© 2008 Microchip Technology Inc. DS22109A-page 1
24VL024H
Device Selection Table
Features:
Single-Supply with Operation down to 1.5V
Low-Power CMOS Technology:
- 400 μA active current, m axim um
-1 μA standby current, maximum
2-Wire Serial Interface Bus, I2C™ Compatible
Schmitt Trigger Inputs for Noise Suppression
Output Slope Control to eliminate Ground Bounce
100 kHz and 400 kHz Compatibility
Page Write Buffer for up to 16 Bytes
Self-Timed Write Cycle (including Aut o-Erase)
Hardware Write Protection for Half Array
(80h-FFh)
Cascadable up to Eight Devices
More than 1 Million Erase/Write Cycles
ESD Protection > 4,000V
Data Retention > 200 Years
Factory Programming (QTP) Available
8-pin PDIP, SOIC, TSSOP, TDFN and MSOP
Packages
Temperature Range:
Pb-Free and RoHS compliant
Description:
The Microchip Technology Inc. 24VL024H is a 2 Kbit
Serial Electrically Erasable PROM with operation
down to 1.5V. The device is organized as a single bl ock
of 256 x 8-bit memory with a 2-wire serial interface.
Low-current design permits operation with typical
standby and active currents of only 1 μA and 400 μA,
respect ively. The de vic e has a p age wri te c apability for
up to 16 bytes of data. Functional address lines allow
the con nectio n of u p to e ight 2 4VL024H devic es on the
same bus for up to 16 Kbits of contiguous EEPROM
memory. The devic e is available in the standard 8-pin
PDIP, 8-pin SOIC (150 mil), TSSOP, 2x3 TDFN and
MSOP packages.
Block Diagram
Package Types
Part Number VCC Range Max. Clock
24VL02 4H 1.5 to 3.6V 400 kHz(1)
Note 1: 100 kHz for VCC < 1.8V
- -20°C to +85°C
I/O
Control
Logic
Memory
Control
Logic XDEC
HV Generator
EEPROM
Array
Write-Protect
Circuitry
YDEC
VCC
VSS
Sense Amp.
R/W Control
SDA SCL
A0 A1 A2 WP
A0
A1
A2
VSS
VCC
WP
SCL
SDA
1
2
3
4
8
7
6
5
PDIP, MSOP SOIC, TSSOP
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
TDFN
A0
A1
A2
VSS
WP
SCL
SDA
VCC
8
7
6
5
1
2
3
4
2K I2C Serial EEPROM with Half-Array Write-Protect
24VL024H
DS22109A-page 2 © 2008 Microchip Technology Inc.
1.0 ELECTRIC AL CHARACTERISTICS
Absolute Maximum Ratings (†)
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied..................................................................................................-20°C to +85°C
ESD protection on all pins......................................................................................................................................................≥ 4 kV
TABLE 1-1: DC CHARACTERISTICS
NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a s tres s rati ng only a nd fun ct ion al operat ion of the device at th ose or any o ther cond iti ons a bove th ose
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
DC CHARACTERISTICS Electrical Characteristics:
VCC = +1.5V to 3.6V TA = -20°C to +85°C
Param.
No. Sym. Characteristic Min. Max. Units Conditions
D1 A0, A1, A2, SCL, SDA
and WP pins: ——
D2 VIH High-level input voltage 0.7 VCC —V
D3 VIL Low-level input voltage 0.3 VCC V—
D4 VHYS Hysteresis of Schmitt
Trigger inputs
(SDA, SCL pins)
0.05 VCC —V(Note)
D5 VOL Low-level output voltage 0.40 V IOL = 3.0 mA @ VCC = 3.6V
IOL = 2.1 mA @ VCC = 2.5V
D6 ILI Input leakage current ±1 μAVIN = VSS or VCC, WP = VSS
D7 ILO Output leaka ge curre nt ±1 μAVOUT = VSS or VCC
D8 CIN,
COUT Pin capacitance
(all inputs/ou tpu t s) —10pFVCC = 3.6V (Note)
TA = 25°C, f = 1 MHz
D9 ICC Read Operating current 400 μAVCC = 3.6V, SCL = 400 kHz
ICC Write 3 mA VCC = 3.6V
D10 ICCS Standby current 1 μAVCC = 3.6V, SCL = SDA = VCC
WP = VSS, A0, A1, A2 = VSS
Note: This parameter is periodically sampled and not 100% tested.
© 2008 Microchip Technology Inc. DS22109A-page 3
24VL024H
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS Electrical Characteristics:
VCC = +1.5V to 3.6V TA = -20°C t o +85° C
Param.
No. Symbol Characteristic Min. Max. Units Conditions
1F
CLK Clock frequency
100
400 kHz 1.5V VCC < 1.8V
1.8V VCC 3.6V
2THIGH Clock high time 4000
600
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
3T
LOW Clock low time 4700
1300
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
4TRSDA and SCL rise time
(Note 1)
1000
300 ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
5TFSDA and SCL fall time
(Note 1)
1000
300 ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
6T
HD:STA Start condition hold time 4000
600
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
7TSU:STA Start condition setup time 4700
600
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
8THD:DAT Data input hold time 0 ns (Note 2)
9TSU:DAT Data input setup time 250
100
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
10 TSU:STO Stop condition setup time 4000
600
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
11 TSU:WP WP setup time 4000
600
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
12 THD:WP WP hold time 4700
600
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
13 TAA Output valid from clock
(Note 2)
3500
900 ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
14 TBUF
Bus fre e tim e : Time the b us must
be fre e befo re a n e w transmis-
sion can start
1300
4700
ns 1.5V VCC < 1.8V
1.8V VCC 3.6V
15 TSP Input filter spike suppression
(SDA and SC L pins) —50ns(Not e 1 and Note 3)
16 TWC Write cycle time (byte or page) 5 ms
17 Endurance 1M cycles 25°C, VCC = 3.6V, Block mode
(Note 4)
Note 1: Not 100% tested. CB = total capacitance of one bus line in pF.
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
3: The combi ned TSP and VHYS spec ifi cat ion s are due to new Sc hm itt Trigger inputs, wh ic h p r ovide impro ve d
noise spike suppression. This eliminates the need for a TI specification for standard operation.
4: This parame ter is not tested but en sure d by characterization. For endurance esti mates in a specif ic appli-
cation, please consult the Total Endurance™ Model which can be obtained from Microchip’s web site at
www.microchip.com.
24VL024H
DS22109A-page 4 © 2008 Microchip Technology Inc.
FIGURE 1-1: BUS TIMING DAT A
(unprotected)
(protected)
SCL
SDA
In
SDA
Out
WP
5
7
6
15
3
2
89
13
D4 4
10
11 12
14
© 2008 Microchip Technology Inc. DS22109A-page 5
24VL024H
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
2.1 SDA Serial Data
This is a bidirectional pin used to transfer addresses
and data into and out of the device. It is an open drain
terminal. Therefore, the SDA bus requires a pull-up
resistor to VCC (typical 10 kΩ for 100 kHz, 2 kΩ for
400 kHz).
For normal data transfer, SDA is allowed to change
only during SCL low. Changes during SCL high are
reserved for indicating the Start an d Stop condit ions.
2.2 SCL Serial Clock
The SCL in pu t is u se d to s ynchro ni ze th e da t a transfer
to and from the device.
2.3 A0, A1, A2
The A0, A1 and A2 inputs are used by the 24VL024H
for multiple device operations. The levels on these
inputs are compared with the corresponding bits in the
slave address. The chip is selected if the compare is
true.
Up to eight 24VL024H devices may be connected to
the same bus by using different Chip Select bit
combinations. These inputs must be connected to
either VCC or VSS.
In most applications the chip address inputs, A0, A1
and A2, are hard-wired to logic ‘0’ or logic1’. For
applications in which these pins are controlled by a
microc ontroller or oth er programmabl e device, th e chip
address pins must be driven to logic ‘0’ or logic1
before normal device operation can proceed.
2.4 WP
WP is the hardware w rite - prot ec t pin. It mu st be tie d to
VCC or VSS. If tied to VCC, the hardware write protection
is enabled and will protect half of the array (80h-FFh).
If the WP pin is tied to VSS the hardware write
protection is disabled.
2.5 Noise Protection
The 24VL024H employs a VCC thresh old dete ctor cir -
cuit that disables the internal erase/write logic if the
VCC is below 1.2 volts at nominal conditions.
The SCL and SDA inputs have Schmitt Trigger and
filter circuits that suppress noise spikes to assure
proper device operation, even on a noisy bus.
Name 8-pin
PDIP 8-pin
SOIC 8-pin
TSSOP 8-pin
MSOP 8-pin
TDFN Function
A0 1 1 1 1 1 User Configurable Chip Select
A1 2 2 2 2 2 User Configurable Chip Select
A2 3 3 3 3 3 User Configurable Chip Select
VSS 44444Ground
SDA 5 5 5 5 5 Serial Data
SCL 6 6 6 6 6 Serial Clock
WP 7 7 7 7 7 Write-Protect Input
VCC 8 8 8 8 8 + 1.5V to 3.6V
24VL024H
DS22109A-page 6 © 2008 Microchip Technology Inc.
3.0 FUNCTIONAL DESCRIPTION
The 24VL0 24H support s a bidirectio nal, 2-wire bu s and
data transmission protocol. A device that sends data
onto the bus is defined as a transmitter, and a device
receiving data as a receiver. The bus has to be con-
trolled by a master device that generates the Serial
Clock (SCL), controls the bus access and generates
the Start and Stop conditions, while the 24VL024H
works as slave. Both master and slave can operate as
a transmitter or receiver, but the master device
determines which mode is activated.
© 2008 Microchip Technology Inc. DS22109A-page 7
24VL024H
4.0 BUS CHARACTERISTICS
The following bus protocol has been defined:
Data transfer may be initiated only when the bus
is not busy.
During data transfer, the data line must remain
stab le when ever th e clock lin e is high . Change s in
the data line while the clock line is high will be
interpreted as a Start or Stop condition.
Accordingly, the following bus conditions have been
defined (Figure 4-1 ).
4.1 Bus Not Busy (A)
Both data and clock lines remain high.
4.2 Start Data Transfer (B)
A high-to-low transition of the SDA line while the clock
(SCL) is high determines a Start condition. All
commands must be preceded by a Start condition.
4.3 S top Data Transfer (C)
A low-to-high transition of the SDA line while the clock
(SCL) is high determines a Stop condition. All
operations must be ended with a Stop condition.
4.4 Data Valid (D)
The state of the data line represents valid data when,
after a Start condition, the data line is stable for the
duratio n of the high period of the clock signal.
The data on the line must be changed during the low
period of the clock signal. There is one bit of data per
clock pulse.
Each dat a transf er is initiated w ith a S tart condition an d
terminated with a Stop condition. The number of the
data bytes transferred between the Start and Stop
conditions is determined by the master device and is,
theoret ically, unlimite d, though only the la st sixte en wil l
be stored when doing a write operation. When an
overwrite does occur, it will replace data in a first-in
first- out fashion.
4.5 Acknowledge
Each receiving device, when addressed, is required to
generate an acknowledge after the reception of each
byte. Th e mast er device mus t ge nera te a n ex tra c lock
pulse which is associated with this Acknowledge bit.
The device that acknowledges has to pull down the
SDA line during the Acknowledge clock pulse in such a
way that the SDA line is stable low during the high
period of the acknowledge-related clock pulse. Of
course, setup and hold times must be taken into
account. A master must signal an end of data to the
slave b y not generating an Acknowledge bit on the last
byte that has been clocked out of the slave. In this case,
the slave must leave the data line high to enable the
master to generate the Stop condition (Figure 4-2).
FIGURE 4-1: D ATA TRANSFER SEQUENCE ON THE SERIAL BUS CHARACTERISTICS
FIGURE 4-2: ACKNOWLEDGE TIMING
Note: The 24VL024H does not generate any
Acknowledge bits if an internal
programming cycle is in progress.
(A) (B) (C) (D) (A)(C)
SCL
SDA
Start
Condition Address or
Acknowledge
Valid
Data
Allowed
to Change
Stop
Condition
SCL 987654321 123
The transmitter must release the SDA line at this point
allowing the receiver to pull the SDA line low to acknowl-
edge the previous eight bits of data.
The receiver must release the SDA line at
this point so the transmitter can continue
sending data.
SDA
Acknowledge
Bit
Data fro m tr a nsmitterData from transmitter
24VL024H
DS22109A-page 8 © 2008 Microchip Technology Inc.
5.0 DEVICE ADDRESSING
A control byte is the first byte received following the
Start condition from the master device (Figure 5-1).
The con tr ol by te cons ists of a fou r-bi t co ntro l code ; for
the 24VL024H this is set as ‘1010’ binary for read and
write op erat ion s. Th e ne xt three bit s of th e co ntro l by te
are t he C hip Sele ct b its (A 2, A1 , A0) . Th e C hip S ele ct
bits allow the use of up to eight 24VL024H devices on
the same bus and are used to select which device is
accessed. The Chip Select bits in the control byte must
corresp ond to the logic lev els on the corresp onding A2,
A1 and A0 pins for the device to respond. These bits
are in effect the three Most Significant bits of the word
address.
The last bit of the control byte defines the operation to
be performed. When set to a ‘1’, a read operation is
selected. When set to a ‘0’, a write operation is
selected. Following the Start condition, the 24VL024H
monitors the SDA bus, checking the control byte being
transmitted. Upon receiving a ‘1010’ code and appro-
priate Chip Select bits, the slave device outputs an
Acknowledge signal on the SDA line. Depending on the
stat e of the R /W bit, the 24VL024 H will select a rea d or
write operation.
FIGURE 5-1: CONTROL BYTE FORMAT
5.1 Contiguous Addressing Across
Multi ple Devices
The Chip Select bits (A2, A1, A0) can be used to
expa nd the contiguo us address sp ace for up to 16K bits
by adding up to eight 24VL024H devices on the same
bus. In this case, software can use A0 of the control
byte as address bit A9, A1 as address bit A10, and A2
as address bit A11. It is not possible to sequentially
read across device boundaries.
1010A2 A1 A0SACKR/W
Control Code Chip Select
Bits
Slave Address
Acknowledge Bit
Start Bit
Read/Write Bit
© 2008 Microchip Technology Inc. DS22109A-page 9
24VL024H
6.0 WRITE OPERATIONS
6.1 Byte Write
Following the Start signal from the master, the device
code (4 bits), the Chip Select bits (3 bits) and the R/W
bit (which is a logic low) are placed onto the bus by the
master transmitter. The device will acknowledge this
control by te during the ninth clock pulse. The ne xt byte
tran smit ted by the ma ster is the word add res s and wi ll
be written into the Address Pointer of the 24VL024H.
After receiving another Acknowledge signal from the
24VL024H, the master device will transmit the data
word to be wr itten into the addressed mem ory locatio n.
The 24VL024H acknowledges again and the master
generates a Stop condition. This initiates the internal
write cycle and the 24VL024H will not
generate Acknowledge signals during this time
(Figure 6-1). If an attempt is made to write to the
protected portion of the array when the hardware write
protection has been enabled, the device will
acknowl edge the co mmand, bu t no data will be wr itten.
The write cycle time must be observed even if write
protection is ena ble d.
6.2 Page Write
The write-control byte, word address and the first data
byte are tr ans mi tted to the 24 VL02 4H in the sam e wa y
as in a byte write. But instead of generating a Stop
conditi on, the maste r transmit s up to 15 addi tional data
bytes to the 24VL024H that are temporarily stored in
the on-chip page buffer and will be written into the
memory once the master has transmitted a Stop
condition. Upon receipt of each word, the four lower
order Address Pointer bits are internally incremented
by on e.
The higher order four bits of the word address remain
constant. If the master should transmit more than 16
bytes prior to generating the Stop condition, the
address counter will roll over and the previously
receive d dat a will be overwri tten. As w ith the by te write
operation, once the Stop condition is received, an
internal write cyc le will begin (Figure 6-2). If an att empt
is made to write to the protected portion of the array
when the hardware write protection has been enabled,
the devi ce wi ll ack nowled ge the c omma nd, but no dat a
will be written. The write cycle time must be observed
even if write protection is enabled.
6.3 Write Protection
The W P pi n m us t be t ie d t o VCC or VSS. If tied to VCC,
half of t he array wil l be write-protec ted (8 0h-FFh). If th e
WP pin is tied to VSS, write operations to all address
loc ations are allowed.
FIGURE 6-1: BYTE WRITE
FIGURE 6-2: PAGE WRITE
Note: Page write opera tions are l imited to wri ting
bytes within a single physical page,
regardless of the number of bytes
actually being written. Physical page
boundaries start at addresses that are
integer multiples of the page buffer size (or
‘page siz e’ ) an d end at ad dres s es that are
integer multiples of [page size – 1]. If a
Page Write command attempts to write
across a physical page boundary, the
result is that the data wraps around to the
beginning of the current page (overwriting
data previously stored there), instead of
being w ritten to the next page, as migh t be
expected. It is therefore necessary that the
application software prevent page write
operations that would attempt to cross a
page boundary.
S P
Bus Activit y
Master
SDA Line
Bus Activity
S
T
A
R
T
S
T
O
P
Control
Byte Word
Address Data
A
C
K
A
C
K
A
C
K
S P
Bus Activit y
Master
SDA Line
Bus Activity
S
T
A
R
T
Control
Byte Word
Address (n) Data (n) Data (n + 15)
S
T
O
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Data (n +1)
24VL024H
DS22109A-page 10 © 2008 Microchip Technology Inc.
7.0 ACKNOWLEDGE POLLING
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a Write
comma nd has been is sued from the master , the device
initiate s the internall y-timed write cycle and ACK polling
can be initiated immediately. This involves the master
sending a Start condition followed by the control byte
for a Write command (R/W = 0). If the device is still
busy wi th t he write cycl e, no ACK wil l be re turned. If no
ACK is returned, the Start bit and control byte must be
re-sent. If the cycle is complete, the device will return
the ACK and the mast er can then pro ceed with the next
Read or Write command. See Figure 7-1 for a flow
diagram of this operation.
FIGURE 7-1: ACKNOWLEDGE POLLING
FLOW
Send
Wri te Co mm an d
Send Stop
Condition to
Initiate Write Cycle
Send Start
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0)?
Next
Operation
No
Yes
© 2008 Microchip Technology Inc. DS22109A-page 11
24VL024H
8.0 READ OPERATIONS
Read operations are initiated in the same way as write
operations, with the exception that the R/W bit of the
slave address is set to ‘1. There are three basic types
of read operat ions: current address read , rand om rea d
and sequential read.
8.1 Current Address Read
The 24VL0 24H co ntains an addres s count er that main-
tains the address of the last word accessed, internally
incremented by one. Therefore, if the previous read
access was to address n, the next current ad dress read
operatio n wou ld acc ess dat a f rom add ress n + 1. U pon
receipt of the slave address with the R/W bit set to ‘1’,
the 24VL024H issues an acknowledge and transmits
the 8-bit data word. The master will not acknowledge
the transfer , but do es generate a S top condition and the
24VL024H discontinues transmission (Figure 8-1).
8.2 Random Read
Random read operations allow the master to access
any memory location in a random manner. To perform
this typ e of re ad ope ratio n, the word add res s mus t firs t
be set. This is done b y sendi ng the word address to the
24VL024H as part of a write operation.
Once the word address is s ent, the master ge nerates a
Start condition following the acknowledge. This
terminates the write operation, but not before the
internal Address Pointer is set. Th e mast er then i ssues
the control byte again but with the R/W bit se t to a ‘ 1’.
The 24VL024H will then issue an acknowledge and
transmits the eight-bit data word. The master will not
acknowledge the transfer, but does generate a Stop
condition and the 24VL024H discont inues transmission
(Fig ure 8-2 ). After this comm and, th e interna l addre ss
counter will point to the address location following the
one that was jus t read.
8.3 Sequentia l Read
Sequential reads are initiated in the same way as a
random rea d ex ce pt that af ter th e 24VL024H tran sm its
the first data byte, the master issues an acknowledge
as opposed to a Stop condition in a random read. This
dire cts t h e 24V L 0 24H t o tr an s mi t th e n ex t se qu ent i al ly
addressed 8-bit word (Figure 8-3).
To provide sequential reads, the 24VL024H contains
an internal Address Pointer which is incremented by
one at the completion of each operation. This Address
Pointer al lows the entire me mory contents to b e serially
read during one operation. The internal Address
Pointer will automatically roll over from address FFh to
address 00h.
FIGURE 8-1: CURRENT ADDRESS READ
Bus Acti vity
Master
SDA Line
Bus Acti vity
P
S
S
T
O
P
Control
Byte
S
T
A
R
TData
A
C
K
N
O
A
C
K
24VL024H
DS22109A-page 12 © 2008 Microchip Technology Inc.
FIGURE 8-2: RANDOM READ
FIGU RE 8-3 : SEQU ENT I AL REA D
S P
S
Bus Acti vity
Master
SDA Line
Bus Acti vity
S
T
A
R
T
S
T
O
P
Control
Byte
A
C
K
Word
Address (n) Control
Byte
S
T
A
R
TData (n)
A
C
KA
C
K
N
O
A
C
K
Bus Activity
Master
SDA Line
Bus Activity
Control
Byte Data (n) Data (n + 1) Data (n + 2) Data (n + X)
N
O
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
S
T
O
P
P
© 2008 Microchip Technology Inc. DS22109A-page 13
24VL024H
9.0 PACKAGING INFORMATION
9.1 Package Marking Information
XXXXXXXX
T/XXXNNN
YYWW
8-Lead PDIP (300 mil) Example:
8-Lead SOIC (3.90 mm) Example:
XXXXXXXT
XXXXYYWW
NNN
8-Lead TS SOP Example:
24VL024H
P 112F
0821
24VL24H
SN 0821
12F
8-Lead MSOP Example:
XXXX
TYWW
NNN
V24H
821
12F
4V24H
82112F
XXXXXT
YWWNNN
3
e
3
e
8-Lead 2x3 TDFN Example:
AF3
821
12
XXX
YWW
NN
24VL024H
DS22109A-page 14 © 2008 Microchip Technology Inc.
Legend: XX...X Part number or part number code
T Temperature (I, E)
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week c ode (week of Janu ary 1 is week ‘01’)
NNN Alphanumeric traceability code (2 characters for small packages)
Pb-free JEDEC designator for Matte Tin (Sn)
Note: For very small packages with no room for the Pb-free JEDEC designator
, the marking will only appear on the outer carton or reel label.
Note: In the event the ful l Micro chip p ar t numbe r canno t be marke d on one li ne, it w ill
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
3
e
3
e
Note: Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion.
*Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.
© 2008 Microchip Technology Inc. DS22109A-page 15
24VL024H


  !"#$%&"' ()"&'"!&)&#*&&&#
 +%&,&!&
- '!!#.#&"#'#%!&"!!#%!&"!!!&$#/!#
 '!#&.0
1,21!'!&$& "!**&"&&!
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
6&! 7,8.
'!9'&! 7 7: ;
7"')%! 7 <
& 1,
&& = = 
##44!!   - 
1!&&   = =
"#&"#>#& .  - -
##4>#& .   <
: 9& -< -? 
&& 9  - 
9#4!! <  
69#>#& )  ? 
9*9#>#& )  < 
: *+ 1 = = -
N
E1
NOTE 1
D
12
3
A
A1
A2
L
b1
b
e
E
eB
c
  * ,<1
24VL024H
DS22109A-page 16 © 2008 Microchip Technology Inc.
 ! ""#$%& !'

  !"#$%&"' ()"&'"!&)&#*&&&#
 +%&,&!&
- '!!#.#&"#'#%!&"!!#%!&"!!!&$#''!#
 '!#&.0
1,2 1!'!&$& "!**&"&&!
.32 %'!("!"*&"&&(%%'&"!!
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
6&! 99..
'!9'&! 7 7: ;
7"')%! 7 <
& 1,
: 8& = = 
##44!!   = =
&#%%+  = 
: >#& . ?1,
##4>#& . -1,
: 9& 1,
,'%@&A  = 
3&9& 9  = 
3&& 9 .3
3& IB = <B
9#4!!  = 
9#>#& ) - = 
#%& DB = B
#%&1&&' EB = B
D
N
e
E
E1
NOTE 1
12 3
b
A
A1
A2
L
L1
c
h
h
φ
β
α
  * ,1
© 2008 Microchip Technology Inc. DS22109A-page 17
24VL024H
 ! ""#$%& !'
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
24VL024H
DS22109A-page 18 © 2008 Microchip Technology Inc.
() )"* ! (+%+( !

  !"#$%&"' ()"&'"!&)&#*&&&#
 '!!#.#&"#'#%!&"!!#%!&"!!!&$#''!#
- '!#&.0
1,2 1!'!&$& "!**&"&&!
.32 %'!("!"*&"&&(%%'&"!!
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
6&! 99..
'!9'&! 7 7: ;
7"')%! 7 <
& ?1,
: 8& = = 
##44!!  <  
&#%%   = 
: >#& . ?1,
##4>#& . -  
##49&  - -
3&9& 9  ? 
3&& 9 .3
3& IB = <B
9#4!!  = 
9#>#& )  = -
D
N
E
E1
NOTE 1
12
b
e
c
A
A1
A2
L1 L
φ
  * ,<?1
© 2008 Microchip Technology Inc. DS22109A-page 19
24VL024H
," !*-, , !

  !"#$%&"' ()"&'"!&)&#*&&&#
 '!!#.#&"#'#%!&"!!#%!&"!!!&$#''!#
- '!#&.0
1,2 1!'!&$& "!**&"&&!
.32 %'!("!"*&"&&(%%'&"!!
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
6&! 99..
'!9'&! 7 7: ;
7"')%! 7 <
& ?1,
: 8& = = 
##44!!   < 
&#%%   = 
: >#& . 1,
##4>#& . -1,
: 9& -1,
3&9& 9  ? <
3&& 9 .3
3& B = <B
9#4!! < = -
9#>#& )  = 
D
N
E
E1
NOTE 1
12
e
b
A
A1
A2
c
L1 L
φ
  * ,1
24VL024H
DS22109A-page 20 © 2008 Microchip Technology Inc.
.$*-,/00%12(.
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
© 2008 Microchip Technology Inc. DS22109A-page 21
24VL024H
.$*-,/00%12(.
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
24VL024H
DS22109A-page 22 © 2008 Microchip Technology Inc.
REVISION HISTORY
Revision A (10/2008)
Original release.
© 2008 Microchip Technology Inc. DS22109A-page 23
24VL024H
THE MICROCHIP WEB SITE
Microc hip pro vides onl ine s upport v ia our W WW site at
www.microchi p.c om . Thi s web si te i s us ed as a m ean s
to make files and information easily available to
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Microchip’s customer notification service helps keep
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To register, access the Microchip web site at
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Users of Microchip products can receive assistance
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Technical s upport is a vailable through the web si te
at: http://support.microchip.com
24AA024H/24LC024H
DS22109A-page 24 © 2008 Microchip Technology Inc.
READER RESP ONSE
It is ou r intentio n to provide you w it h th e b es t do cument ation po ss ib le to ensure suc c es sfu l u se of y ou r M ic roc hip prod-
uct. If you wi sh to prov ide you r comment s on org aniza tion, clar ity, subj ect matte r , and ways i n which o ur docum entatio n
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DS22109A24VL024H
1. What are the best featur es of t his document?
2. How does this document meet your hardware and software development needs?
3. Do you find the organization of this document easy to follow? If not, why?
4. What additions to the document do you think would enhance the structure and subject?
5. What deletions from the document could be made without affecting the overall usefulness?
6. Is there any incorrect or misleading information (what and where)?
7. How would you improve this document?
© 2008 Microchip Technology Inc. DS22109A-page 25
24VL024H
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Device: 24VL024H = 1.5V, 2 Kbit Addressable Serial EEPROM
24VL024HT = 1.5V, 2 Kbit Addressable Serial EEPROM
(Ta pe and Reel)
Temperature Range: = -20°C to +85°C
Package: P = Plastic DIP, (300 mil Body), 8-lead
SN = Plastic SOIC, (3.90 mm Body)
ST = TSSOP, (4.4 mm Body), 8-lead
MS = MSOP, (Plastic Micro Small Outline), 8-lead
MNY(1) = TDFN, (2x3x0.75 mm Body), 8-lead
PART NO. X/XX
PackageTemperature
Range
Device
Examples:
a) 24VL02 4H/P: 1.5V, PDIP Package.
b) 24VL02 4H/SN: 1.5V, SOIC Package.
c) 24VL024HT/ST: 1.5V, TSSOP Package,
Tape and Reel
d) 24VL02 4HT/MNY: 1. 5V, T DFN P ackage,
Tape and Reel
Note 1: “Y” indicates a Nickel Palladium Gold (NiPdAu) finish.
24VL024H
DS22109A-page 26 © 2008 Microchip Technology Inc.
NOTES:
© 2008 Microchip Technology Inc. DS22109A-page 27
Information contained in this publication regarding device
applications a nd t he like is pro vid ed only f or yo ur convenience
and may be su persed ed by updates . I t is your res ponsibil it y to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
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OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
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intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICm icro,
PICSTA RT, rfPI C, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Inc orporated in the
U.S.A. and other countries.
FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
SEEV AL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Prog ra m ming, IC SP, ICE P I C , Mi n d i , M iW i , M PASM, M P L A B
Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,
PICDEM.net, PICtail , PIC32 logo, PowerCal, PowerInfo,
PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, WiperLock and ZENA are trademarks of
Microchip Technology Incorporat ed in the U.S.A. and other
countries.
SQTP is a service mark of Microchip T echnology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2008, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Note the following details of the code protection feature on Microchip devices:
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on t he market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.
Code protection is c onstantly evolving. We a t Microc hip are co m mitted to continuously improving the code prot ect ion featur es of our
products. Attempts to break Microchip’ s code protection feature may be a violation of the Digital Millennium Copyright Act. If such act s
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopp ing
devices, Serial EEPROMs, microperiph erals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
DS22109A-page 28 © 2008 Microchip Technology Inc.
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Fax: 34-91-708-08 -91
UK - Wokingham
Tel: 44-118-921- 5869
Fax: 44-118-921-5820
WORLDWIDE SALES AND SERVICE
01/02/08