1
Features
•Low-voltage and Standard-voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V to 5.5V)
– 2.5 (VCC = 2.5V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
•User-selectable Internal Organization
–1K: 128 x 8 or 64 x 16
–2K: 256 x 8 or 128 x 16
–4K: 512 x 8 or 256 x 16
•3-wire Serial Interface
•2 MHz Clock Rate (5V) Compatibility
•Self-timed Write Cycle (10 ms max)
•High Reliability
–Endurance: 1 Million Write Cycles
–Data Retention: 100 Years
–ESD Protection: >4000V
•Automotive Grade and Extended Temperature Devices Available
•8-pin PDIP, 8-lead JEDEC and EIAJ SOIC, and 8-lead TSSOP Packages
Description
The AT93C46/56/57/66 provides 1024/2048/4096 bits of serial electrically erasable
programmable read only memory (EEPROM) organized as 64/128/256 words of 16
bits each, when the ORG pin is connected to VCC and 128/256/512 words of 8 bits
each when it is tied to ground. The device is optimized for use in many industrial and
commercial applications where low power and low voltage operations are essential.
The AT93C46/56/57/66 is available in space saving 8-pin PDIP and 8-lead JEDEC
and EIAJ SOIC packages.
3-wire Serial
EEPROMs
1K (128 x 8 or 64 x 16)
2K (256 x 8 or 128 x 16)
4K (512 x 8 or 256 x 16)
AT93C46
AT93C56
AT93C57
AT93C66
Rev. 0172L–10/99
Pin Configurations
Pin Name Function
CS Chip Select
SK Serial Data Clock
DI Serial Data Input
DO Serial Data Output
GND Ground
VCC Power Supply
ORG Internal Organization
DC Don’t Connect
8-pin PDIP
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
8-lead SOIC
Rotated (R)
(1K JEDEC Only)
1
2
3
4
8
7
6
5
DC
VCC
CS
SK
ORG
GND
DO
DI
8-lead SOIC
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
(continued)
8-lead TSSOP
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
AT93C46/56/57/66
2
The AT93C46/56/57/66 is enabled through the Chip Select
pin (CS), and accessed via a 3-wire serial interface consist-
ing of Data Input (DI), Data Output (DO), and Shift Clock
(SK). Upon receiving a READ instruction at DI, the address
is decoded and the data is clocked out serially on the data
output pin DO. The WRITE cycle is completely self-timed
and no separate ERASE cycle is required before WRITE.
The WRITE cycle is only enabled when the part is in the
ERASE/WRITE ENABLE state. When CS is brought “high”
following the initiation of a WRITE cycle, the DO pin out-
puts the READY/BUSY status of the part.
The AT93C46 is available in 4.5V to 5.5V, 2.7V to 5.5V,
2.5V to 5.5V, and 1.8V to 5.5V versions. The
AT93C56/57/66 is available in 4.5V to 5.5V, 2.7V to 5.5V,
and 2.5V to 5.5V versions.
Block Diagram
Note: 1. When the ORG pin is connected to VCC, the x 16 organization is selected. When it is connected to ground, the x 8 organiza-
tion is selected. If the ORG pin is left unconnected, then an internal pullup device (of approximately 1 MΩ) will select the x
16 organization. This feature is not available on 1.8V devices.
Absolute Maximum Ratings*
Operating Temperature.................................. -55°C to +125°C*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin
with Respect to Ground .....................................-1.0V to +7.0V
Maximum Operating Voltage .......................................... 6.25V
DC Output Current........................................................ 5.0 mA
AT93C46/56/57/66
3
Note: 1. This parameter is characterized and is not 100% tested.
Note: 1. VIL min and VIH max are reference only and are not tested.
Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +5.0V (unless otherwise noted).
Symbol Test Conditions Max Units Conditions
COUT Output Capacitance (DO) 5 pF VOUT = 0V
CIN Input Capacitance (CS, SK, DI) 5 pF VIN = 0V
DC Characteristics
Applicable over recommended operating range from: TAI = -40°C to +85°C, VCC = +1.8V to +5.5V,
TAC = 0°C to +70°C, VCC = +1.8V to +5.5V (unless otherwise noted).
Symbol Parameter Test Condition Min Typ Max Unit
VCC1 Supply Voltage 1.8 5.5 V
VCC2 Supply Voltage 2.5 5.5 V
VCC3 Supply Voltage 2.7 5.5 V
VCC4 Supply Voltage 4.5 5.5 V
ICC Supply Current VCC = 5.0V READ at 1.0 MHz 0.5 2.0 mA
WRITE at 1.0 MHz 0.5 2.0 mA
ISB1 Standby Current VCC = 1.8V CS = 0V 0 0.1 µA
ISB2 Standby Current VCC = 2.5V CS = 0V 6.0 10.0 µA
ISB3 Standby Current VCC = 2.7V CS = 0V 6.0 10.0 µA
ISB4 Standby Current VCC = 5.0V CS = 0V 17 30 µA
IIL Input Leakage VIN = 0V to VCC 0.1 1.0 µA
IOL Output Leakage VIN = 0V to VCC 0.1 1.0 µA
VIL1 (1)
VIH1(1)
Input Low Voltage
Input High Voltage 4.5V ≤ VCC ≤ 5.5V -0.6
2.0
0.8
VCC + 1 V
VIL2 (1)
VIH2(1)
Input Low Voltage
Input High Voltage 1.8V ≤ VCC ≤ 2.7V -0.6
VCC x 0.7
VCC x 0.3
VCC + 1 V
VOL1
VOH1
Output Low Voltage
Output High Voltage 4.5V ≤ VCC ≤ 5.5V IOL = 2.1 mA 0.4 V
IOH = -0.4 mA 2.4 V
VOL2
VOH2
Output Low Voltage
Output High Voltage 1.8V ≤ VCC ≤ 2.7V IOL = 0.15 mA 0.2 V
IOH = -100 µA VCC - 0.2 V
AT93C46/56/57/66
4
Note: 1. This parameter is characterized and is not 100% tested.
AC Characteristics
Applicable over recommended operating range from TA = -40°C to + 85°C, VCC = As Specified,
CL = 1 TTL Gate and 100 pF (unless otherwise noted).
Symbol Parameter Test Condition Min Typ Max Units
fSK
SK Clock
Frequency
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
0
0
0
0
2
1
0.5
0.25
MHz
tSKH SK High Time
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
250
500
1000
ns
tSKL SK Low Time
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
250
500
1000
ns
tCS
Minimum CS
Low Time
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
250
500
1000
ns
tCSS CS Setup Time Relative to SK
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
50
50
100
200
ns
tDIS DI Setup Time Relative to SK
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
100
100
200
400
ns
tCSH CS Hold Time Relative to SK 0 ns
tDIH DI Hold Time Relative to SK
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
100
100
200
400
ns
tPD1 Output Delay to ‘1’AC Test
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
250
500
1000
ns
tPD0 Output Delay to ‘0’AC Test
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
250
500
1000
ns
tSV CS to Status Valid AC Test
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
250
500
1000
ns
tDF
CS to DO in High
Impedance
AC Test
CS = VIL
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
100
100
200
400
ns
tWP Write Cycle Time
0.1 10 ms
4.5V ≤ VCC ≤ 5.5V 1 ms
Endurance(1) 5.0V, 25°C, Page Mode 1M Write Cycles
AT93C46/56/57/66
5
Instruction Set for the AT93C46
Instruction SB
Op
Code
Address Data
Commentsx 8 x 16 x 8 x 16
READ 1 10 A6 - A0A5 - A0Reads data stored in memory, at
specified address.
EWEN 1 00 11XXXXX 11XXXX Write enable must precede all
programming modes.
ERASE 1 11 A6 - A0A5 - A0Erase memory location An - A0.
WRITE 1 01 A6 - A0A5 - A0D7 - D0D15 - D0Writes memory location An - A0.
ERAL 1 00 10XXXXX 10XXXX Erases all memory locations. Valid
only at VCC = 4.5V to 5.5V.
WRAL 1 00 01XXXXX 01XXXX D7 - D0D15 - D0Writes all memory locations. Valid
only at VCC = 4.5V to 5.5V.
EWDS 1 00 00XXXXX 00XXXX Disables all programming instructions.
Instruction Set for the AT93C57
Instruction SB
Op
Code
Address Data
Commentsx 8 x 16 x 8 x 16
READ 1 10 A7 - A0A6 - A0Reads data stored in memory, at
specified address.
EWEN 1 00 11XXXXXX 11XXXXX Write enable must precede all
programming modes.
ERASE 1 11 A7 - A0A6 - A0Erase memory location An - A0.
WRITE 1 01 A7 - A0A6 - A0D7 - D0D15 - D0Writes memory location An - A0.
ERAL 1 00 10XXXXXX 10XXXXX Erases all memory locations. Valid
only at VCC = 4.5V to 5.5V.
WRAL 1 00 01XXXXXX 01XXXXX D7 - D0D15 - D0Writes all memory locations. Valid
only at VCC = 4.5V to 5.5V.
EWDS 1 00 00XXXXXX 00XXXXX Disables all programming instructions.
AT93C46/56/57/66
6
Functional Description
The AT93C46/56/57/66 is accessed via a simple and ver-
satile 3-wire serial communication interface. Device opera-
tion is controlled by seven instructions issued by the host
processor. A valid instruction starts with a rising edge
of CS and consists of a Start Bit (logic “1”) followed by the
appropriate Op Code and the desired memory Address
location.
READ (READ): The Read (READ) instruction contains
the Address code for the memory location to be read. After
the instruction and address are decoded, data from the
selected memory location is available at the serial output
pin DO. Output data changes are synchronized with the ris-
ing edges of serial clock SK. It should be noted that a
dummy bit (logic “0”) precedes the 8- or 16-bit data output
string.
ERASE/WRITE (EWEN): To assure data integrity, the
part automatically goes into the Erase/Write Disable
(EWDS) state when power is first applied. An Erase/Write
Enable (EWEN) instruction must be executed first before
any programming instructions can be carried out. Please
note that once in the Erase/Write Enable state, program-
ming remains enabled until an Erase/Write Disable
(EWDS) instruction is executed or VCC power is removed
from the part.
ERASE (ERASE): The Erase (ERASE) instruction pro-
grams all bits in the specified memory location to the logical
“1” state. The self-timed erase cycle starts once the
ERASE instruction and address are decoded. The DO pin
outputs the READY/BUSY status of the part if CS is
brought high after being kept low for a minimum of 250 ns
(tCS). A logic “1” at pin DO indicates that the selected mem-
ory location has been erased, and the part is ready for
another instruction.
WRITE (WRITE): The Write (WRITE) instruction contains
the 8 or 16 bits of data to be written into the specified mem-
ory location. The self-timed programming cycle, tWP, starts
after the last bit of data is received at serial data input pin
DI. The DO pin outputs the READY/BUSY status of the part
if CS is brought high after being kept low for a minimum of
250 ns (tCS). A logic “0” at DO indicates that programming
is still in progress. A logic “1” indicates that the memory
location at the specified address has been written with the
data pattern contained in the instruction and the part is
ready for further instructions. A READY/BUSY status can-
not be obtained if the CS is brought high after the end
of the self-timed programming cycle, tWP.
ERASE ALL (ERAL): The Erase All (ERAL) instruction
programs every bit in the memory array to the logic “1”
state and is primarily used for testing purposes. The DO pin
outputs the READY/BUSY status of the part if CS is
brought high after being kept low for a minimum of 250 ns
(tCS). The ERAL instruction is valid only at VCC = 5.0V ±
10%.
WRITE ALL (WRAL): The Write All (WRAL) instruction
programs all memory locations with the data patterns spec-
ified in the instruction. The DO pin outputs the
READY/BUSY status of the part if CS is brought high after
being kept low for a minimum of 250 ns (tCS). The WRAL
instruction is valid only at VCC = 5.0V ± 10%.
ERASE/WRITE DISABLE (EWDS): To protect against
accidental data disturb, the Erase/Write Disable (EWDS)
instruction disables all programming modes and should be
executed after all programming operations. The operation
of the READ instruction is independent of both the EWEN
and EWDS instructions and can be executed at any time.
Instruction Set for the AT93C56 and AT93C66
Instruction SB
Op
Code
Address Data
Commentsx 8 x 16 x 8 x 16
READ 1 10 A8 - A0A7 - A0Reads data stored in memory, at
specified address.
EWEN 1 00 11XXXXXXX 11XXXXXX Write enable must precede all
programming modes.
ERASE 1 11 A8 - A0A7 - A0Erases memory location An - A0.
WRITE 1 01 A8 - A0A7 - A0D7 - D0D15 - D0Writes memory location An - A0.
ERAL 1 00 10XXXXXXX 10XXXXXX Erases all memory locations. Valid
only at VCC = 4.5V to 5.5V.
WRAL 1 00 01XXXXXXX 01XXXXXX D7 - D0D15 - D0Writes all memory locations. Valid
when VCC = 5.0V ± 10% and Disable
Register cleared.
EWDS 1 00 00XXXXXXX 00XXXXXX Disables all programming instructions.
AT93C46/56/57/66
7
Timing Diagrams
Synchronous Data Timing
Note: 1. This is the minimum SK period.
Note: 1. A8 is a DON’T CARE value, but the extra clock is required.
2. A7 is a DON’T CARE value, but the extra clock is required.
READ Timing
Organization Key for Timing Diagrams
I/O
AT93C46 (1K) AT93C56 (2K) AT93C57 (2K) AT93C66 (4K)
x 8 x 16 x 8 x 16 x 8 x 16 x 8 x 16
ANA6A5A8(1) A7(2) A7A6A8A7
DND7D15 D7D15 D7D15 D7D15
AT93C46/56/57/66
10
AT93C46 Ordering Information
tWP (max)
(ms)
ICC (max)
(µA)
ISB (max)
(µA)
fMAX
(kHz) Ordering Code Package Operation Range
10 2000 30.0 2000 AT93C46-10PC
AT93C46-10SC
AT93C46R-10SC
AT93C46W-10SC
AT93C46-10TC
8P3
8S1
8S1
8S2
8T
Commercial
(0°C to 70°C)
30.0 2000 AT93C46-10PI
AT93C46-10SI
AT93C46R-10SI
AT93C46W-10SI
AT93C46-10TI
8P3
8S1
8S1
8S2
8T
Industrial
(-40°C to 85°C)
10 800 10.0 1000 AT93C46-10PC-2.7
AT93C46-10SC-2.7
AT93C46R-10SC-2.7
AT93C46W-10SC-2.7
AT93C46-10TC-2.7
8P3
8S1
8S1
8S2
8T
Commercial
(0°C to 70°C)
10.0 1000 AT93C46-10PI-2.7
AT93C46-10SI-2.7
AT93C46R-10SI-2.7
AT93C46W-10SI-2.7
AT93C46-10TI-2.7
8P3
8S1
8S1
8S2
8T
Industrial
(-40°C to 85°C)
Package Type
8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8S2 8-lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC)
8T 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
Options
Blank Standard Operation (4.5V to 5.5V)
-2.7 Low Voltage (2.7V to 5.5V)
-2.5 Low Voltage (2.5V to 5.5V)
RRotated Pinout
AT93C46/56/57/66
11
10 600 10.0 500 AT93C46-10PC-2.5
AT93C46-10SC-2.5
AT93C46R-10SC-2.5
AT93C46W-10SC-2.5
AT93C46-10TC-2.5
8P3
8S1
8S1
8S2
8T
Commercial
(0°C to 70°C)
10.0 500 AT93C46-10PI-2.5
AT93C46-10SI-2.5
AT93C46R-10SI-2.5
AT93C46W-10SI-2.5
AT93C46-10TI-2.5
8P3
8S1
8S1
8S2
8T
Industrial
(-40°C to 85°C)
10 80 0.1 250 AT93C46-10PC-1.8
AT93C46-10SC-1.8
AT93C46R-10SC-1.8
AT93C46W-10SC-1.8
AT93C46-10TC-1.8
8P3
8S1
8S1
8S2
8T
Commercial
(0°C to 70°C)
0.1 250 AT93C46-10PI-1.8
AT93C46-10SI-1.8
AT93C46R-10SI-1.8
AT93C46W-10SI-1.8
AT93C46-10TI-1.8
8P3
8S1
8S1
8S2
8T
Industrial
(-40°C to 85°C)
AT93C46 Ordering Information (Continued)
tWP (max)
(ms)
ICC (max)
(µA)
ISB (max)
(µA)
fMAX
(kHz) Ordering Code Package Operation Range
Package Type
8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8S2 8-lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC)
8T 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
Options
Blank Standard Operation (4.5V to 5.5V)
-2.7 Low Voltage (2.7V to 5.5V)
-2.5 Low Voltage (2.5V to 5.5V)
-1.8 Low Voltage (1.8V to 5.5V)
RRotated Pinout
AT93C46/56/57/66
12
AT93C56 Ordering Information
tWP (max)
(ms)
ICC (max)
(µA)
ISB (max)
(µA)
fMAX
(kHz) Ordering Code Package Operation Range
10 2000 30.0 2000 AT93C56-10PC
AT93C56-10SC
AT93C56W-10SC
8P3
8S1
8S2
Commercial
(0°C to 70°C)
30.0 2000 AT93C56-10PI
AT93C56-10SI
AT93C56W-10SI
8P3
8S1
8S2
Industrial
(-40°C to 85°C)
10 800 10.0 1000 AT93C56-10PC-2.7
AT93C56-10SC-2.7
AT93C56W-10SC-2.7
8P3
8S1
8S2
Commercial
(0°C to 70°C)
10.0 1000 AT93C56-10PI-2.7
AT93C56-10SI-2.7
AT93C56W-10SI-2.7
8P3
8S1
8S2
Industrial
(-40°C to 85°C)
10 600 10.0 500 AT93C56-10PC-2.5
AT93C56-10SC-2.5
AT93C56W-10SC-2.5
8P3
8S1
8S2
Commercial
(0°C to 70°C)
10.0 500 AT93C56-10PI-2.5
AT93C56-10SI-2.5
AT93C56W-10SI-2.5
8P3
8S1
8S2
Industrial
(-40°C to 85°C)
Package Type
8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8S2 8-lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC)
Options
Blank Standard Operation (4.5V to 5.5V)
-2.7 Low Voltage (2.7V to 5.5V)
-2.5 Low Voltage (2.5V to 5.5V)
AT93C46/56/57/66
13
AT93C57 Ordering Information
tWP (max)
(ms)
ICC (max)
(µA)
ISB (max)
(µA)
fMAX
(kHz) Ordering Code Package Operation Range
10 2000 30.0 2000 AT93C57-10PC
AT93C57-10SC
AT93C57W-10SC
8P3
8S1
8S2
Commercial
(0°C to 70°C)
30.0 2000 AT93C57-10PI
AT93C57-10SI
AT93C57W-10SI
8P3
8S1
8S2
Industrial
(-40°C to 85°C)
10 800 10.0 1000 AT93C57-10PC-2.7
AT93C57-10SC-2.7
AT93C57W-10SC-2.7
8P3
8S1
8S2
Commercial
(0°C to 70°C)
10.0 1000 AT93C57-10PI-2.7
AT93C57-10SI-2.7
AT93C57W-10SI-2.7
8P3
8S1
8S2
Industrial
(-40°C to 85°C)
Package Type
8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8S2 8-lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC)
Options
Blank Standard Operation (4.5V to 5.5V)
-2.7 Low Voltage (2.7V to 5.5V)
-2.5 Low Voltage (2.5V to 5.5V)
AT93C46/56/57/66
14
AT93C66 Ordering Information
tWP (max)
(ms)
ICC (max)
(µA)
ISB (max)
(µA)
fMAX
(kHz) Ordering Code Package Operation Range
10 2000 30.0 2000 AT93C66-10PC
AT93C66-10SC
AT93C66W-10SC
AT93C66-10TC
8P3
8S1
8S2
8T
Commercial
(0°C to 70°C)
30.0 2000 AT93C66-10PI
AT93C66-10SI
AT93C66W-10SI
AT93C66-10TI
8P3
8S1
8S2
8T
Industrial
(-40°C to 85°C)
10 800 10.0 1000 AT93C66-10PC-2.7
AT93C66-10SC-2.7
AT93C66W-10SC-2.7
AT93C66-10TC-2.7
8P3
8S1
8S2
8T
Commercial
(0°C to 70°C)
10.0 1000 AT93C66-10PI-2.7
AT93C66-10SI-2.7
AT93C66W-10SI-2.7
AT93C66-10TI-2.7
8P3
8S1
8S2
8T
Industrial
(-40°C to 85°C)
10 600 10.0 500 AT93C66-10PC-2.5
AT93C66-10SC-2.5
AT93C66W-10SC-2.5
AT93C66-10TC-2.5
8P3
8S1
8S2
8T
Commercial
(0°C to 70°C)
10.0 500 AT93C66-10PI-2.5
AT93C66-10SI-2.5
AT93C66W-10SI-2.5
AT93C66-10TI-2.5
8P3
8S1
8S2
8T
Industrial
(-40°C to 85°C)
Package Type
8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8S2 8-lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC)
8T 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
Options
Blank Standard Operation (4.5V to 5.5V)
-2.7 Low Voltage (2.7V to 5.5V)
-2.5 Low Voltage (2.5V to 5.5V)
AT93C46/56/57/66
15
Packaging Information
.400 (10.16)
.355 (9.02)
PIN
1
.280 (7.11)
.240 (6.10)
.037 (.940)
.027 (.690)
.300 (7.62) REF
.210 (5.33) MAX
SEATING
PLANE
.100 (2.54) BSC
.015 (.380) MIN
.022 (.559)
.014 (.356)
.150 (3.81)
.115 (2.92)
.070 (1.78)
.045 (1.14)
.325 (8.26)
.300 (7.62)
0
15 REF
.430 (10.9) MAX
.012 (.305)
.008 (.203)
.020 (.508)
.013 (.330)
PIN 1
.157 (3.99)
.150 (3.81)
.244 (6.20)
.228 (5.79)
.050 (1.27) BSC
.196 (4.98)
.189 (4.80)
.068 (1.73)
.053 (1.35)
.010 (.254)
.004 (.102)
0
8REF .010 (.254)
.007 (.203)
.050 (1.27)
.016 (.406)
.020 (.508)
.012 (.305)
.213 (5.41)
.205 (5.21)
.330 (8.38)
.300 (7.62)
PIN 1
.050 (1.27) BSC
.212 (5.38)
.203 (5.16)
.080 (2.03)
.070 (1.78)
.013 (.330)
.004 (.102)
0
8REF .010 (.254)
.007 (.178)
.035 (.889)
.020 (.508)
*Controlling dimension: millimeters
6.50 (.256)
6.25 (.246)
0.30 (.012)
0.19 (.008)
.65 (.026) BSC
1.05 (.041)
0.80 (.033)
3.10 (.122)
4.5 (.177)
2.90 (.114)
4.3 (.169)
0.15 (.006)
0.05 (.002)
1.20 (.047) MAX
0.20 (.008)
0.75 (.030)
0.09 (.004)
0.45 (.018)
0
8REF
PIN 1
8P3, 8-pin, 0.300" Wide,
Plastic Dual Inline Package (PDIP)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-001 BA
8S1, 8-lead, 0.150" Wide,
Plastic Gull Wing Small Outline (JEDEC SOIC)
Dimensions in Inches and (Millimeters)
8S2, 8-lead, 0.200" Wide,
Plastic Gull Wing Small Outline (EIAJ SOIC)
Dimensions in Inches and (Millimeters)
8T, 8-lead, 0.170" Wide,
Thin Shrink Small Outline Package (TSSOP)
Dimensions in Millimeters and (Inches)*
© Atmel Corporation 1999.
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard war-
ranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for
any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without
notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual prop-
erty of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are
not authorized for use as critical components in life support devices or systems.
Marks bearing ® and/or ™ are registered trademarks and trademarks of Atmel Corporation.
Terms and product names in this document may be trademarks of others.
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0172L–10/99/xM
