INDUSTRIAL TEMPERATURE RANGE
IDT74LVC16344A
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
1OCTOBER 2008INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 2004 Integrated Device Technology, Inc. DSC-4576/5
FEATURES:
• Typical tSK(o) (Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
•VCC = 3.3V ± 0.3V, Normal Range
•VCC = 2.7V to 3.6V, Extended Range
• CMOS power levels (0.4μμ
μμ
μ W typ. static)
• All inputs, outputs, and I/O are 5V tolerant
• Supports hot insertion
• Available in SSOP and TSSOP packages
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
IDT74LVC16344A
DESCRIPTION:
The LVC16344A is a 1:4 address/clock driver built using advanced dual
metal CMOS technology. This high speed, low power device provides the
ability to fanout to memory arrays. Eight banks, each with a fanout of 4, and
3-state control provide efficient address distribution. One or more banks may
be used for clock distribution.
All pins of this address line driver can be driven from either 3.3V or 5V
devices. This feature allows the use of this device as a translator in a mixed
3.3V/5V supply system.
The LVC16344A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
3.3V CMOS ONE-TO-FOUR
ADDRESS/CLOCK DRIVER
WITH 3-STATE OUTPUTS
AND 5 VOLT TOLERANT I/O
A1
A2
B11
OE1
B24
B21
B14
A7
A8
B71
OE4
B84
B81
B74
A3
A4
B31
OE2
B44
B41
B34
A5
A6
B51
OE3
B64
B61
B54
8
14
13
9
6
2
36
29
34
30
41
37
42
56
48
44
55
51
43
49
16
20
23
27
15
21
28
1
INDUSTRIAL TEMPERATURE RANGE
2
IDT74LVC16344A
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
SSOP/ TSSOP
TOP VIEW
PIN CONFIGURATION
NOTES:
1 . H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
Inputs Outputs
OEx Ax Bxx
LLL
LHH
HXZ
FUNCTION TABLE(1)
Pin Names Description
OEx 3-State Output Enable Inputs (Active LOW)
Ax Data Inputs
Bxx 3-State Outputs
PIN DESCRIPTION
Symbol Description Max Unit
VTERM Terminal Voltage with Respect to GND –0.5 to +6.5 V
TSTG Storage Temperature –65 to +150 °C
IOUT DC Output Current –50 to +50 mA
IIK Continuous Clamp Current, –50 mA
IOK VI < 0 or VO < 0
ICC Continuous Current through each ±100 mA
ISS VCC or GND
ABSOLUTE MAXIMUM RATINGS(1)
NOTE:
1 . Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
OE1
B12
GND
B13
VCC
GND
GND
VCC
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
48
49
50
51
52
53
54
55
561
GND 25
26
27
28
32
31
30
29
B11
B14
B21
B22
A1
B23
A2
A3
B31
B32
B33
B34
A4
B41
B42
B43
B44
OE2
OE4
B82
GND
B83
VCC
GND
GND
VCC
GND
B81
B84
A8
B71
B72
B73
A7
A6
B61
B62
B63
B64
A5
B51
B52
B53
B54
OE3
B74
B24
NOTE:
1. As applicable to the device type.
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 4.5 6 pF
COUT Output Capacitance VOUT = 0V 6.5 8 pF
CI/O I/O Port Capacitance VIN = 0V 6.5 8 pF
CAPACITANCE (TA = +25°C, F = 1.0MHz )
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC16344A
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
3
Symbol Parameter Test Conditions Min. Typ.(1) Max. Unit
VIH Input HIGH Voltage Level VCC = 2.3V to 2.7V 1.7 — — V
VCC = 2.7V to 3.6V 2 — —
VIL Input LOW Voltage Level VCC = 2.3V to 2.7V — — 0.7 V
VCC = 2.7V to 3.6V — — 0.8
IIH Input Leakage Current VCC = 3.6V VI = 0 to 5.5V — — ±5µA
IIL
IOZH High Impedance Output Current VCC = 3.6V VO = 0 to 5.5V — — ±10 µA
IOZL (3-State Output pins)
IOFF Input/Output Power Off Leakage VCC = 0V, VIN or VO ≤ 5.5V — — ±50 µA
VIK Clamp Diode Voltage VCC = 2.3V, IIN = –18mA — –0.7 –1.2 V
VHInput Hysteresis VCC = 3.3V — 100 — mV
ICCL Quiescent Power Supply Current VCC = 3.6V VIN = GND or VCC —— 10µA
ICCH
ICCZ 3.6 ≤ VIN ≤ 5.5V(2) —— 10
ΔICC Quiescent Power Supply Current One input at VCC - 0.6V, other inputs at VCC or GND — — 500 µA
Variation
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: TA = –40°C to +85°C
NOTES:
1. Typical values are at VCC = 3.3V, +25°C ambient.
2. This applies in the disabled state only.
NOTE:
1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.
TA = – 40°C to + 85°C.
OUTPUT DRIVE CHARACTERISTICS
Symbol Parameter Test Conditions(1) Min. Max. Unit
VOH Output HIGH Voltage VCC = 2.3V to 3.6V IOH = – 0.1mA VCC – 0.2 — V
VCC = 2.3V IOH = – 6mA 2 —
VCC = 2.3V IOH = – 12mA 1 .7 —
VCC = 2.7V 2.2 —
VCC = 3V 2.4 —
VCC = 3V IOH = – 24mA 2 .2 —
VOL Output LOW Voltage VCC = 2.3V to 3.6V IOL = 0.1mA — 0.2 V
VCC = 2.3V IOL = 6mA — 0.4
IOL = 12mA — 0.7
VCC = 2.7V IOL = 12mA — 0.4
VCC = 3V IOL = 24mA — 0.55
INDUSTRIAL TEMPERATURE RANGE
4
IDT74LVC16344A
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
OPERA TING CHARACTERISTICS, VCC = 3.3V ± 0.3V, TA = 25°C
Symbol Parameter Test Conditions Typical Unit
CPD Power Dissipation Capacitance per Buffer/Driver Outputs enabled CL = 0pF, f = 10Mhz pF
CPD Power Dissipation Capacitance per Buffer/Driver Outputs disabled
SWITCHING CHARACTERISTICS(1)
VCC = 2.7V VCC = 3.3V ± 0.3V
Symbol Parameter Min. Max. Min. Max. Unit
tPLH Propagation Delay 1.5 4.4 ns
tPHL Ax to Bxx
tPZH Output Enable Time 1.5 5.8 ns
tPZL OEx to Bxx
tPHZ Output Disable Time 1.5 5.2 ns
tPLZ OEx to Bxx
tSK(b) Skew between outputs of same bank and same package —350 ps
(same transition)
tSK(o) Skew between outputs of all banks and same package —500 ps
(A1 through A8 tied together)(2)
NOTES:
1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.
2. Skew between any two outputs of the same package and switching in the same direction.
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC16344A
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
5
Open
VLOAD
GND
VCC
Pulse
Generator D.U.T.
500Ω
500Ω
CL
RT
VIN VOUT
(1, 2)
LVC Link
INPUT
VIH
0V
VOH
VOL
tPLH1
tSK (x)
OUTPUT 1
OUTPUT 2
tPHL1
tSK (x)
tPLH2 tPHL2
VT
VT
VOH
VT
VOL
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1
LVC Link
SAME PHASE
INPUT TRANSITION
OPPOSITE PHASE
INPUT TRANSITION
0V
0V
VOH
VOL
tPLH tPHL
tPHL
tPLH
OUTPUT
VIH
VT
VT
VIH
VT
LVC Link
DATA
INPUT 0V
0V
0V
0V
tREM
TIMING
INPUT
ASYNCHRONOUS
CONTROL
SYNCHRONOUS
CONTROL
tSU tH
tSU tH
VIH
VT
VIH
VT
VIH
VT
VIH
VT
LVC Link
LOW-HIGH-LOW
PULSE
HIGH-LOW-HIGH
PULSE
VT
tW
VT
LVC Link
CONTROL
INPUT
tPLZ 0V
OUTPUT
NORMALLY
LOW tPZH
0V
SWITCH
CLOSED
OUTPUT
NORMALLY
HIGH
ENABLE DISABLE
SWITCH
OPEN
tPHZ
0V
VOL+VLZ
VOH
VT
VT
tPZL
VLOAD/2 VLOAD/2
VIH
VT
VOL
VOH-VHZ
LVC Link
TEST CIRCUITS AND WAVEFORMS
Propagation Delay
Test Circuit for All Outputs
Enable and Disable Times
Set-up, Hold, and Release Times
NOTES:
1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs.
2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns.
Output Skew - tSK(X)
Pulse Width
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Symbol VCC(1)= 3.3V±0.3V VCC(1)= 2.7V VCC(2)= 2.5V±0.2V Unit
VLOAD 6 6 2 x Vcc V
VIH 2.7 2.7 Vcc V
VT1.5 1.5 Vcc / 2 V
VLZ 300 300 150 mV
VHZ 300 300 150 mV
CL50 50 30 pF
TEST CONDITIONS
SWITCH POSITION
Test Switch
Open Drain
Disable Low VLOAD
Enable Low
Disable High GND
Enable High
All Other Tests Open
INDUSTRIAL TEMPERATURE RANGE
6
IDT74LVC16344A
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
ORDERING INFORMATION
XX LVC XXXX XX
PackageDevice Type
Temp. Range
PV
PVG
PA
PAG
16
74
Shrink Small Outline Package
SSOP - Green
Thin Shrink Small Outline Package
TSSOP - Green
One-to-Four Address/Clock Driver
-40°C to +85°C
XXX
FamilyBus-Hold
344A
No Bus-hold
Double-Density, ±24mA
Blank
CORPORATE HEADQUARTERS for SALES: for Tech Support:
6024 Silver Creek Valley Road 800-345-7015 or 408-284-8200 logichelp@idt.com
San Jose, CA 95138 fax: 408-284-2775
www.idt.com
