Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modi鏗乪d to remove devices not offered.
CY74FCT16373T
CY74FCT162373T
SCCS054B - August 1994 - Revised September 2001
16-Bit Latches
Functional Description
CY74FCT16373T and CY74FCT162373T are 16-bit D-type
latches designed for use in bus applications requiring high
speed and low power. These devices can be used as two
independent 8-bit latches or as a single 16-bit latch by
connecting the Output Enable (OE) and Latch (LE) inputs.
Flow-through pinout and small shrink packaging aid in
simplifying board layout.
This device is fully speci鏗乪d for partial-power-down
applications using I
off
. The I
off
circuitry disables the outputs,
preventing damaging current back鏗俹w through the device
when it is powered down.
The CY74FCT16373T is ideally suited for driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162373T has 24-mA balanced output drivers
with current limiting resistors in the outputs. This reduces the
need for external terminating resistors and provides for
minimal undershoot and reduced ground bounce. The
CY74FCT162373T is ideal for driving transmission lines.
Features
鈥?I
off
supports partial-power-down mode operation
鈥?Edge-rate control circuitry for signi鏗乧antly improved
noise characteristics
鈥?Typical output skew < 250 ps
鈥?ESD > 2000V
鈥?TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)
packages
鈥?Industrial temperature range of
鈭?0藲C
to +85藲C
鈥?V
CC
= 5V
鹵
10%
CY74FCT16373T Features:
鈥?64 mA sink current, 32 mA source current
鈥?Typical V
OLP
(ground bounce) <1.0V at V
CC
= 5V,
T
A
= 25藲C
CY74FCT162373T Features:
鈥?Balanced 24 mA output drivers
鈥?Reduced system switching noise
鈥?Typical V
OLP
(ground bounce) <0.6V at V
CC
= 5V,
T
A
= 25藲C
Logic Block Diagrams
1
OE
Pin Configuration
SSOP/TSSOP
Top View
1
OE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
LE
1
D
1
1
D
2
1
LE
1
D
1
1
O
1
D
1
O
1
1
O
2
GND
1
O
3
1
O
4
V
CC
1
O
5
1
O
6
GND
1
D
3
1
D
4
C
V
CC
1
D
5
1
D
6
TO 7 OTHER CHANNELS
FCT162373-1
2
OE
GND
1
O
7
1
O
8
2
O
1
2
O
2
GND
1
D
7
1
D
8
2
D
1
2
D
2
2
LE
2
D
1
GND
D
2
O
1
2
O
3
2
O
4
V
CC
2
O
5
2
O
6
GND
2
D
3
2
D
4
C
V
CC
2
D
5
2
D
6
GND
GND
2
D
7
2
D
8
2
LE
TO 7 OTHER CHANNELS
FCT162373-2
2
O
7
2
O
8
2
OE
FCT162373-3
Copyright
漏
2001, Texas Instruments Incorporated
1
2
3
4
5
6
7
