1CY74FCT162374T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modi鏗乪d to remove devices not offered.
CY74FCT16374T
CY74FCT162374T
SCCS055C - August 1994 - Revised September 2001
16-Bit Registers
Functional Description
CY74FCT16374T and CY74FCT162374T are 16-bit D-type
registers designed for use as buffered registers in high-speed,
low power bus applications. These devices can be used as two
independent 8-bit registers or as a single 16-bit register by
connecting the output Enable (OE) and Clock (CLK) 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 CY74FCT16374T is ideally suited for driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162374T 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
CY74FCT162374T 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%
CY74FCT16374T 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
CY74FCT162374T 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
Pin Configuration
SSOP/TSSOP
Top View
1
OE
1
O
1
1
O
2
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
CLK
1
D
1
1
D
2
1
OE
2
OE
GND
1
O
3
1
O
4
V
CC
1
O
5
2
O
1
1
O
6
GND
1
D
3
1
D
4
1
CLK
1
D
1
2
CLK
D
1
O
1
2
D
1
D
C
V
CC
1
D
5
1
D
6
C
GND
1
O
7
1
O
8
2
O
1
GND
1
D
7
1
D
8
2
D
1
2
D
2
TO 7 OTHER CHANNELS
FCT162374-1
TO 7 OTHER CHANNELS
FCT162374-2
2
O
2
GND
2
O
3
2
O
4
GND
2
D
3
2
D
4
V
CC
2
O
5
2
O
6
V
CC
2
D
5
2
D
6
GND
2
O
7
2
O
8
2
OE
GND
2
D
7
2
D
8
2
CLK
FCT162374-3
Copyright
漏
2001, Texas Instruments Incorporated
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