1CY74FCT162374T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
CY74FCT16374T
CY74FCT162374T
SCCS055C - August 1994 - Revised September 2001
16-Bit Registers
Features
Functional Description
• Ioff supports partial-power-down mode operation
• Edge-rate control circuitry for significantly improved
noise characteristics
• Typical output skew < 250 ps
• ESD > 2000V
• TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)
packages
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 specified for partial-power-down
applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device
when it is powered down.
• Industrial temperature range of −40˚C to +85˚C
• VCC = 5V ± 10%
CY74FCT16374T Features:
The CY74FCT16374T is ideally suited for driving
high-capacitance loads and low-impedance backplanes.
• 64 mA sink current, 32 mA source current
• Typical VOLP (ground bounce) <1.0V at VCC = 5V,
TA = 25˚C
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.
CY74FCT162374T Features:
• Balanced 24 mA output drivers
• Reduced system switching noise
• Typical VOLP (ground bounce) <0.6V at VCC = 5V,
TA= 25˚C
Logic Block Diagrams
Pin Configuration
SSOP/TSSOP
Top View
1
2
3
4
48
47
46
OE
O
CLK
1
1
1
D
1
1
1
2
O
D
2
1
1
GND
O
GND
D
45
44
43
42
41
OE
OE
2
1
5
1
1
3
4
1
1
3
4
O
D
6
CLK
CLK
2
1
V
CC
V
CC
7
O
5
O
6
D
D
1
1
1
1
5
6
8
D
C
D
C
D
1
D
1
1
2
9
40
39
38
37
36
35
34
33
32
31
O
1
O
1
1
2
GND
O
GND
D
10
11
1
1
7
8
1
1
7
8
O
D
12
13
O
O
D
D
2
2
1
2
2
1
2
14
15
16
17
18
2
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
GND
GND
O
3
O
4
D
D
2
2
3
FCT162374-1
FCT162374-2
2
2
4
V
CC
V
CC
O
5
D
5
19
20
21
22
23
24
30
29
28
27
26
25
2
2
2
2
O
6
D
6
GND
O
GND
D
2
2
7
8
2
7
8
O
D
2
2
OE
CLK
2
FCT162374-3
Copyright © 2001, Texas Instruments Incorporated