1CY74FCT162374T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
CY74FCT16374T
CY74FCT162374T
SCCS055 - August 1994 - Revised March 2000
16-Bit Registers
Features
Functional Description
• FCT-E speed at 3.7 ns
• Power-off disable outputs permits live insertion
• 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
• Industrial temperature range of −40˚C to +85˚C
• VCC = 5V ± 10%
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. The output buffers are designed with
power-off disable feature that allows live insertion of boards.
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.
CY74FCT16374T Features:
• 64 mA sink current, 32 mA source current
• Typical VOLP (ground bounce) <1.0V at VCC = 5V,
TA = 25˚C
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 © 2000, Texas Instruments Incorporated