TO 7 OTHER CHANNELS
Truth Table
(1)
Inputs
D
N
H
L
X
X
CP
↑
↑
L
X
OE
L
L
L
H
Outputs
O
N
H
L
O
0
Z
V
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
1
2109876543212109876543210987654321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74LCX374
Fast CMOS 3.3V Octal D Flip-Flop
Product Features
•
•
•
•
•
•
•
•
•
Compatible with LVT
™
and FCT3 families of products
5V Tolerant inputs and outputs
2.0V - 3.6V V
CC
supply operation
Balanced sink and source output drives (±24mA)
Low ground bounce outputs
Power Down High Impedance inputs and outputs
Supports live insertion
Hysteresis on all inputs
ESD protection exceeds -
2000V, Human Body Mode
200V, Machine Mode
• Packages:
– 20-pin 173 mil -wide plastic TSSOP (L)
– 20-pin 150 mil- wide plastic QSOP (Q)
– 20-pin 300 mil -wide plastic SOIC (S)
Product Description
Pericom Semiconductor’s PI74LCX series of logic circuits are
produced using the Company’s advanced 0.6 CMOS technology,
achieving industry leading speed grades.
The PI74LCX374 is an 8-bit wide octal D-type flip flop designed with
a buffered common clock and buffered 3-state outputs. When
output enable (OE) is LOW, the outputs are enabled. When OE is
HIGH, the outputs are in the high impedance state. Input data
meeting the setup and hold time requirements of the D inputs is
transferred to the O outputs on the LOW-to-HIGH transition of the
clock input.
The PI74LCX374 can be driven from either 3.3V or 5.0V devices
allowing for the device to be used as a translator in a mixed 3.3V/5.0V
system.
Logic Block Diagram
OE
CP
D0
D
Q
CP
O
0
Product Pin Configuration
OE
O0
D0
D1
O1
O2
D2
D3
O3
GND
20
1
19
2
18
3
4
20-Pin
17
5
L, Q, S
16
15
6
14
7
13
8
12
9
11
10
V
CC
O7
D7
D6
O6
O5
D5
D4
O4
CP
Product Pin Description
Pin Name
OE
CP
D0- D7
O 0- O 7
GND
V
CC
De s cription
Output Enable Inputs (Active LOW)
Clock Pulse, LOW- to- HIGH Transition
Data Inputs
3- State Outputs
Ground
Power
Note:
1. H = High Voltage Level; X = Don’t Care
L = Low Voltage Level; Z = High Impedance
↑
= LOW-to-HIGH Transition;
O
0
= Previous O
0
before High-to-Low of CP
1
PS8570B
1/20/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
