PI74LPT374 Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Fast CMOS 3.3V Octal D Flip-Flop

PI74LPT374
Fast CMOS 3.3V Octal D Flip-Flop
Features
• Compatible with LCX™ and LVT™ families of products
• Supports 5V Tolerant Mixed Signal Mode Operation
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
Balanced drives (24mA sink and source)
• Low ground bounce outputs
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packaging:
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
Block Diagram
OE
CP
D0
D
O0
CP
TO 7 OTHER CHANNELS
Description
Pericom Semiconductor’s PI74LPT374 8-bit wide octal
resisters designed with eight D-type flip-flops, 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 PI74LPT374 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.
Pin Configuration
OE 1
O0 2
D0 3
D1 4
O1 5
O2 6
D2 7
D3 8
O3 9
GND 10
20 Vcc
19 O7
18 D7
17 D6
16 O6
15 O5
14 D5
13 D4
12 O4
11 CP
Truth Table⁽¹⁾
Inputs
DN
CP
OE
H
↑
L
L
↑
L
X
X
H
Note:
1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Z = High Impedance
Outputs
ON
H
L
Z
Pin Description
Pin Name
Description
OE
Output Enable Input (Active LOW)
CP
Clock Pulse, LOW-to-HIGH Transition
D7-D0
Data Inputs
O7-O0
3-State Outputs
GND
Ground
V_CC
Power
1
PS8503A 10/06/04