74HC/HCT161 Philips Semiconductors (Acquired by NXP), 74HC/HCT161 Datasheet - Page 3

• Manufacturer Part Number: 74HC/HCT161
• Description: Presettable Synchronous 4-bit Binary Counter; Asynchronous Reset
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
ORDERING INFORMATION
See
PIN DESCRIPTION
December 1990
PIN NO.
1
2
3, 4, 5, 6
7
8
9
10
14, 13, 12, 11
15
16
Presettable synchronous 4-bit binary
counter; asynchronous reset
“74HC/HCT/HCU/HCMOS Logic Package Information”
Fig.1 Pin configuration.
SYMBOL
MR
CP
D
CEP
GND
PE
CET
Q
TC
V
CC
0
0
to D
to Q
3
3
NAME AND FUNCTION
asynchronous master reset (active LOW)
clock input (LOW-to-HIGH, edge-triggered)
data inputs
count enable input
ground (0 V)
parallel enable input (active LOW)
count enable carry input
flip-flop outputs
terminal count output
positive supply voltage
Fig.2 Logic symbol.
3
.
Fig.3 IEC logic symbol.
74HC/HCT161
Product specification