Datasheet

December 1990 3
Philips Semiconductors Product specification
Dual 4-bit binary ripple counter 74HC/HCT393
PIN DESCRIPTION
PIN NO. SYMBOL NAME AND FUNCTION
1, 13 1
CP, 2CP clock inputs (HIGH-to-LOW, edge-triggered)
2, 12 1MR, 2MR asynchronous master reset inputs (active HIGH)
3, 4, 5, 6, 11, 10, 9, 8 1Q
0
to 1Q
3
, 2Q
0
to 2Q
3
flip-flop outputs
7 GND ground (0 V)
14 V
CC
positive supply voltage
Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.