HD74AC393 Datasheet, PDF (1/10 Pages) Hitachi Semiconductor – Dual Modulo-16-Counter

HD74AC393
Dual Modulo-16-Counter
Description
The HD74AC393 contains a pair of high speed 4-stage ripple counters. Each half of the HD74AC393
operates as a modulo-16 binary divider, with the last three stages triggered in a ripple fashion. The flip-
flops are triggered by a High-to-Low transition of their CP inputs. Each half of each circuit type has a
Master Reset input which responds to a High signal by forcing all four outputs to the Low state.
Feature
• Outputs Source/Sink 24 mA
Pin Arrangement
CP 1
MR 2
Q0 3
Q1 4
Q2 5
Q3 6
GND 7
(Top view)
14 VCC
13 CP
12 MR
11 Q0
10 Q1
9 Q2
8 Q3