October 1987

Revised January 1999

© 1999 Fairchild Semiconductor Corporation

DS005988.prf

www.fairchildsemi.com

CD40192BC • CD40193BC

Synchronous 4-Bit Up/Down Decade Counter •

Synchronous 4-Bit Up/Down Binary Counter

General Description

The CD40192BC and CD40193BC up/down counters are

monolithic complementary MOS (CMOS) integrated cir-

cuits. The CD40192BC is a BCD counter, while the

CD40193BC is a binary counter.

Counting up and counting down is performed by two count

inputs, one being held HIGH while the other is clocked. The

outputs change on the positive-going transition of this

clock.

These counters feature preset inputs that are enabled

when load is a logical “0” and a clear which forces all out-

puts to “0” when it is at logical “1”. The counters also have

carry and borrow outputs so that they can be cascaded

using no external circuitry.

All inputs are protected against damage due to static dis-

Features

s Wide supply voltage range:

3V to 15V

s Low power TTL compatibility: Fan out of 2 driving 74L

or 1 driving 74LS

s Carry and borrow outputs for easy expansion to N-bit by

cascading

s Asynchronous clear

s Equivalent to: MM74C192 and MM74C193

Ordering Code:

Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Connection Diagram

Pin Assignments for DIP and SOIC

Top View

Cascading Packages

Order Number

Package Number

Package Description

CD40192BCN

N16E

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

CD40193BCN

N16E

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

CD40193BCM

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body