© 2004 Fairchild Semiconductor Corporation

DS005950

www.fairchildsemi.com

October 1987

Revised January 2004

CD4017BC • CD4022BC

Decade Counter/Divider with 10 Decoded Outputs •

Divide-by-8 Counter/Divider with 8 Decoded Outputs

General Description

The CD4017BC is a 5-stage divide-by-10 Johnson counter

with 10 decoded outputs and a carry out bit.

The CD4022BC is a 4-stage divide-by-8 Johnson counter

with 8 decoded outputs and a carry-out bit.

These counters are cleared to their zero count by a logical

“1” on their reset line. These counters are advanced on the

positive edge of the clock signal when the clock enable sig-

nal is in the logical “0” state.

The configuration of the CD4017BC and CD4022BC per-

mits medium speed operation and assures a hazard free

counting sequence. The 10/8 decoded outputs are nor-

mally in the logical “0” state and go to the logical “1” state

only at their respective time slot. Each decoded output

remains high for 1 full clock cycle. The carry-out signal

completes a full cycle for every 10/8 clock input cycles and

is used as a ripple carry signal to any succeeding stages.

Features

s Wide supply voltage range: 3.0V to 15V

s Low power Fan out of 2 driving 74L

TTL compatibility:

or 1 driving 74LS

s Medium speed operation: 5.0 MHz (typ.)

s Low power: 10

µW (typ.)

s Fully static operation

Applications

• Automotive

• Instrumentation

• Medical electronics

• Alarm systems

• Industrial electronics

• Remote metering

Ordering Code:

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

Connection Diagrams

CD4017B

Top View

CD4022B

Top View

Order Number

Package Number

Package Description

CD4017BCM

M16A

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

CD4017BCN

N16E

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

CD4022BCM

M16A

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

CD4022BCN

N16E

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