Philips hef4017b DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

For a complete data sheet, please also download:

•The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC

•The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC

HEF4017B
MSI

5-stage Johnson counter

Product specification
File under Integrated Circuits, IC04

January 1995

Philips Semiconductors Product specification

5-stage Johnson counter

DESCRIPTION

The HEF4017B is a 5-stage Johnson decade counter with
ten spike-free decoded active HIGH outputs (Ooto O9), an
active LOW output from the most significant flip-flop (O
active HIGH and active LOW clock inputs (CP0, CP1) and
an overriding asynchronous master reset input (MR).

The counter is advanced by either a LOW to HIGH
transition at CP0while CP1is LOW or a HIGH to LOW
transition at CP1while CP0is HIGH (see also function
table).

O

When cascading counters, the

output, which is LOW

5-9

while the counter is in states 5, 6, 7, 8 and 9, can be used
to drive the CP0input of the next counter.

5-9

HEF4017B

A HIGH on MR resets the counter to zero

= O

(O

o

clock inputs (CP0, CP1).
Automatic code correction of the counter is provided by an

),

internal circuit: following any illegal code the counter
returns to a proper counting mode within 11 clock pulses.

Schmitt-trigger action in the clock input makes the circuit
highly tolerant to slower clock rise and fall times.

= HIGH; O1to O9= LOW) independent of the

5-9

MSI

Fig.1 Functional diagram.

Fig.2 Pinning diagram.

HEF4017BP(N): 16-lead DIL; plastic (SOT38-1)
HEF4017BD(F): 16-lead DIL; ceramic (cerdip) (SOT74)
HEF4017BT(D): 16-lead SO; plastic (SOT109-1)
( ): Package Designator North America

January 1995 2

PINNING

CP
CP

0
1

clock input (LOW to HIGH triggered)

clock input (HIGH to LOW triggered)
MR master reset input
O

to O

0

9

O

5-9

FAMILY DATA, I

decoded outputs

carry output (active LOW)

LIMITS category MSI

DD

See Family Specifications

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January 1995 3

Philips Semiconductors Product specification

5-stage Johnson counter

Fig.3 Logic diagram.

HEF4017B

MSI