Philips HEF4017BPB, HEF4017BP, HEF4017BDB, HEF4017BD, HEF4017BU Datasheet

DATA SH EET

Product specification
File under Integrated Circuits, IC04

January 1995

INTEGRATED CIRCUITS

HEF4017B
MSI

5-stage Johnson counter

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

January 1995 2

Philips Semiconductors Product specification

5-stage Johnson counter

HEF4017B

MSI

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

5-9

),
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).

When cascading counters, the

O

5-9

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

A HIGH on MR resets the counter to zero
(O

o

= O

5-9

= HIGH; O1to O9= LOW) independent of the

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.

Fig.1 Functional 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

Fig.2 Pinning diagram.

PINNING

FAMILY DATA, I

DD

LIMITS category MSI

See Family Specifications

CP

0

clock input (LOW to HIGH triggered)

CP

1

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

0

to O

9

decoded outputs
O

5-9

carry output (active LOW)

January 1995 3

Philips Semiconductors Product specification

5-stage Johnson counter

HEF4017B

MSI

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Fig.3 Logic diagram.