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Philips

HEF4017B Datasheet Preview

HEF4017B Datasheet

5-stage Johnson counter

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INTEGRATED CIRCUITS
DATA SHEET
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

HEF4017B Datasheet Preview

HEF4017B Datasheet

5-stage Johnson counter

No Preview Available !

Philips Semiconductors
5-stage Johnson counter
Product specification
HEF4017B
MSI
DESCRIPTION
The HEF4017B is a 5-stage Johnson decade counter with
ten spike-free decoded active HIGH outputs (Oo to O9), an
active LOW output from the most significant flip-flop (O5-9),
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 CP0 while CP1 is LOW or a HIGH to LOW
transition at CP1 while CP0 is HIGH (see also function
table).
When cascading counters, the O5-9 output, which is LOW
while the counter is in states 5, 6, 7, 8 and 9, can be used
to drive the CP0 input of the next counter.
A HIGH on MR resets the counter to zero
(Oo = O5-9 = HIGH; O1 to 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.
Fig.2 Pinning diagram.
PINNING
CP0
CP1
MR
O0 to O9
O5-9
clock input (LOW to HIGH triggered)
clock input (HIGH to LOW triggered)
master reset input
decoded outputs
carry output (active LOW)
FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
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


Part Number HEF4017B
Description 5-stage Johnson counter
Maker Philips
Total Page 8 Pages
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