HEF4059BU
DATA SH EET
Product specification
File under Integrated Circuits, IC04
January 1995
INTEGRATED CIRCUITS
HEF4059B
LSI
Programmable divide-by-n 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
Programmable divide-by-n counter
HEF4059B
LSI
DESCRIPTION
The HEF4059B is a divide-by-n counter which can be
programmed to divide an input frequency by any number
n
from 3 to 15 999. The output signal is a one clock-cycle
wide pulse and occurs at a rate equal to the input
frequency divided by
n
. The single output (O) has TTL
drive capability. The down counter is preset by means of
16 jam inputs (J1 to J16); continued on next page.
Fig.1 Functional block diagram.
FAMILY DATA, IDDLIMITS category LSI
See Family Specifications
Fig.2 Pinning diagram.
PINNING
CP clock input
K
a
, Kb, K
c
mode select inputs
J
1
to J
16
programmable jam inputs (BCD)
EL latch enable input
O divide-by-n output
HEF4059BP(N): 24-lead DIL; plastic (SOT101-1)
HEF4059BD(F): 24-lead DIL; ceramic (cerdip) (SOT94)
HEF4059BT(D): 24-lead SO; plastic (SOT137-1)
( ): Package Designator North America
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