1/13

October 2002

s

s

LAST 16 STAGES SELECTABLE BY BCD

SELECT CODE

s

GROUP SELECT INDICATES ONE OR

MORE PRIORITY INPUTS

s

QUIESCENT CURRENT SPECIFIED UP TO

20V

s

STANDARDIZED SYMMETRICAL OUTPUT

CHARACTERISTICS

s

5V, 10V AND 15V PARAMETRIC RATINGS

s

INPUT LEAKAGE CURRENT

s

100% TESTED FOR QUIESCENT CURRENT

s

MEETS ALL REQUIREMENTS OF JEDEC

JESD13B "STANDARD SPECIFICATIONS

FOR DESCRIPTION OF B SERIES CMOS

DEVICES"

DESCRIPTION

HCF4536B is a monolithic integrated circuit

fabricated

in

Metal

Oxide

Semiconductor

technology available in DIP package.

HCF4536B is a programmable timer consisting of

24 ripple-binary counter stages. The salient

feature of this device is its flexibility. The device

bypassed to allow an output, selectable by a 4-bit

code, from any one of the remaining 16 stages. It

can be driven by an external clock or an RC

oscillator that can be constructed using on-chip

components. Input IN1 serves as either the

external clock input or the input to the on-chip RC

oscillator. OUT1

and

OUT2 are connection

terminals for the external RC components. In

addition, an on-chip monostable circuit is provided

to allow a variable pulse width output. Various

timing

functions

can

be

achieved

using

combinations of these capabilities. A logic "1" on

the 8-BYPASS input enables a bypass of the first

8 stages and makes stage 9 the first counter stage

of the last 16 stages. Selection of 1 of 16 outputs

is accomplished by the decoder and the BCD

inputs A, B, C, and D. MONO IN is the timing input

HCF4536B

PROGRAMMABLE TIMER

PIN CONNECTION

ORDER CODES

PACKAGE

TUBE

T & R

DIP

HCF4536BEY

DIP