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September 2002

s

MEDIUM SPEED OPERATION :

8 MHz (Typ.) at 10V

s

SYNCHRONOUS INTERNAL CARRY

PROPAGATION

s

RESET AND PRESET CAPABILITY

s

STANDARDIZED SYMMETRICAL OUTPUT

CHARACTERISTICS

s

QUIESCENT CURRENT SPECIF. UP TO 20V

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

HCF4510B is a monolithic integrated circuit

fabricated

in

Metal

Oxide

Semiconductor

technology available in DIP package.

It

is

a

PRESETTABLE

BCD

UP/DOWN

COUNTER

consists

of

four

synchronously

clocked D-type flip-flops (with a gating structure to

provide T-type flip-flop capability) connected as a

counter. This counter can be cleared by a high

level on the RESET line, and can be preset to any

binary number present on the jam inputs by a high

level on the PRESET ENABLE line. This device

will count out of non-BCD counter states in a

maximum of two clock pulses in the up mode and

a maximum of four clock pulses in the down mode.

If the CARRY IN input is held low, the counter

advances up or down on each positive going clock

transition.

Synchronous

cascading

is

accomplished by connecting all clock inputs in

parallel and connecting the CARRY OUT of a less

significant stage to the CARRY IN of a more

significant stage. HCF4510B can be cascaded in

the ripple mode by connecting all clock inputs in

parallel and connecting the CARRY OUT to the

clock of the next stage. If the UP/DOWN input

changes during a terminal count, the CARRY OUT

must be gated with the clock, and the UP/DOWN

input must change while the clock is high. This

method provides a clean clock signal to the

subsequent counting stage.

HCF4510B

PRESETTABLE BCD UP/DOWN COUNTER

PIN CONNECTION

ORDER CODES

PACKAGE

TUBE

T & R

DIP

HCF4510BEY

DIP