1/8

September 2002

s

CLOCK FREQUENCY 12MHz (Typ.)

s

SCHMITT TRIGGER CLOCK INPUTS

ALLOWS OPERATION WITH VERY SLOW

CLOCK RISE AND FALL TIMES

s

THREE STATE OUTPUTS

s

QUIESCENT CURRENT SPECIFIED UP TO

20V

s

STANDARDIZED, SYMMETRICAL OUTPUT

CHARACTERISTCS

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

HCF4517B is a monolithic integrated circuit

fabricated

in

Metal

Oxide

Semiconductor

technology available in DIP package.

This device is a dual 64-stage static shift register

consisting of two independent registers each

having a clock, data, and write enable input and

outputs accessible by stages following the 16th,

32nd, 48th, and 64th stages. These stages also

serve as input points allowing data to be put in at

the 17th , 33rd, and 49th stages when the write

enable input is a logic 1 and the clock goes

through a low to high transition. The truth table

indicates how the clock and write enable inputs

control the operation of HCF4517B. Inputs at the

intermediate stages allow entry of 64-bits into the

register with 16 clock pulses. The 3-state outputs

permit connection of this device to an external

bus.

HCF4517B

DUAL 64 STAGE STATIC SHIFT REGISTER

PIN CONNECTION

ORDER CODES

PACKAGE

TUBE

T & R

DIP

HCF4517BEY

SOP

HCF4517BM1

HCF4517M013TR

DIP