HCF4520B
DUAL BINARY UP COUNTER
s
s
s
s
s
s
s
s
MEDIUM SPEED OPERATION :
6MHz (Typ.) at 10V
POSITIVE -OR NEGATIVE- EDGE
TRIGGERING
SYNCHRONOUS INTERNAL CARRY
PROPAGATION
QUIESCENT CURRENT SPECIF. UP TO 20V
5V, 10V AND 15V PARAMETRIC RATINGS
INPUT LEAKAGE CURRENT
II = 100nA (MAX) AT VDD = 18V TA = 25°C
100% TESTED FOR QUIESCENT CURRENT
MEETS ALL REQUIREMENTS OF JEDEC
JESD13B "STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DESCRIPTION
HCF4520B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
HCF4520B, a Dual Binary Up Counter, consists of
two identical, internal 4-stage counters. The
counter stages are D-type Flip-Flops having
interchangeable Clock and Enable lines for
(s)
ct
DIP
SOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
HCF4520BEY
HCF4520BM1
s)
t(
T&R
uc
d
HCF4520M013TR
ro
P
incrementing on either the positive-going or
negative going transitions. For single-unit
operations the Enable input is maintained High
and the counter advances on each positive going
transition of the Clock. The counters are cleared
by high levels on their Reset lines. The counter
can be cascaded in the ripple mode by connecting
Q4 to the enable input of the subsequent counter
while the clock input of the latter is held low.
te
le
so
Ob
-
du
o
Pr
e
let
o
PIN CONNECTION
bs
O
October 2002
1/12