HCC4541B Datasheet, PDF (1/10 Pages) STMicroelectronics – PROGRAMMABLE TIMER

HCF4541B
PROGRAMMABLE TIMER
s 16 STAGE BINARY COUNTER
s LOW SYMMETR. OUTPUT RESISTANCE,
TYPICALLY 100Ω at V_DD = 15V
s OSCILLATOR FREQUENCY RANGE :
DC to 100KHz
s AUTO OR MASTER RESET DISABLES
OSCILLATOR DURING RESET TO REDUCE
POWER DISSIPATION
s OPERATES WITH VERY SLOW CLOCK
RISE AND FALL TIMES
s BUILT-IN LOW-POWER RC OSCILLATOR
s EXTERNAL CLOCK (applied to pin 3) CAN
BE USED INSTEAD OF OSCILLATOR
s OPERATES AS 2ⁿ FREQUENCY DIVIDER
OR AS A SINGLE-TRANSITION TIMER
s Q/Q SELECT PROVIDES OUTPUT LOGIC
LEVEL FLEXIBILITY
s CAPABLE OF DRIVING SIX LOW POWER
TTL LOADS, THREE LOW POWER
SCHOTTKY LOADS, OR SIX HTL LOADS
OVER THE RATED TEMP. RANGE
s 5V, 10V AND 15V PARAMETRIC RATINGS
s 100% TESTED FOR QUIESCENT CURRENT
AT 20V
s MEETS ALL REQUIREMENTS OF JEDEC
JESD13B " STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DIP
SOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
HCF4541BEY
HCF4541BM1
T&R
HCF4541M013TR
DESCRIPTION
The HCF4541B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
This device is composed of a 16-stages binary
counter, an oscillator controlled by 2 external
resistors and a capacitor, an output control logic
and an automatic power-on reset circuit. The
counter varies on positive-edge clock transition
and it can be cleared by the MASTER RESET
input. The output from this timer is the Q or Q
output from the 8th, 13th, or 16th counter stage.
The choice of the stage depends on the time
PIN CONNECTION
September 2002
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