CD4541 Datasheet, PDF (1/7 Pages) Unisonic Technologies – PROGRAMMABLE TIMER CMOS IC

UTC CD4541


PROGRAMMABLE TIMER
DESCRIPTION
The UTC CD4541 programmable timer comprise a
16-stage binary counter, an integrated oscillator for use with
an external capacitor and two resistors, output control logic,
and a special power-on reset circuit. The counter divides the
oscillator frequency by any of 4 digitally controlled division
ratios.

FEATURES
*Operates at 2ⁿ frequency divider or as single transition
timer
*Increments on positive edge clock transitions
*Wide supply voltage range: 3.0V ~ 15V
*Built-in low power RC oscillator
*Oscillator frequency range ~ DC to 100 kHz
*External clock applied to Pin 3 can be used instead of
oscillator
*Available division ratios 2⁸, 2¹⁰, 2¹³, or 2¹⁶
*High noise immunity: 0.45 VDD (typ.)
*Master reset totally independent of automatic reset
operation
*Automatic reset initializes all counters when power turns on
*Q/Q select provides output logic level flexibility
*High output drive min. one TTL load
*Maximum input leakage 1DŽA at 15V over full temperature
range
CMOS IC
SOP-14
DIP-14
*Pb-free plating product number: CD4541L
PIN CONFIGURATION
Rtc ¹
Ctc 2
Rs 3
N.C. 4
AR 5
MR 6
Vss 7
14 ^VDD
13 B
12 A
11 N.C.
10 MODE
9 Q/Q SELECT
8Q
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
www.unisonic.com.tw
QW-R502-037,A