83CXXX

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

2 of 5

www.unisonic.com.tw

QW-R502-353.c



MARKING INFORMATION

PACKAGE

VOLTAGE CODE

MARKING

SOT-143

B: 2.93V

C: 3.08V



PIN CONFIGURATION



PIN DESCRIPTION

PIN NO

PIN NAME

DESCRIPTION

1

GND

Ground

2

RESET

3

MR

Manual reset input. A logic low on MR asserts reset. Reset remains asserted as

long as MR is low and for at least 140ms after MR returns high, This active-low

input has an internal 20kΩ pull-up resistor. It can be driven from a TTL or

CMOS-logic line, or shorted to ground with a switch. Leave open if unused.

4

Supply voltage (+5V, +3.3V, +3.0V)