SGM708-RYS8GSLASHTR datasheet(4/13 Pages) SGMICRO

4 / 13 page

Low-Cost, Microprocessor

SGM708

Supervisory Circuit

DECEMBER 2017

SG Micro Corp

www.sg-micro.com

PIN CONFIGURATION

SGM708 (TOP VIEW)

SGM708

VCC

GND

PFI

PFO

RESET

SOIC-8

PIN DESCRIPTION

NAME

FUNCTION

Manual-Reset Input triggers a reset pulse when pulled below 0.8V. This active-low input has an internal

250μA (VCC = +5V) pull-up current. It can be driven from a TTL or CMOS logic line as well as shorted to

ground with a switch.

VCC

Power Supply Voltage that is monitored.

GND

0V Ground Reference for all signals.

PFI

Power-Fail Voltage Monitor Input. When PFI is less than 1.25V, PFO goes low. Connect PFI to GND or

VCC when not used.

PFO

Power-Fail Output goes low and sinks current when PFI is less than 1.25V; otherwise PFO stays high.

No Connect.

RESET

Active-Low Reset Output pulses low for 200ms when triggered, and stays low whenever VCC is below the

reset threshold (4.65V for SGM708-L, 4.40V for SGM708-M, 4.0V for SGM708-J, 3.08V for SGM708-T,

2.93V for SGM708-S and 2.63V for SGM708-R). It remains low for 200ms after VCC rises above the reset

threshold or MR goes from low to high.

RESET

Active-High Reset Output is the inverse of RESET . Whenever RESET is high, RESET is low, and vice

versa.

SGM708-RYS8G/TR Datasheet(PDF) 4 Page - SG Micro Corp