Pin Functions

3

Pin Name

Pin No.

Description

GND

1

IC Ground Pin.

RESET

2

RESET goes low if either VCC falls below the supply reset threshold or if MR is

asserted. RESET remains asserted for one reset timeout period 1100ms min.) after

both VCC exceeds the supply reset threshold and MR is deasserted.

MR

3

Manual reset input. A logic low on MR forces a reset. The reset will remain asserted

as long as MR is held low and for one reset timeout period (1100ms) min.) after MR

goes high. This input can be shorted to ground via a switch or driven from CMOS or

TTl logic. Pulled high internally through a 20k

Ω resistor. Float if unused.

VCC

4

Power supply input.

MIC8115 Microprocessor Reset Circuit