CAT811LEUS-T データシートの表示（PDF） - Catalyst Semiconductor => Onsemi

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CAT811LEUS-T

4-Pin Microprocessor Power Supply Supervisors

Catalyst Semiconductor => Onsemi 

CAT811, CAT812

PIN DESCRIPTIONS

Pin Number

CAT811 CAT812

1

1

2

—

—

2

3

3

4

4

Name Description

GND Ground

RESET

RESET

Active LOW reset. RESET is asserted if VCC falls below the reset threshold

and remains low for at least 140ms after VCC rises above the reset threshold.

Active HIGH reset. RESET is asserted if VCC falls below the reset

threshold and remains high for at least 140ms after VCC rises above

the reset threshold.

MR

Manual Reset Input. A logic LOW on MR asserts RESET. RESET remains

active as long as MR is LOW and for 140ms after MR returns HIGH. The

active low input has an internal 20kΩ pull-up resistor. The input should be left

open if not used. It can be driven by TTL or CMOS logic or shorted to ground

by a switch.

VCC

Power supply voltage that is monitored.

Patent Pending

3

Doc. No. 3005, Rev. P

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