Micrel, Inc.

MIC2774

March 16, 2015

3

Revision 2.0

Pin Configuration

SOT-23-5 (M5)

“H” Version

SOT-23-5 (M5)

“L” and “N” Version

Pin Description

Pin Number

MIC2774H

Pin Number

MIC2774L

MIC2774N

Pin Name

Pin Function

1

RST

above the threshold limits.

1

/RST

above the threshold limits. (Open-drain for “N” version, requires an external

pull-up resistor).

2

2

GND

Ground

3

3

/MR

Digital (Input): Driving this pin low initiates immediate and unconditional reset.

(returns high), the reset output will be de-asserted no less than 140ms later.

/MR may be driven by a logic signal or a mechanical switch. /MR has an

4

4

IN

Analog (Input): The voltage on this pin is compared to the internal 300mV

reference. An undervoltage condition will trigger a reset sequence.

5

5

VDD

Analog (Input): Power supply input for internal circuitry and input to the fixed

voltage monitor. The voltage on this pin is compared against the internal

reference. An undervoltage condition will trigger a reset sequence.