MIC2774H-17YM5TR データシートの表示（PDF） - Micrel

部品番号

コンポーネント説明

メーカー

MIC2774H-17YM5TR

Dual Micro-Power Low Voltage Supervisor

Micrel 

Micrel, Inc.

Pin Configuration

MIC2774

SOT-23-5 (M5)

“H” Version

SOT-23-5 (M5)

“L” and “N” Version

Pin Description

Pin Number

MIC2774H

Pin Number

MIC2774L

MIC2774N

1

1

2

2

3

3

4

4

5

5

Pin Name

RST

/RST

GND

/MR

IN

VDD

Pin Function

Digital (Output): Asserted high whenever VIN or VDD falls below the threshold

voltage. It will remain asserted for no less than 140ms after VIN and VDD return

above the threshold limits.

Digital (Output): Asserted low whenever VIN or VDD falls below the threshold

voltage. It will remain asserted for no less than 140ms after VIN and VDD return

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

pull-up resistor).

Ground

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

Assuming VIN and VDD are above the thresholds when /MR is released

(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

internal pull-up to VDD and may be left open if unused.

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

reference. An undervoltage condition will trigger a reset sequence.

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.

March 16, 2015

3

Revision 2.0

Share Link: