
	Microchip Technology Semiconductor Electronic Components Datasheet

MCP100 Datasheet

Microcontroller Supervisory Circuit with Push-Pull Output

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MCP100/101

Microcontroller Supervisory Circuit with Push-Pull Output

FEATURES

• Holds microcontroller in reset until supply voltage

reaches stable operating level

• Resets microcontroller during power loss

• Precision monitoring of 3V, 3.3V, and 5V systems

• 7 voltage trip points available

• Active low RESET pin (MCP100) or active high

RESET (MCP101)

• Push-pull output

• Holds RESET/RESET for 350 ms (typical)

• Guaranteed RESET/RESET to VDD = 1.0V

• Accuracy of ±125mV for 5V systems and ±75mV

for 3V systems over temperature

• 45 µA typical operating current

• Temperature range:

- Industrial (I): -40°C to +85°C

DESCRIPTION

The Microchip Technology Inc. MCP100/101 is a volt-

age supervisory device designed to keep a microcon-

troller in reset until the system voltage has reached the

proper level and stabilized. It also operates as protec-

tion from brown-out conditions when the supply voltage

drops below a safe operating level. Both devices are

available with a choice of seven different trip voltages

and both have push-pull outputs. The MCP100 has a

low active RESET pin and the MCP101 has a high

active RESET pin. The MCP100/101 will assert the

RESET/RESET signal whenever the voltage on the

VDD pin is below the trip-point voltage.

PACKAGES

TO-92 with

‘D’ Bondout

RST

RSTVDD

VSS

MCP100

MCP101

TO-92 with

‘H’ Bondout

VDD

VSS

RST

MCP100

MCP101

SOT-23-3

RST

VDD

VSS

MCP100

MCP101

BLOCK DIAGRAM

VDD

Comparator

Delay

Circuit

Bandgap

Reference

Output

Driver

RESET

Preliminary

DS11187D-page 1


	Microchip Technology Semiconductor Electronic Components Datasheet

MCP100 Datasheet

Microcontroller Supervisory Circuit with Push-Pull Output

No Preview Available !

MCP100/101

1.0 ELECTRICAL CHARACTERISTICS

1.1 Maximum Ratings*

VDD ..................................................................................7.0V

All inputs and outputs w.r.t. VSS............... -0.6V to VDD +1.0V

Storage temperature .....................................-65°C to +150°C

Ambient temp. with power applied ................-65°C to +125°C

Soldering temperature of leads (10 seconds) ............. +300°C

ESD protection on all pins .................................................. ≥ 2 kV

*Notice: Stresses above those listed under “Maximum

Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operational listings of this specification

is not implied. Exposure to maximum rating conditions

for extended periods may affect device reliability.

DC AND AC CHARACTERISTICS

All parameters apply at the specified

temp and voltage ranges unless oth-

erwise noted.

VDD = 1.0 - 5.5V

Industrial (I):-40°C to +85°C

PARAMETER

SYMBOL MIN TYP MAX UNITS

TEST CONDITIONS

Operating Voltage Range

VDD Value to Guarantee RESET/

RESET

Operating current

VDD Trip Point

MCP10X-270

MCP10X-300

MCP10X-315

MCP10X-450

MCP10X-460

MCP10X-475

MCP10X-485

RESET Low Level

Output Voltage

(MCP100)

MCP100-270

MCP100-300

MCP100-315

MCP100-450

MCP100-460

MCP100-475

MCP100-485

RESET High Level MCP100-XXX

Output Voltage

(MCP100)

(All VTRIP Points)

RESET Low Level

Output Voltage

(MCP101)

MCP101-270

MCP101-300

MCP101-315

MCP101-450

MCP101-460

MCP101-475

MCP101-485

RESET High level MCP101-XXX

Output Voltage

(MCP101)

(All VTRIP Points)

Threshold Hysteresis

VDD Detect to RESET/RESET Inactive

VDD Detect to RESET/RESET

VDD

VDDMIN

IDD

VTRIP

VOL

VOH

VOL

VOH

VHYS

tRPU

tRPD

1.0 5.5

1.0

2.55

2.85

3.0

4.25

4.35

4.50

4.60

45 60

2.625

2.925

3.075

4.375

4.475

4.625

4.725

2.7

3.0

3.15

4.50

4.60

4.75

4.85

0.4

0.6

VDD-0.7

0.4

0.6

VDD-0.7

150 350 700

µA VDD = 5.5V (no load)

V IOL = 3.2mA, VDD = VTRIPMIN

IOL = 8.5mA, VDD = VTRIPMIN

V IOH = 3mA,VDD > VTRIPMAX

V IOL = 3.2mA, VDD > VTRIPMAX

IOL = 8.5mA, VDD > VTRIPMAX

V IOH = 3mA,VDD = VTRIPMIN

µs VDD ramped from VTRIPMAX +

250mV down to VTRIPMIN -

250mV

DS11187D-page 2

Preliminary

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Microcontroller Supervisory Circuit with Push-Pull Output

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