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MCP120

Microchip Technology
Part Number MCP120
Manufacturer Microchip Technology
Description Microcontroller
Published Oct 3, 2005
Detailed Description MCP120/130 Microcontroller Supervisory Circuit with Open Drain Output FEATURES • Holds microcontroller in reset until su...
Datasheet PDF File MCP120 PDF File

MCP120
MCP120

Overview
MCP120/130 Microcontroller Supervisory Circuit with Open Drain 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 • Open drain output • Internal pull-up resistor (5 kΩ) for MCP130 • Holds RESET for 350 ms (typical) • RESET to VCC = 1.
0V • Accuracy of ±125 mV for 5V systems and ±75 mV for 3V systems over temperature • 45 µA typical operating current • Temperature range: - Industrial (I): -40°C to +85°C PACKAGES TO-92 with ‘D’ Bondout TO-92 WITH ‘F’ BONDOUT RST VSS VDD VSS VDD RST MCP120 MCP130 MCP130 TO-92 with ‘G’ Bondout TO-92 with ‘H’ Bondout DESCRIPTION The Microchip Technology Inc.
MCP120/130 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized.
It also operates as protection 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 open drain outputs.
The MCP130 has an internal 5 kΩ pullup resistor.
Both devices have active low RESET pins.
The MCP120/130 will assert the RESET signal whenever the voltage on the VDD pin is below the trip-point voltage.
VDD VSS RST VDD MCP120 VSS RST MCP120 MCP130 SOT-23-3 150mil SOIC RST VDD NC VSS 1 2 3 4 8 7 6 5 NC NC NC NC RST VDD VSS MCP120 MCP130 MCP120 MCP130 BLOCK DIAGRAM VDD 5kΩ internal pull-up on MCP130 only RESET Comparator + Delay Circuit Output Driver Bandgap Reference  2001 Microchip Technology Inc.
DS11184D-page 1 MCP120/130 1.
0 1.
1 ELECTRICAL CHARACTERISTICS Maximum Ratings* *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...


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