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MCP1X0-270

Description
Microcontroller Supervisory Circuit with Open Drain Output
File Size155KB,16 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
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MCP1X0-270 Overview

Microcontroller Supervisory Circuit with Open Drain Output

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 V
CC
= 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
V
SS
V
DD
V
SS
V
DD
RST
MCP120
MCP130
MCP130
TO-92 with
‘G’ Bondout
TO-92 with
‘H’ Bondout
DESCRIPTION
The Microchip Technology Inc. MCP120/130 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 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 V
DD
pin is
below the trip-point voltage.
V
DD
V
SS
RST
V
DD
V
SS
MCP120
RST
MCP120
MCP130
150mil SOIC
RST
V
DD
NC
V
SS
1
2
3
4
8
7
6
5
NC
NC
NC
NC
SOT-23-3
RST
V
DD
V
SS
MCP120
MCP130
MCP120
MCP130
BLOCK DIAGRAM
V
DD
5k
internal
pull-up on
MCP130
only
RESET
Comparator
+
-
Delay
Circuit
Output
Driver
Bandgap
Reference
2001 Microchip Technology Inc.
DS11184D-page 1

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MCP1X0-270 MCP1X0-300 MCP1X0-315 MCP1X0-450 MCP1X0-460 MCP1X0-475 MCP1X0-485
Description Microcontroller Supervisory Circuit with Open Drain Output Microcontroller Supervisory Circuit with Open Drain Output Microcontroller Supervisory Circuit with Open Drain Output Microcontroller Supervisory Circuit with Open Drain Output Microcontroller Supervisory Circuit with Open Drain Output Microcontroller Supervisory Circuit with Open Drain Output Microcontroller Supervisory Circuit with Open Drain Output
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