MCP131X/2X
Voltage Supervisor
Features
Package Types
SOT-23-5
• Low supply current: 1 µA (typical),10 µA (max.)
• Precision monitoring trip point options:
- 2.9V and 4.6V (Standard Offerings)
MCP1316/16M/20
MCP1317
VDD
WDI
RST
VSS
RST
1
5
1
2
3
VDD
WDI
5
- 2.0V to 4.7V in 100 mV increments,
(Contact the local Microchip Sales Office)
VSS
MR
2
3
4
MR
4
• Resets microcontroller in a power-loss event
• Reset Delay Time Out Option:
MCP1318/18M/21
MCP1319/19M/22
- 1.4 ms, 30 ms, 200 ms, or 1.6s (typical)
• Watchdog Timer Input Time Out Options:
- 6.3 ms, 102 ms, 1.6s, or 25.6s (typical)
• Manual Reset (MR) input (active-low)
• Single and Complementary Reset output(s)
• Reset Output Options:
VDD
VDD
RST
VSS
1
2
3
5
1
2
3
5
RST
VSS
RST
4
4
RST
MR
WDI
- Push-Pull (active-high or active-low)
- Open-Drain (internal or external Pull-up)
• Temperature Range:
Block Diagram
VDD
Comparator
- -40°C to +85°C for trip points 2.0 to 2.4V and,
- -40°C to + 125°C for trip points > 2.5V
+
–
RST
RST
• Voltage Range: 1.0V to 5.5V
• Lead Free Packaging
Output
Driver
Reference
Voltage
Description
MR
The MCP131X/2X are voltage supervisor devices
designed to keep a microcontroller in Reset until the
system voltage has reached and stabilized at the
proper level for reliable system operation. The table
below shows the available features for these devices.
Noise Filter
Watchdog
VSS
WDI
Note: Features available depend on the device
Device Features
Reset Output A
Device
Reset Output B
WDI Input
MR Input
Pull-up
Active
Pull-up
Active
Type
Type
Resistor Level
Resistor Level
MCP1316
MCP1316M
MCP1317
MCP1318
MCP1318M
MCP1319
MCP1319M
MCP1320
MCP1321
MCP1322
Push-Pull
—
Low
Low
High
Low
Low
Low
Low
Low
Low
Low
—
—
—
—
—
—
—
—
—
—
—
—
—
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Open-Drain
Push-Pull
Internal
—
—
—
—
Push-Pull
—
Push-Pull
Push-Pull
Push-Pull
Push-Pull
—
High
High
High
High
—
Open-Drain
Push-Pull
Internal
—
No
Yes
Yes
Yes
No
Open-Drain
Open-Drain
Open-Drain
Open-Drain
Internal
External
External
External
No
Yes
Yes
No
Push-Pull
Push-Pull
High
High
Yes
© 2007 Microchip Technology Inc.
DS21985B-page 1