MCP131X Datasheet, PDF (1/44 Pages) Microchip Technology – Voltage Supervisor

MCP131X/2X
Voltage Supervisor
Features
Package Types
• Low supply current: 1 μA (typ.), 10 μA (max.)
• Precision monitoring trip point options:
- 2.9V and 4.6V (Standard Offerings)
- 2.0V to 4.7V in 100 mV increments,
(Contact the local Microchip Sales Office)
• Resets microcontroller in a power-loss event
• Reset Delay Time Out Option:
- 1.4 ms, 30 ms, 200 ms, or 1.6s (typ.)
• Watchdog Timer Input Time Out Options:
- 6.3 ms, 102 ms, 1.6s or 25.6s (typ.)
• Manual Reset (MR) input (active-low)
• Single and complementary Reset output(s)
• Reset Output Options:
- Push-Pull (active-high or active-low)
- Open-Drain (internal or external Pull-up)
• Temperature Range: -40°C to +125°C
• Voltage Range: 1.0V to 5.5V
• Lead Free Packaging
Description
The MCP1316/16M/17/18/18M/19/19M/20/21/22 are
voltage supervisor devices designed to keep a micro-
controller in Reset until the system voltage has reached
and stabilized at the proper level for reliable system
operation. This sevice family also offers a Watchdog
Timer to monitor system operation and a Manual Reset
input. The table below shows the available features for
these devices.
Device Features
SOT-23-5
MCP1316/16M/20
RST 1
V_{SS 2}
5 V_DD
RST
V_SS
MR 3
4 WDI MR
MCP1317
1
5
2
3
4
V_DD
WDI
MCP1318/18M/21
RST 1
5 V_DD
V_{SS 2}
RST 3
4 _WDI
MCP1319/19M/22
RST 1
5 ^VDD
V_{SS 2}
RST 3
4 MR
Block Diagram
V_DD
Comparator
+
–
Reference
Voltage
Output
Driver
RST
RST
MR
Noise Filter
WDI
Watchdog
V_SS
Note: Features available depend on the device
Device
Reset Output A
Type
Pull-up Active
Resistor Level
Reset Output B
Type
Pull-up Active
Resistor Level
WDI Input
MR Input
MCP1316
Push-Pull
—
Low
—
—
—
Yes
Yes
MCP1316M Open-Drain Internal Low
—
—
—
Yes
Yes
MCP1317
Push-Pull
—
High
—
—
—
Yes
Yes
MCP1318
Push-Pull
—
Low Push-Pull
—
High
Yes
No
MCP1318M Open-Drain Internal Low Push-Pull
—
High
Yes
No
MCP1319
Push-Pull
—
Low Push-Pull
—
High
No
Yes
MCP1319M Open-Drain Internal Low Push-Pull
—
High
No
Yes
MCP1320
Open-Drain External Low
—
—
—
Yes
Yes
MCP1321
Open-Drain External Low Push-Pull
—
High
Yes
No
MCP1322
Open-Drain External Low Push-Pull
—
High
No
Yes
© 2005 Microchip Technology Inc.
DS21985A-page 1