General Description
The MCP102/103/121/131 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. Table 1 shows the available features for these devices.

Features
• Ultra low supply current: 1.75 µA(steady-state max.)
• Precision monitoring options of:- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and 4.63V
• Resets microcontroller in a power-loss event
• RSTpin (Active-low):
    - MCP121:Active-low, open-drain
    - MCP131:Active-low, open-drain with internal pull-up resistor
    - MCP102and MCP103:Active-low, push-pull
• Reset Delay Timer (120 ms delay, typ.)
• Available in SOT23-3, TO-92 and SC-70 packages
• Temperature Range:
    - Extended: -40°C to +125°C(except MCP1XX-195)
    - Industrial: -40°C to +85°C (MCP1XX-195 only)
• Pb-free devices

Applications
• Critical Microcontroller and Microprocessor Power-monitoring Applications
• Computers
• Intelligent Instruments
• Portable Battery-powered Equipment