FM1233A
Overview
The FM1233A is a supervisor circuit that monitors a microprocessor power supply or other system voltage and issues a reset pulse when a fault condition exists. Several different threshold voltages are offered to accommodate 3.3V and 3.0V systems with different tolerances.
- Precision monitoring of 3.3V and lower voltage microprocessor systems
- VTH values of 3.08V, 2.88V and 2.72V
- Automatic restart of microprocessor after power failure
- Reset Timeout Period Choice: - Options AC and AD: 140ms (min)/256ms (typ) - Option ABA: 17ms (min)/32ms (typ) - Available on request: 64ms (typ) and 128ms (typ)
- Internal 5kΩ pull-up resistor
- Operating Temperature -40°C to +105°C
- Monitors external pushbutton override
- Internal switch debounce circuitry
- SOT23-3 package Typical Operating Circuit VCC 3 FM1233A Controller 1 GND 2 RESET Connection Diagram
