M62021FP
Overview
The M62021 is a system IC that controls the memory backup function of microcomputer (internal RAM). The IC outputs reset signals (RES/RES) to a microcomputer at power-down and power failure.
- Built-in switch for selection between main power supply and backup power supply to RAM.
- Small difference between input and output voltage (IOUT = 80 mA, VIN = 5 V) 0.2 V Typ
- Detection voltage (power supply monitor voltage) 4.40 V ± 0.2 V
- Chip select signal output (CS)
- Two channels of reset outputs (RES/RES)
- Power on reset circuit built-in
- Delay time variable by an external capacitance connected to Ct pin
- Facilitates to form backup function with a few number of components
