M62021L Overview
The M62021 is a system IC that controls the memory backup function of microputer (internal RAM). The IC outputs reset signals (RES/RES) to a microputer at power-down and power failure. It also shifts the power supply to RAM from main to backup, outputs a signal (CS) that invokes standby mode, and alters RAM to backup circuit mode.
M62021L Key Features
- 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)
- Delay time variable by an external capacitance connected to Ct pin
- Facilitates to form backup function with a few number of ponents
- Power supply control systems for memory backup of microputer system and SRAM boards with built-in backup function that r
- + 1.24V
