M62023P Datasheet PDF

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P MoIt a finasl asrpeescubject t I L R E his is n c limit etri ce:T Noti e param m So Ytion. nge. R A f N i ica o cha MITSUBISHI M62023L,P,FP PIN CONFIGURATION (TOP VIEW) SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP GENERAL DESCRIPTION The M62023L/P/FP is a system reset IC that controls the memory backup function of an SRAM and an embedded RAM of a microcontroller. The IC outputs reset signals (RES/RES) to a microcontroller at power-down and power failure. It also shifts the power supply to RAMs from main to backup, outputs a signal (CS) that invokes standby mode, and alters RAMs to backup circuit mode. 8 CS 7 RES 6 GND 5 RES 4 Ct 3 VIN 2 VBAT 1 VOUT Outline 8P5 (L) FEATURES Built-in switch for selection between main power supply and backup power supply to RAMs Small difference between input and output voltages (IOUT=80mA, VIN=3V) : 0.15V typ Detection voltage (power supply monitor voltage) : 2.57V typ Chip select signal output (CS) Two channels of reset outputs (RES/RES) Power on reset circuit APPLICATION Power supply control systems for memory of microcontroller systems in electronic equipment such as OA equipment, industrial equipment, and home-use electronic appliances and SRAM boards with built-in backup function that require switching between external power supply and battery. VOUT 1 VBAT 2 VIN 3 Ct 4 8 CS 7 RES 6 GND 5 RES Outline 8P4 (P) 8P2S-A (FP) BLOCK DIAGRAM VIN 3 R1 Com SW 1 VOUT D1 RESET CIRCUIT 2 VBAT R2 1.24...