PST933x

www.DataSheet4U.com MITSUMI System Reset PST93XX System Reset Monolithic IC PST93XX Series Outline These low reset type ICs function in a variety of CPU systems and other logic systems, to detect power supply voltage and reset the system accurately when power is turned on or interrupted. They are ideal for use in battery check circuits for products using batteries, as they have ultra-low current consumption and a high precision voltage detection function. Features 1. 2. 3. 4. 5. 6. High precision voltage detection VS±2% max. Ultra-low current consumption ICCH=2.0µA typ. ICCL=2.0µA typ. Low operating limit voltage 0.65V typ. Hysteresis voltage provided in detection voltage 50mV typ. Output current high for ON 5mA min. Detection voltage can be selected as desired within a range of 1.9V ~ 4.6V in 0.1V steps, as indicated below. PST93XX detection voltage value ....... (Example: for 4.2V PST9342) Package SC-82ABA (PST93 U) Applications 1. 2. 3. 4. 5. Reset circuits in microcomputers, CPUs and MPUs. Logic circuit reset circuits. Battery voltage check circuits. Back-up power supply switching circuits. Level detection circuits. Pin Assignment w w w a D . S a t t e he 4U m o .c 1 4 3 1 2 3 NC GND VOUT VCC 2 4 SC-82ABA (TOP VIEW) www.DataSheet4U.com MITSUMI System Reset PST93XX Block Diagram Pin Description Pin no. 1 2 3 4 Pin name NC GND VOUT VCC GND pin Reset signal output pin Power supply pin/voltage detection pin Function Absolute Maximum Ratings Item S...