(PDF) PST994 Datasheet - System Reset

Número de pieza	PST994
Descripción	System Reset
Fabricantes	ETC
Logotipo
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No Preview Available ! MITSUMI System Reset Monolithic IC PST993, 994 System Reset PST993, 994 Outline The function of this IC is to accurately reset systems after detecting the supply voltage at the time of switching power on and instantaneous power off in various CPU and other logic systems. Further, this IC can be offered at low cost because it is designed to be simplified allowing for the replacement from reset circuit of discrete configuration. Features 1. Voltage detect precision 2. Low consumption current 3. Low operating threshold voltage 4. Hysteresis voltage is provided as detect voltage 5. Large output current at the time ON 6. Detect voltage rank 7. Output form PST993 : Constant current load built-in PST994 : Open collector VS±5% max. ICCH=300µA typ. ICCL=250µA typ. 0.65V typ. 50mV typ. 15mA typ. PST993 C : 4.5V H : 3.1V D : 4.2V I : 2.9V E : 3.9V J : 2.7V F : 3.6V K : 2.5V G : 3.3V L : 2.3V (Same ranks for PST994 too) Packages TO-92A (PST993 , PST994 ) * contains detection voltage rank. Applications 1. Reset circuits for microcomputers, CPU and MPU. 2. Reset circuit for logic circuitry. 3. Level detecting circuit. Pin Assignment 123 TO-92A 1 VCC 2 GND 3 VOUT 1 page

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PDF PST994 Data sheet ( Hoja de datos )