MM1096

MITSUMI System Reset (with built-in watchdog timer) MM1096 System Reset (with built-in watchdog timer) Monolithic IC MM1096 Outline This IC functions in a variety of CPU systems and other logic systems to generate a reset signal and reset the system accurately during momentary interruption or lowering of power supply voltage. It also has a built-in watchdog timer for operation diagnosis. This prevents the system from running wild by generating an intermittent reset pulse during system mis-operation. Features 1. 2. 3. 4. 5. Built-in watchdog timer Low minimum operating voltage 130µA typ. Low operating limit voltage VCC=0.8V Watchdog stop function (RCT pin) Long clock monitoring time TPR (POWER ON) : TWD (clock monitoring)=1 : 5 6. Few external parts Package DIP-8B (MM1096AD, MM1096BD) SOP-8C (MM1096AF, MM1096BF) SIP-8A (MM1096AS, MM1096BS) Applications 1. Reset circuits in microcomputers, CPUs and MPUs 2. Logic circuit reset circuits 3. Microcomputer system monitoring, etc. Pin Assignment 8 7 6 5 1 2 3 4 DIP-8B/SOP-8C (TOP VIEW) 1 2 3 4 5 6 7 8 TC NC CK GND VCC RCT VS RESET 1 2 3 4 5 6 7 8 SIP-8A ------------------------------------------------------ 1 2 3 4 5 6 7 8 TC NC CK GND VCC RCT VS RESET ------------------------------------------------------ MITSUMI System Reset (with built-in watchdog timer) MM1096 Pin Description Pin No. Pin name TWD, TWR, TPR variable pins. 1 TC N.C CK GND VCC RCT VS ---------------------------------------------------------...