The TC1232 is a fully-integrated processor supervisor that provides three important functions to safeguard processor sanity: precision power on/off reset control, watchdog timer and external reset override.
The TC1232 is a fully‑integrated processor supervisor that provides precision power‑on/off reset control, a watchdog timer and an external reset override. It monitors processor power and generates reset signals when voltage or timing thresholds are violated.
The device is offered in 8‑Pin PDIP, 8‑Pin SOIC and 16‑Pin SOIC Wide packages and requires no external components. Electrical characteristics, pin functions and packaging information are detailed in the following sections.
| Supply Voltage (VCC) | 4.5 V – 5.5 V |
|---|---|
| Reset Pulse Width (minimum) | 250 ms |
| Watchdog Timer Options | 150 ms, 600 ms, 1.2 s |
| Input Leakage (ST, TOL) | -1.0 µA – +1.0 µA |
| RST Output Current | -1.0 mA – -12 mA |
| Input Capacitance (Cin) | 5 pF |
| Output Capacitance (Cout) | 7 pF |
| Package Types | 8‑Pin PDIP, 8‑Pin SOIC, 16‑Pin SOIC Wide |
The reset pulse width is at least 250 ms.
The TC1232 is offered in 8‑Pin PDIP, 8‑Pin SOIC, and 16‑Pin SOIC Wide packages.
The timeout period is set by the TD pin: 150 ms when TD is grounded, 600 ms when TD is floating, and 1.2 s when TD is tied to VCC.
Input leakage is specified between –1.0 µA and +1.0 µA.