X25643 Overview
This bination lowers system cost, reduces board space requirements, and increases reliability. The Watchdog Timer provides an independent protection mechanism for microcontrollers. During a system failure, the device will respond with a RESET/RESET signal after a selectable time-out interval.
X25643 Key Features
- Programmable Watchdog Timer
- Low Vcc Detection and Reset Assertion -Reset Signal Valid to Vcc=1V
- Save Critical Data With Block LockTM Protection -Block LockTM Protect 0, 1/4, 1/2 or all of Serial E2PROM Memory Array
- In Circuit Programmable ROM Mode
- Long Battery Life With Low Power Consumption -<50µA Max Standby Current, Watchdog On -<1µA Max Standby Current, Watchdog
- 2MHz Clock Rate
- Minimize Programming Time -32 Byte Page Write Mode -Self-Timed Write Cycle -5ms Write Cycle Time (Typical)
- SPI Modes (0,0 & 1,1)
- Built-in Inadvertent Write Protection -Power-Up/Power-Down Protection Circuitry -Write Enable Latch -Write Protect Pin
- High Reliability