X5645 Overview
These devices bine four popular functions, Poweron Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This bination lowers system cost, reduces board space requirements, and increases reliability. Applying power to the device activates the power on reset circuit which holds RESET/RESET active for a period of time.
X5645 Key Features
- Selectable watchdog timer
- Low VCC detection and reset assertion
- Five standard reset threshold voltages -Re-program low VCC reset threshold voltage
- Determine watchdog or low voltage reset with a volatile flag bit
- Long battery life with low power consumption -<50µA max standby current, watchdog on -<1µA max standby current, watchdog
- 64Kbits of EEPROM
- 2MHz SPI interface modes (0,0 & 1,1)
- Minimize EEPROM programming time -32-byte page write mode -Self-timed write cycle -5ms write cycle time (typical)
- 2.7V to 5.5V and 4.5V to 5.5V power supply operation
- Available packages -8-lead PDIP, 14-lead SOIC