X5643 Description
Replaces X25643/X25645 X5643/X5645 CPU Supervisor with 64Kbit SPI EEPROM.
X5643 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 operati