X4043
Overview
- Selectable watchdog timer
- Low VCC detection and reset assertion -Five standard reset threshold voltages -Adjust low VCC reset threshold voltage using special programming sequence -Reset signal valid to VCC = 1V
- Low power CMOS -<20µA max standby current, watchdog on -<1µA standby current, watchdog OFF -3mA active current
- 4kbits of EEPROM -16-byte page write mode -Self-timed write cycle -5ms write cycle time (typical)
- Built-in inadvertent write protection -Power-up/power-down protection circuitry -Protect 0, 1/4, 1/2, all or 16, 32, 64 or 128 bytes of EEPROM array with Block Lock™ protection
- 400kHz 2-wire interface
- 2.7V to 5.5V power supply operation
- Available packages -8 Ld SOIC -8 Ld MSOP -8 Ld PDIP
- Pb-free plus anneal available (RoHS compliant) BLOCK DIAGRAM Watchdog Transition Detector WP SDA Data Register Command Decode & Control Logic VCC Threshold Reset logic Block Lock Control Protect Logic Status Register EEPROM Array 2Kbits 1Kb 1Kb
