X4285
FEATURES
- Selectable watchdog timer
- Low VCC detection and reset assertion
- Four 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
- 3m A active current
- 128Kbits of EEPROM
- 64 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 64, 128, 256 or 512 bytes of EEPROM array with programmable Block Lock™ protection
- 400k Hz 2-wire interface ..
- 2.7V to 5.5V power supply operation
- Available packages
- 8 Ld SOIC
- 8 Ld TSSOP
- Pb-free plus anneal available (Ro HS pliant) BLOCK DIAGRAM
Watchdog Transition Detector WP SDA Data Register mand Decode & Control Logic VCC Threshold Reset logic Block Lock Control Protect Logic Status Register EEPROM Array
DESCRIPTION
The X4283, X4285...
