Description
® X4283, X4285 128K, 16K x 8 Bit Data Sheet May 23, 2006 FN8121.1 CPU Supervisor with 128K EEPROM .
The X4283, X4285 combines four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock protect serial EE.
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
Applications
* requiring higher precision. Watchdog Timer Reset RESET (X4283) RESET (X4285) Reset & Watchdog Timebase
S0 S1
8Kb 4Kb 4Kb
SCL
VCC VTRIP
+ -
Power-on and Low Voltage Reset Generation
Kb=Kilobyte
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Proc