CPU Supervisor with 4K SPI EEPROM
●These devices combine four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.
●Features
●•Low VCCDetection and Reset Assertion
●\- Four standard reset threshold voltages 4.63V, 4.38V, 2.93V, 2.63V
●\- Re-program low VCCreset threshold voltage using special programming sequence.
●\- Reset signal valid to VCC= 1V
●• Selectable Time Out Watchdog Timer
●• Long Battery Life with Low Power Consumption
●\- <50µA max standby current, watchdog on
●\- <10µA max standby current, watchdog off
●• 4Kbits of EEPROM–1M Write Cycle Endurance
●• Save Critical Data with Block Lock™Memory
●\- Protect 1/4, 1/2, all or none of EEPROM array
●• Built-in Inadvertent Write Protection
●\- Write enable latch
●\- Write protect pin
●• SPI Interface - 3.3MHz Clock Rate
●• Minimize Programming Time
●\- 16-byte page write mode
●\- 5ms write cycle time (typical)
●• Available Packages
●\- 8 Ld MSOP, 8 Ld SOIC, 8 Ld PDIP
●\- 14 Ld TSSOP
●• Pb-Free Plus Anneal Available (RoHS Compliant)
●Applications
●• Communications Equipment
●\- Routers, Hubs, Switches
●\- Set Top Boxes
●• Industrial Systems
●\- Process Control
●\- Intelligent Instrumentation
●• Computer Systems
●\- Desktop Computers
●\- Network Servers
●• Battery Powered Equipment
