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
Intersil Corporation
is a market leader in power management and precision analog technology
for many of the most rigorous applications in the computing, consumer,
and industrial markets. The company supplies a full range of power IC
solutions including battery management, computing power, display power,
regulators and controllers, and power modules; as well as precision
analog components such as amplifiers and buffers, proximity and light
sensors, data converters, timing products, optoelectronics and interface
products. As a major supplier to the military and aerospace industries,
Intersil’s product development methodologies reflect experience
designing products to meet the highest standards for reliability and
performance in challenging environments.
