Description

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.

Specifications and features

• Selectable time out watchdog timer
• Low VCC detection and reset assertion
— Five standard reset threshold voltages
— Re-program low VCC reset threshold voltage using special programming sequence.
— Reset signal valid to VCC= 1V
• Long battery life with low power consumption
— <50µA max standby current, watchdog on
— <10µA max standby current, watchdog off
— <2mA max active current during read
• 2.7V to 5.5V and 4.5V to 5.5V power supply versions
• 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
• 3.3MHz clock rate
• Minimize programming time
— 16-byte page write mode
— Self-timed write cycle
— 5ms write cycle time (typical)
• SPI modes (0,0 & 1,1)
• Available packages
— 8-lead MSOP, 8-lead SOIC, 8-pin PDIP
— 14-lead TSSOP

Application Scenarios

The X5045S8I-4.5A model can be used in various electronic applications where Power on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory are required. It is commonly used in electronic systems where cost reduction, board space optimization, and improved reliability are important factors.

Comparison

The X5045S8I-4.5A model offers several advantages and disadvantages:

- Combines four popular functions in one package, reducing system cost and board space requirements.

- Increases reliability by integrating multiple functionalities.

- Low power consumption for long battery life.

- Multiple power supply versions available.

- EEPROM memory with high write cycle endurance.

- Block Lock™ memory for protecting critical data.

- Built-in inadvertent write protection.

- Minimizes programming time with self-timed write cycles.

- Supports SPI modes (0,0 & 1,1).

- Available in various package options.

- None