Description

The SP708SE is a microprocessor (µP) supervisor circuit that monitors power-supply and battery in µP and digital systems. It significantly improves system reliability and operational efficiency compared to using discrete components.

Specifications and features

• Precision Low Voltage Monitor:
  - SP706P/R and SP708R at +2.63V
  - SP706S and SP708S at +2.93V
  - SP706T and SP708T at +3.08V
• RESET Pulse Width - 200ms
• Independent Watchdog Timer - 1.6 sec Timeout (SP706P/S/R/T)
• 40µA Maximum Supply Current
• Debounced TTL/CMOS Manual-Reset Input
• RESET Asserted Down to VCC = 1V
• RESET Output:
  - SP706P Active-High
  - SP706R/S/T Active-Low
  - SP708R/S/T Both Active High + Active Low
• WDI Can Be Left Floating, Disabling the Watchdog Function
• Built-In Vcc Glitch Immunity
• Available in 8-pin PDIP, NSOIC, and µSOIC packages
• Voltage Monitor for Power Failure or Low Battery Warning
• Pin Compatible Enhancement to Industry Standards 706P/R/S/T and 708R/S/T

Application Scenarios

The SP708SE can be used in various applications, including monitoring power-supply and battery in µP and digital systems, providing voltage monitoring for power failure or low battery warning, and enhancing system reliability and operational efficiency.

Comparison

- Integrates multiple components involved in discrete solutions

- Improves system reliability and operational efficiency

- Pin compatible with industry standards 706P/R/S/T and 708R/S/T

- None identified