General Description

The SP706R / SP706S / SP706T and SP708S / SP708T series is a family of microprocessor (µP) supervisory circuits that integrate a myriad of components involved in discrete solutions which monitor power-supplies and batteries in µP and digital systems.

The SP706R / SP706S / SP706T and SP708S / SP708T series will significantly improve system reliability and operational efficiency when compared to solutions using discrete components. The features of the SP706R / SP706S / SP706T and SP708S / SP708T series include a watchdog timer, a µP reset, a power fail comparator, and a manualreset input.

The SP706R / SP706S / SP706T and SP708S / SP708T series is ideal for 3.0V or 3.3V applications in automotive systems, computers, controllers and intelligent instruments.

The SP706R / SP706S / SP706T and SP708S / SP708T series is an ideal solution for systems in which critical monitoring of the power supply to the µP and related digital components is demanded. 

Features

■ Precision low voltage monitor

 SP706R: +2.63V

 SP706S / SP708S: +2.93V

 SP706T / SP708T: +3.08V

■ 200ms RESET pulse width

 SP706R / SP706S / SP706T: active low

 SP708S / SP708T: active high and active low

■ Independent watchdog timer

 1.6s timeout (SP706R / SP706S / SP706T)

 Enable / disable function

■ 40µA maximum supply current

■ Debounced TTL / CMOS manual reset input

■ RESET asserted down to VCC = 1V

■ VCC glitch immunity

■ Voltage monitor for power failure or low battery warning

■ 8-Pin NSOIC and MSOP packages

■ Pin compatible with industry standards 706R/S/T and

708S/T

Applications

■ Processors & DSPs based systems

■ Industrial & medical instruments