SP706REN Electronic Integrated Circuits Ics Chips Low Power Microprocessor Supervisory Circuits

SP706P/R/S/T, SP708R/S/T

+3.0V/+3.3V Low Power Microprocessor Supervisory Circuits

■ 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 V_CC = 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

Now Available in Lead Free Packaging

The SP706P/S/R/T, SP708R/S/T series is a family of microprocessor (µP) supervisory circuits that integrate myriad components involved in discrete solutions which monitor power-supply and battery, in µP, and digital systems. The SP706P/S/R/T, SP708R/S/T series will significantly improve system reliability and operational efficiency when compared to results obtained with discrete components. The features of the SP706P/S/R/T, SP708R/S/T series include a watchdog timer, a µP reset, a Power Fail Comparator, and a manual-reset input. The SP706P/ S/R/T, SP708R/S/T series is ideal for +3.0V or +3.3V applications in automotive systems, computers, controllers, and intelligent instruments. The SP706P/S/R/T, SP708R/S/T series is an ideal solution for systems in which critical monitoring of the power supply to the µP and related digital components is demanded.

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

Terminal Voltage (with respect to GND):

V_CC........................................................-0.3V to +6.0V

All Other Inputs ...........................-0.3V to (VCC +3.0V)

Input Current:

V_CC.....................................................................20mA

GND...................................................................20mA

Output Current (all outputs)...............................20mA

ESD Rating...........................................................2kV

Continuous Power Dissipation

  Plastic DIP (derate 9.09mW/℃ above +70℃)..................727mW

  SO (derate 5.88mW/℃ above +70℃).............................471mW

  Mini SO (derate 4.10mW/℃ above +70℃)......................330mW

Storage Temperature Range...............................-65˚C to +160˚C

Lead Temperature (solding 10 sec)..................................+300˚C

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