SSPP770066RR//SS//TT -- SSPP770088RR//SS//TT 3.0V/3.3V Low Power Microprocessor Supervisory 3.0V/3.3V Low Power Microprocessor Supervisory CCiirrccuuiittss April 2015 Rev. 3.0.0 GENERAL DESCRIPTION APPLICATIONS The SP706R/S/T and SP708R/S/T series is a Processors & DSPs Based Systems family of microprocessor (P) supervisory Industrial & Medical Instruments circuits that integrate myriad components involved in discrete solutions which monitor power-supply and battery in P and digital FEATURES systems. Precision Low Voltage Monitor The SP706R/S/T and SP708R/S/T series will SP706R/SP708R: +2.63V significantly improve system reliability and SP706S/SP708S: +2.93V operational efficiency when compared to SP706T/SP708T: +3.08V solutions obtained with discrete components. The features of the SP706R/S/T and 200ms RESET Pulse Width SP708R/S/T series include a watchdog timer, a SP706R/S/T: Active Low P reset, a Power Fail Comparator, and a SP708R/S/T: Active High and Active Low manual-reset input. Independent Watchdog Timer The SP706R/S/T and SP708R/S/T series is ideal for 3.0V or 3.3V applications in automotive 1.6s Timeout (SP706R/S/T) systems, computers, controllers, and intelligent Enable/Disable Function instruments. The SP706R/S/T and SP708R/S/T 40A Maximum Supply Current series is an ideal solution for systems in which critical monitoring of the power supply to the P Debounced TTL/CMOS Manual Reset and related digital components is demanded. Input RESET Asserted Down to V =1V CC 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 708R/S/T Part Number RESET Threshold RESET Active Manual RESET Watchdog PFI Accuracy Yes SP706R 2.63V Low Yes 4% SP706S Low Yes Yes 4% 2.93V SP706T Low Yes Yes 4% 3.08V No SP708R 2.63V Low and High Yes 4% No SP708S 2.93V Low and High Yes 4% SP708T Low and High Yes No 4% 3.08V Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 SSPP770066RR//SS//TT -- SSPP770088RR//SS//TT 3.0V/3.3V Low Power Microprocessor Supervisory 3.0V/3.3V Low Power Microprocessor Supervisory CCiirrccuuiittss ESD Rating (HBM - Human Body Model) .................... 2kV ABSOLUTE MAXIMUM RATINGS Continuous Power Dissipation These are stress ratings only and functional operation of SO (derate 5.88mW/C above +70C) ...............471mW the device at these ratings or any other above those Mini SO (derate 4.10mW/C above +70C) ........330mW indicated in the operation sections of the specifications Storage Temperature .............................. -65C to 160C below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect Lead Temperature (Soldering, 10 sec) ....................300C reliability. V .......................................................... -0.3V to 6.0V CC All Other Inputs (Note 1) ................... -0.3V to (V +0.3V) CC Input Current VCC ................................................................. 20mA GND ................................................................ 20mA Output Current (All outputs) ............................... 20mA ELECTRICAL SPECIFICATIONS Unless otherwise indicated, VCC = 2.7V to 5.5V (SP70xR), VCC = 3.15V to 5.5V (SP70xS), VCC = 3.0V to 5.5V (SP70xT), TA= T to T , typical at 25C. MIN MAX Parameter Min. Typ. Max. Units Conditions Operating Voltage Range VCC 1.0 5.5 V MR=VCC or floating, WDI floating, 25 40 A VCC = 3.3V Supply Current ISUPPLY 40 80 A MR=VCC or floating, VCC = 5.5V 2.55 2.63 2.70 SP706R. SP708R Reset Threshold 2.93 3.00 V SP706S. SP708S 2.85 3.08 3.15 SP706T. SP708T 3.00 Reset Threshold Hysteresis 20 mV Note 2 Reset Pulse Width tRS 140 200 280 ms Note 2 RESET Output Voltage 0.8xV V <V <3.6V, I =500A VOH CC RST(MAX) CC SOURCE V 0.3 V VRST(MAX)<VCC<3.6V, ISINK=1.2mA OL V VCC-1.5 4.5V<VCC<5.5V, ISOURCE=800A OH 0.4 4.5V<VCC<5.5V, ISINK=3.2mA VOL RESET Output Voltage V <V <3.6V, I =215A VOH VCC-0.6 RST(MAX) CC SOURCE V 0.3 V VRST(MAX)<VCC<3.6V, ISOURCE=1.2mA OL V VCC-1.5 4.5V<VCC<5.5V, ISOURCE=800A OH 0.4 4.5V<V <5.5V, I =3.2mA VOL CC SOURCE Watchdog Timeout Period t 1.60 2.25 s V <3.6V WD 1.00 CC WDI Pulse Width tWP (note 1) 50 ns VIL=0.4V, VIH=0.8xVCC WDI Input Threshold V 0.6 VRST(MAX)<VCC<3.6V IL 0.7xV V V <V <3.6V VIH CC RST(MAX) CC 0.8 V =5V VIL CC V 3.5 VCC=5V IH WDI Input Current -1 0.02 1 A WDI=0V or WDI=VCC WDO Output Voltage 0.8xV V <V <3.6V, I =500A VIL CC RST(MAX) CC SOURCE V V 0.3 VRST(MAX)<VCC<3.6V, ISINK=1.2mA IH V VCC-1.5 4.5V<VCC<5.5V, ISOURCE=800A IL 2015 Exar Corporation 2/17 Rev. 3.0.0