SSPP770055--SSPP770088--SSPP881133LL LLooww PPoowweerr MMiiccrroopprroocceessssoorr SSuuppeerrvviissoorryy CCiirrccuuiittss June 2010 Rev. 2.0.0 GENERAL DESCRIPTION APPLICATIONS The SP705-708/813L series is a family of Processors & DSPs Based Systems microprocessor (P) supervisory circuits that Industrial & Medical Instruments integrate myriad components involved in discrete solutions which monitor power-supply and battery in mP and digital systems. FEATURES The SP705-708/813L series will significantly Precision Voltage Monitor improve system reliability and operational SP705/SP707/SP813L: 4.65V efficiency when compared to solutions SP706/SP708: 4.40V obtained with discrete components. The features of the SP705-708/813L series include 200ms RESET Pulse Width a watchdog timer, a P reset, a Power Fail Independent Watchdog Timer Comparator, and a manual-reset input. 1.6s Timeout (SP705/SP706/SP813L) The SP705-708/813L series is ideal for 60A Maximum Supply Current applications in automotive systems, computers, controllers, and intelligent Debounced TTL/CMOS Manual Reset instruments. The SP705-708/813L series is an Input ideal solution for systems in which critical RESET Asserted Down to V =1.1V CC monitoring of the power supply to the P and related digital components is demanded. Voltage Monitor for Power Failure or Low Battery Warning 8-Pin PDIP, NSOIC and MSOP Packages Pin Compatible with Industry Standards 705-708-813L Series Functionally Compatible to Industry Standard 1232 Series Part Number RESET Threshold RESET Active Manual RESET Watchdog PFI Accuracy SP705 Low Yes Yes 4% 4.65V SP706 Low Yes Yes 4% 4.40V No SP707 4.65V Low and High Yes 4% No SP708 4.40V Low and High Yes 4% SP813L High Yes Yes 4% 4.65V Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 SSPP770055--SSPP770088--SSPP881133LL LLooww PPoowweerr MMiiccrroopprroocceessssoorr SSuuppeerrvviissoorryy CCiirrccuuiittss ESD Rating (HBM - Human Body Model) .................... 4kV ABSOLUTE MAXIMUM RATINGS Continuous Power Dissipation These are stress ratings only and functional operation of Plastic DIP (derate 9.09mW/C above +70C) ....727mW the device at these ratings or any other above those SO (derate 5.88mW/C above +70C) ...............471mW indicated in the operation sections of the specifications Mini SO (derate 4.10mW/C above +70C) ........330mW below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect Storage Temperature .............................. -65C to 160C reliability. Lead Temperature (Soldering, 10 sec) ....................300C 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, V = 4.75V to 5.5V (SP705-SP707-SP813L), V = 4.50V to 5.5V (SP706-SP708), T = T to CC CC A MIN T , typical at 25C. MAX Parameter Min. Typ. Max. Units Conditions Operating Voltage Range V 1.1 5.5 V CC Supply Current I 40 60 A MR=V or floating, WDI floating SUPPLY CC 4.65 4.75 SP705, SP707, SP813L 4.50 Reset Threshold V 4.40 4.50 SP706, SP708 (Note 2) 4.25 Reset Threshold Hysteresis 40 mV Note 2 Reset Pulse Width t 140 200 280 ms Note 2 RS I =800A, Note 2 V -1.5 SOURCE CC I =4A, V =1.1V, Note 2 0.8 SOURCE CC RESET Output Voltage V 0.4 I =3.2mA, Note 2 SINK 0.3 I =100A, V =1.2V, Note 2 SINK CC Watchdog Timeout Period t 1.00 1.60 2.25 s SP705, SP707, SP813L WD WDI Pulse Width t s V =0.4V, V =0.8xV WP 1 IL IH CC WDI Input Threshold Low 0.8 V SP705, SP707, SP813L V =5V CC WDI Input Threshold High 3.5 V 30 75 A SP705, SP707, SP813L, WDI=V CC WDI Input Current -20 A SP705, SP707, SP813L, WDI=0V -75 I =800A V -1.5 SOURCE CC WDO Output Voltage V I =3.2mA 0.4 SINK MR Pull-up Current 100 250 600 A MR = 0V MR Pulse Width t 150 ns MR MR Input Threshold Low 0.8 V MR Input Threshold High 2.0 MR to Reset Out Delay t 250 ns Note 2 MD PFI Input Threshold 1.20 1.25 1.30 V V =5V CC PFI Input Current 0.01 25.00 nA -25.00 I =800A V -1.5 SOURCE CC PFO Output Voltage V 0.4 I =3.2mA SINK Note 1: The input voltage limits on PFI and MR can be exceeded if the input current is less than 10mA. Note 2: Applies to both RESET in the SP705-SP708 and RESET in the SP707/708/813L/813M. 2010 Exar Corporation 2/17 Rev. 2.0.0