Click here for production status of specific part numbers. MAX705MAX708/MAX813L Low-Cost, P Supervisory Circuits General Description Benefits and Features The MAX705MAX708/MAX813L microprocessor (P) Supervisory-Function Integration Significantly supervisory circuits reduce the complexity and number of Improves System Reliability While Reducing Board components required to monitor power-supply and battery Space functions in P systems. These devices significantly improve MAX Package system reliability and accuracy compared to separate ICs or Guaranteed RESET Valid at V = 1V CC discrete components. - 200ms Reset Pulse Width The MAX705/MAX706/MAX813L provide four functions: - Debounced TTL/CMOS-Compatible Manual- Reset Input 1) A reset output during power-up, power-down, and - Active-High Reset Output (MAX707/MAX708/ brownout conditions. MAX813L) 2) An independent watchdog output that goes low if Precision-Supply Voltage Monitor the watchdog input has not been toggled within 1.6 - 4.65V (MAX705/MAX707/MAX813L) seconds. - 4.40V (MAX706/MAX708) 3) A 1.25V threshold detector for power-fail warning, low- Voltage Monitor for Power-Fail or Low-Battery battery detection, or for monitoring a power supply Warning other than +5V. 4) An active-low manual-reset input. Ordering Information The MAX707/MAX708 are the same as the MAX705/ MAX706, except an active-high reset is substituted for PART TEMP RANGE PIN-PACKAGE the watchdog timer. The MAX813L is the same as the MAX705CPA 0C to +70C 8 Plastic DIP MAX705, except RESET is provided instead of RESET. MAX705CSA 0C to +70C 8 SO Two supply-voltage monitor levels are available: The MAX705CUA 0C to +70C 8 MAX MAX705/MAX707/MAX813L generate a reset pulse when MAX705C/D 0C to +70C Dice* the supply voltage drops below 4.65V, while the MAX706/ *Dice are specified at T = +25C. A MAX708 generate a reset pulse below 4.40V. All four parts **Contact factory for availability and processing to MIL-STD-883. are available in 8-pin DIP, SO, and MAX packages. Devices in PDIP, SO, and MAX packages are available in both leaded and lead(Pb)-free/RoHS-compliant packaging. Specify Applications lead-free by adding the + symbol at the endof the part number when ordering. Computers Lead-free packaging is not available for CERDIP packages. Controllers Intelligent Instruments Ordering Information continued at end of data sheet. Critical P Power Monitoring Typical Operating Circuit Pin Configurations appear at end of data sheet. UNREGULATED DC MAX667 +5V DC LINEAR REGULATOR P V CC V CC RESET RESET PFI PFI I/O LINE MAX705 WDO NMI MAX706 MR INTERRUPT PFO MAX813L PUSHBUTTON SWITCH MAX is a registered trademark of Maxim Integrated Products, Inc. 19-4334 Rev. 11 7/18MAX705MAX708/MAX813L MAX705MAX708/MAX813L Low-Cost, P Supervisory Circuits Absolute Maximum Ratings Terminal Voltage (with respect to GND) CERDIP (derate 8.00mW/C above +70C) ................640mW V .....................................................................-0.3V to 6.0V Operating Temperature Ranges CC All Other Inputs (Note 1) ..................... -0.3V to (V + 0.3V) MAX70 C , MAX813LC ...............................0C to +70C CC Input Current MAX70 E , MAX813LE .......................... -40C to +85C V .................................................................................20mA MAX70 MJA ................................................. -55C to +125C CC GND ...............................................................................20mA Storage Temperature Range ............................ -65C to +160C Output Current (all outputs) ................................................20mA Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) Soldering Temperature (reflow) A Plastic DIP (derate 9.09mW/C above +70C) ............727mW Lead(Pb)-free...............................................................+260C SO (derate 5.88mW/C above +70C) ........................471mW Containing Lead(Pb) ....................................................+240C MAX (derate 4.10mW/C above +70C) ...................330mW Note 1: The input-voltage limits on PFI and MR can be exceeded if the input current is less than 10mA. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V = 4.75V to 5.5V for MAX705/MAX707/MAX813L, V = 4.5V to 5.5V for MAX706/MAX708, T = T to T , unless otherwise CC CC A MIN MAX noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX70 C 1.0 5.5 Operating Voltage Range V MAX813LC 1.1 5.5 V CC MAX70 E/M, MAX813LE/M 1.2 5.5 MAX705C, MAX706C, MAX813LC 150 350 MAX705E/M, MAX706E/M, MAX813LE/M 150 500 Supply Current I A SUPPLY MAX707C, MAX708C 50 350 MAX707E/M, MAX708E/M 50 500 MAX705, MAX707, MAX813L 4.50 4.65 4.75 Reset Threshold (Note 2) V V RT MAX706, MAX708 4.25 4.40 4.50 Reset Threshold Hysteresis (Note 2) 40 mV Reset Pulse Width (Note 2) t 140 200 280 ms RS I = 800A V - 1.5 SOURCE CC I = 3.2mA 0.4 SINK RESET Output Voltage V MAX70 C, V = 1V, I = 50A 0.3 CC SINK MAX70 E/M, V = 1.2V, I = 100A 0.3 CC SINK MAX707, MAX708, I = 800A V - 1.5 SOURCE CC MAX707, MAX708, I = 1.2mA 0.4 SINK MAX813LC, I = 4A, V = 1.1V 0.8 SOURCE CC RESET Output Voltage V MAX813LE/M, I = 4A, V = 1.2V 0.9 SOURCE CC I = 800A V - 1.5 SOURCE CC MAX813L I = 3.2mA 0.4 SINK Maxim Integrated 2 www.maximintegrated.com