MAX708TCSA Maxim Integrated Products, MAX708TCSA Datasheet
MAX708TCSA
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... Portable Instruments Computers Controllers Intelligent Instruments Critical µP Power Monitoring µMAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Supervisory Circuits o µMAX Package, Small 8-Pin SO o Precision Supply-Voltage Monitors 2 ...
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... Voltage Monitoring, Low-Cost µP Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) V ........................................................................-0.3V to +6V CC All Other Inputs (Note 1)..........................-0. Input Current V ..................................................................................20mA CC GND .................................................................................20mA Output Current (all outputs) ................................................20mA Continuous Power Dissipation (T = +70°C) A 8-Pin CERDIP (derate 8mW/°C above +70°C)..............640mW 8-Pin PDIP (derate 9.1mW/° ...
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... MAX PARAMETER SYMBOL Output-Voltage High (MAX706P) (MAX706AP) Output-Voltage High (MAX708_) WATCHDOG INPUT Watchdog Timeout Period WDI Pulse Width (MAX706_, MAX706A_) Watchdog Input Threshold (MAX706_, MAX706A_) WDI Input Current _______________________________________________________________________________________ Supervisory Circuits = 3.0V to 5.5V; MAX70_T, MAX706AT CONDITIONS V V < V < 3. RST(MAX) CC SOURCE V V < ...
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... Voltage Monitoring, Low-Cost µP Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued) (MAX70_P/R, MAX706AP/AR 2.7V to 5.5V; MAX70_S, MAX706AS 5.5V unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL WATCHDOG OUTPUT WDO Output Voltage (MAX706_, MAX706A_) MANUAL RESET INPUT MR Pullup Current MR Pulse Width ...
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... Voltage Monitoring, Low-Cost µ +25°C, unless otherwise noted.) A _______________________________________________________________________________________ Supervisory Circuits Typical Operating Characteristics Typical Operating Characteristics 5 ...
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... Voltage Monitoring, Low-Cost µP Supervisory Circuits MAX706P MAX706R/S/T, MAX706AP MAX706AR/AS/AT SO/DIP µMAX SO/DIP µMAX — — — — — — — — 6 _______________________________________________________________________________________ NAME MAX708R/S/T SO/DIP µMAX Acti ve-Low , M anual -Reset Inp ut. P ull 0. eset pul se TTL com p ati hen V ...
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... RESET and RESET outputs to remain asserted. Thus, a brownout condition that interrupts a previously initiated reset pulse causes an additional 200ms delay from the time the latest interruption occurred. On power-down once V drops below the reset threshold, CC _______________________________________________________________________________________ Supervisory Circuits 8 WDO ...
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... Voltage Monitoring, Low-Cost µP Supervisory Circuits +3. RST RST CC +1V t RST RESET 0V +3.3V RESET 0V +3.3V MR* 0V +3.3V *NOTE: MR EXTERNALLY DRIVEN LOW. WDO* WDO TIMING SHOWN FOR MAX706P/R/S/T. 0V Figure 3. RESET, RESET, MR, and WDO Timing +3V/+3.3V WDI 0V +3V/+3.3V WDO 0V +3V/+3.3V RESET ...
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... Hysteresis adds a noise margin to the power-fail com- parator and prevents repeated triggering of the PFO when V is near the power-fail comparator trip point. IN Figure 7 shows how to add hysteresis to the power-fail comparator. Select the ratio of R1 and R2 such that PFI _______________________________________________________________________________________ Supervisory Circuits reset CC +3V/+3.3V ...
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... MAX708SESA -40°C to +85°C P8-1 MAX708SEUA -40°C to +85°C S8-2 MAX708SMJA -55°C to +125°C U8-1 MAX708TCPA 0°C to +70°C P8-1 MAX708TCSA 0°C to +70°C S8-2 MAX708TCUA 0°C to +70°C U8-1 MAX708TEPA -40°C to +85°C J8-2 MAX708TESA -40°C to +85°C P8-1 MAX708TEUA -40° ...
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... MR 6 AS/ µMAX RESET 1 8 RESET 2 7 MAX708R/S µMAX ( ) ARE FOR MAX706P/AP ONLY. ______________________________________________________________________________________ Supervisory Circuits WDO UNREGULATED DC RESET WDI PFO WDO PUSHBUTTON RESET WDI PFO RESET RESET N.C. PFO WDI PFO PFI GND N.C. PFO PFI GND Typical Operating Circuits (continued) ...
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... Voltage Monitoring, Low-Cost µP Supervisory Circuits (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 12 ______________________________________________________________________________________ Package Information ...
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... Voltage Monitoring, Low-Cost µP (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Supervisory Circuits Package Information (continued) α α 13 ...
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... Voltage Monitoring, Low-Cost µP Supervisory Circuits (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information (continued) ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2006 Maxim Integrated Products ...