MAX792RC/D Maxim Integrated, MAX792RC/D Datasheet
MAX792RC/D
Specifications of MAX792RC/D
Related parts for MAX792RC/D
MAX792RC/D Summary of contents
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... Computers Controllers Intelligent Instruments Critical µP Power Monitoring V CC ________________________________________________________________ Maxim Integrated Products For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Microprocessor and Nonvolatile Memory Supervisory Circuits ♦ Manual-Reset Input ♦ 200ms Power-OK / Reset Time Delay ♦ ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Input Voltage (with respect to GND) V .......................................................................-0.3V to +6V CC All Other Inputs.......................................-0. Input Current GND ................................................................................25mA All Other Outputs ............................................................25mA Continuous Power Dissipation (T = +70°C) A Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW Narrow SO (derate 9.52mW/° ...
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... Watchdog Timeout Period Watchdog Input Pulse Width WDO Output Voltage WDPO to WDO Delay WDPO Duration WDPO Output Voltage WDI Threshold Voltage WDI Input Current _______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits , unless otherwise noted.) CONDITIONS MAX792/MAX820L/M MAX792/MAX820R/S/T MAX792 ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued +2.75V to +5.5V MIN MAX PARAMETER OVERVOLTAGE COMPARATOR OVI Input Threshold V CC OVI Leakage Current I SINK OVO Output Voltage I SOURCE OVO Short-Circuit Current Output source current OVI to OVO Delay V OD ...
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... 200 V FALLING CC 15mV OVERDRIVE EXTERNAL PROGRAMMING MODE 100 -60 - 120 TEMPERATURE (°C) _________________________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits OVERVOLTAGE COMPARATOR PROPAGATION DELAY vs. TEMPERATURE 20mV IN OVERDRIVE = 15mV 30 150 -60 - TEMPERATURE (° ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits (T = +25°C, unless otherwise noted.) A INTERNAL-MODE RESET THRESHOLD vs. TEMPERATURE (NORMALIZED) 1.125 1.100 1.075 1.050 1.025 1.000 0.975 0.950 THE RESET THRESHOLD IS SHOWN 0.925 NORMALIZED TO 1, REPRESENTING ALL AVAILABLE MAX792/MAX820 0.900 -60 - 120 TEMPERATURE (°C) WATCHDOG TIMEOUT PERIOD vs ...
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... Watchdog-Pulse Output. Upon the absence of a transition at WDI, WDPO will pulse low for a mini- WDPO 16 mum of 500µs. WDPO precedes WDO by typically 70ns. _______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits FUNCTION CC when not used 3V. If the watchdog function is unused, connect SWT ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits Detailed Description Manual-Reset Input Many µP-based products require manual-reset capabil- ity, allowing the operator to initiate a reset. The manu- al/external-reset input (MR) can connect directly to a switch without an external pull-up resistor or debounc- ing network. MR internally connects to a 1.30V com- parator, and has a high-impedance pull- shown in Figure 1 ...
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... RESET IN/ INT LLIN/ 5 REFOUT SWT 11 WDI 7 OVI Figure 1. MAX792/MAX820 Block Diagram _______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits RESET COMPARATOR V CC LOW-LINE COMPARATOR V CC MANUAL RESET COMPARATOR 1.30V V CC INTERNAL/ EXTERNAL CONTROL 60mV INTERNAL EXTERNAL ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits MR RESET OUT Figure 2. Manual-Reset Timing Diagram MANUAL RESET 9 * OTHER RESET * SOURCES . . . * DIODES NOT REQUIRED ON OPEN-DRAIN OUTPUTS Figure 3. Diode "OR" connections allow multiple reset sources connect to In internal threshold mode, the low-line comparator ...
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... Figure 6. Connect OVI to ground if the overvoltage function is not used. OVO goes low when OVI goes above 1.30V. With OVI below 1.30V, OVO is actively pulled to V source1µA. ______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits 2 RESET TO µ µP RESET Figure 5 ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits 1.6s WDI WDPO 70ns WDO Figure 7. WDI, WDO, and WDPO Timing Diagram default is 1.6s. Select alternative timeout periods by connecting an external capacitor from SWT to GND (see Selecting an Alternative Watchdog Timeout sec- tion). When V is below the reset threshold, the watch- CC dog function is disabled ...
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... the 50% point on CE OUT using a 50Ω driver and 50pF of load capacitance (Figure 10). For minimum propagation delay, minimize the capacitive load at CE OUT, and use a low-output-impedance driver. ______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits V CC RESET THRESHOLD OUT ...
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... Microprocessor and Nonvolatile Memory Supervisory Circuits + MAX792 MAX820 OUT GND 12 * MAXIMUM R VALUE DEPENDS ON P THE NUMBER OF RAMS. MINIMUM R VALUE IS 1kΩ P ACTIVE-HIGH CE LINES FROM LOGIC Figure 11. Alternate CE Gating Alternative Chip-Enable Gating Using memory devices with both CE and CE inputs allows the MAX792/MAX820 CE propagation delay to be bypassed ...
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... Lead free not available for CERDIP package. SUFFIX RESET THRESHOLD ( ______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits PIN-PACKAGE TOP VIEW 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP 16 Plastic DIP RESET IN/INT 16 Narrow SO LLIN/REFOUT ...
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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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...