MAX690AESA Maxim Integrated Products, MAX690AESA Datasheet
MAX690AESA
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... Information PART MAX690ACPA MAX690ACSA MAX690AC/D MAX690AEPA MAX690AESA MAX690AMJA Ordering Information continued on last page. * Dice are specified at T **Contact factory for availability and processing to MIL-STD-883. Devices in PDIP and SO packages are available in both leaded and lead-free packaging. Specify lead free by adding the + symbol at the end of the part number when ordering ...
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Microprocessor Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND ...
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Microprocessor Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued 4.75V to 5.5V for MAX690A/MAX802L/MAX805L unless otherwise noted.) A MIN MAX PARAMETER RESET Output Voltage Watchdog Timeout WDI Pulse Width WDI Input Threshold (Note ...
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Microprocessor Supervisory Circuits __________________________________________Typical Operating Characteristics OUTPUT VOLTAGE vs. LOAD CURRENT 5. + +2.8V BATT 4. +25°C A 4.90 4.85 SLOPE = 5Ω 4.80 4. (mA) ...
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Microprocessor Supervisory Circuits ______________________________________________________________Pin Description PIN MAX690A/MAX692A MAX805L MAX802L/MAX802M – _______________________________________________________________________________________ NAME Supply Output for CMOS RAM. When V V connects to V through ...
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Microprocessor Supervisory Circuits V BATT BATTERY-SWITCHOVER CIRCUITRY V CC 3.5V 1.25V WATCHDOG WDI TIMER MAX690A MAX692A 0.8V MAX802L MAX802M PFI MAX805L 1.25V GND ( ) ARE FOR MAX805L ONLY. Figure 1. Block Diagram _______________Detailed Description A microprocessor’s (µP’s) reset input ...
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Microprocessor Supervisory Circuits V BATT SW1 SW2 D1 D2 SUBSTRATE MAX690A MAX805L MAX802L D3 MAX692A MAX802M V OUT CONDITION SW1/SW2 V > Reset Threshold Open CC V < Reset Threshold and CC Open V > BATT V < ...
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Microprocessor Supervisory Circuits + OUT CC MAX692A MAX802M RESET V BATT + 100k 0.1F GND Figure 5. Using a SuperCap™ Backup Power Source with the MAX692A/MAX802M and a +5V ±10% Supply When V connects to V ...
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Microprocessor Supervisory Circuits no additional circuitry (see the Typical Operating Circuit). However, batteries with open-circuit voltages that are greater cannot be used for backup, as current is sourced into the substrate through the diode (D1 in Figure 3) when V ...
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Microprocessor Supervisory Circuits BUFFERED RESET TO OTHER SYSTEM COMPONENTS V CC MAX690A 4.7k MAX692A RESET MAX802L MAX802M GND Figure 8. Interfacing to µPs with Bidirectional Reset I/O 10 ______________________________________________________________________________________ V CC RESET GND ...
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Microprocessor Supervisory Circuits ________________________ Minimum Nominal Nominal Reset Reset Pulse Part Threshold Width Number (V) (ms) MAX690A/692A 4.65/4.40 140 MAX691A/693A 4.65/4.40 140/adj. MAX696 Adj. 35/adj. MAX697 Adj. 35/adj. MAX700 4.65/adj. 200 MAX703/704 4.65/4.40 140 MAX705/706 4.65/4.40 140 MAX706P 2.63 140 ...
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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. 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2005 Maxim Integrated Products ____________________Chip Topography ...