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MAX691AMJE Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX691AMJE Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 17 page General Description The MAX691A/MAX693A/MAX800L/MAX800M micro- processor (µP) supervisory circuits are pin-compatible upgrades to the MAX691, MAX693, and MAX695. They improve performance with 30µA supply current, 200ms typ reset active delay on power-up, and 6ns chip- enable propagation delay. Features include write pro- tection of CMOS RAM or EEPROM, separate watchdog outputs, backup-battery switchover, and a RESET out- put that is valid with VCC down to 1V. The MAX691A/ MAX800L have a 4.65V typical reset-threshold voltage, and the MAX693A/MAX800Ms’ reset threshold is 4.4V typical. The MAX800L/MAX800M guarantee power-fail accuracies to ±2%. ________________________Applications Computers Controllers Intelligent Instruments Automotive Systems Critical µP Power Monitoring ____________________________Features o 200ms Power-OK/Reset Timeout Period o 1µA Standby Current, 30µA Operating Current o On-Board Gating of Chip-Enable Signals, 10ns max Delay o MaxCap® or SuperCap Compatible o Guaranteed R RE ES SE ET T Assertion to VCC = +1V o Voltage Monitor for Power-Fail or Low-Battery Warning o Power-Fail Accuracy Guaranteed to ±2% (MAX800L/M) o Available in 16-Pin Narrow SO, Plastic DIP, and TSSOP Packages Microprocessor Supervisory Circuits ________________________________________________________________ Maxim Integrated Products 1 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 RESET RESET WDO CE IN GND VCC VOUT VBATT TOP VIEW MAX691A MAX693A MAX800L MAX800M CE OUT WDI PFO PFI OSC SEL OSC IN LOW LINE BATT ON DIP/SO/TSSOP Pin Configuration MAX691A MAX693A MAX800L MAX800M VOUT VCC BATT ON CE OUT CE IN WDI PFO RESET VBATT PFI GND OSC IN OSC SEL 1 9 4 7 8 ADDRESS DECODE AUDIBLE ALARM 5V REGULATOR +8V 0.1 μF CMOS RAM 2 12 11 10 15 13 5 3 A0-A15 I/O NMI RESET μP LOW LINE WDO SYSTEM STATUS INDICATORS NO CONNECTION 0.47F* 1N4148 *MaxCap 614 Typical Operating Circuit 19-0094; Rev 11; 8/08 MaxCap is a registered trademark of Kanthal Globar, Inc. Ordering Information continued on last page. * Dice are specified at TA = +25°C, DC parameters only. Devices in PDIP, SO, and TSSOP 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. Lead free not available for CERDIP package. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ordering Information PART TEMP RANGE PIN- PACKAGE MAX691ACUE -0°C to +70°C 16 TSSOP MAX691ACSE -0°C to +70°C 16 Narrow SO MAX691ACWE -0°C to +70°C 16 Wide SO MAX691ACPE -0°C to +70°C 16 Plastic DIP MAX691AC/D -0°C to +70°C Dice* MAX691AEUE -0°C to +70°C 16 TSSOP MAX691AESE -40°C to +85°C 16 Narrow SO MAX691AEWE -40°C to +85°C 16 Wide SO MAX691AEPE -40°C to +85°C 16 Plastic DIP |
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