(China (Mainland))
Product Summary
The ds1238s-5 is a MicroManager. The ds1238s-5 provides all the necessary functions for power supply monitoring, resetcontrol, and memory backup in microprocessor based systems. A precise internal voltage reference and comparator circuit monitor power supply status. When an out of tolerance condition occurs, the microprocessor reset and power fail outputs are forced active, and static RAM control unconditionally write protects external memory. The ds1238s-5 also provides early warning detection of a user defined threshold by driving a non maskable interrupt. External reset control is provided by a pushbutton reset debounce circuit connected to the RST pin.
Parametrics
ds1238s-5 absolute maximum ratings: (1)Voltage on VCC Pin Relative to Ground: －0.5V to +7.0V; (2)Voltage on I/O Relative to Ground: －0.5V to VCC + 0.5V; (3)Voltage on IN Pin Relative to Ground: －3.5V to VCC + 0.5V; (4)Operating Temperature: 0°C to 70°C; (5)Operating Temperature (Industrial Version): －40℃ to +85℃; (6)Storage Temperature: －55℃ to +125℃; (7)Soldering Temperature: 260℃ for 10 seconds.
Features
ds1238s-5 features: (1) Warns microprocessor of an impending power failure; (2) Converts CMOS SRAM into nonvolatile memory; (3) Unconditionally write-protects memory when power supply is out of tolerance; (4) Delays write protection until completion of the current memory cycle; (5) Consumes less than 200 nA of battery current; (6) Controls external power switch for high current applications; (7) Debounces pushbutton reset; (8) Accurate 10% power supply monitoring.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
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 DS1238S-5 |
Maxim Integrated Products |
Supervisory Circuits |
Data Sheet |
Negotiable |
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DS1238S-5/T&R |
Maxim Integrated Products |
Supervisory Circuits |
Data Sheet |
Negotiable |
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DS1238S-5+ |
Maxim Integrated Products |
Supervisory Circuits |
Data Sheet |
Negotiable |
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DS1238S-5+T&R |
Maxim Integrated Products |
Supervisory Circuits |
Data Sheet |
Negotiable |
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