Key facts
- Brand
- STMicroelectronics
- Model
- STM704
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics STM690A/STM692A/STM703/STM704/STM802/STM805/STM817/STM818/STM819 Supervisor Manual
The STM690A, STM692A, STM703, STM704, STM802, STM805, STM817, STM818 and STM819 supervisors are 5 V supervisory devices that provide reset, watchdog, battery‑switchover and power‑fail monitoring for microprocessor systems. They are offered in 8‑pin SOIC and TSSOP packages and support external LPSRAM non‑volatile storage.
The manual includes functional block diagrams, pin descriptions, timing waveforms, electrical characteristics, package mechanical data, ordering information and a revision history. It serves designers and system integrators who need to implement reliable power‑management and reset control in their designs.
STMicroelectronics STM704 specifications
| Operating voltage | 5 V |
|---|---|
| Watchdog timer time | 1.6 sec (typ) |
| Low battery supply current | 0.4 uA (typ) |
| Low supply current | 40 uA (typ) |
| Operating temperature | -40 °C to +85 °C |
| Package types | SO8, TSSOP8 |
Source: ST STM690A STM692A STM703 STM704 STM802 STM805 STM817/8/9 handbook
All STMicroelectronics STM704 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the watchdog timer time?
The internal watchdog timer runs out and triggers a reset if the input remains high or low for 1.6 seconds.
From: ST STM690A STM692A STM703 STM704 STM802 STM805 STM817/8/9 handbook
Which models have a power-fail comparator?
The power-fail comparator is available on most models except the STM818.
From: ST STM690A STM692A STM703 STM704 STM802 STM805 STM817/8/9 handbook
What is the package type for these supervisors?
These devices are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package.
From: ST STM690 STM704 STM795 STM802 STM804 STM805 STM806 handbook
Do these devices support external LPSRAM?
Yes, they provide the ability to non-volatile and write-protect external LPSRAM.
From: ST STM690 STM704 STM795 STM802 STM804 STM805 STM806 handbook
What is the typical watchdog timer timeout period?
The watchdog timer timeout is typically 1.6 seconds.
What is the low‑battery supply current of the supervisor devices?
The low‑battery supply current is typically 0.4 µA.