STM804TM6F
数据手册.pdfSTM804系列 3.075 V 140 ms 3 V 监控器 带电池切换 - SOIC-8
The STM690/704/795/802/804/805/806 supervisors are self-contained devices which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external LPSRAM. A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition. When an invalid VCCcondition occurs, the reset output RST is forced low or high in the case of RST. These devices also offer a watchdog timer except for STM704/795/806 as well as a power-fail comparator except for STM795 to provide the system with an early warning of impending power failure.
These devices are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package.
**Key Features**
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- RST orRST outputs
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- NVRAM supervisor for external LPSRAM
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- Chip enable gating STM795 only for external LPSRAM 7 ns max prop delay
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- Manual push-button reset input
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- 200 ms typ trec
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- Watchdog timer - 1.6 s typ
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- Automatic battery switchover
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- Low battery supply current - 0.4 μA typ
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- Power-fail comparator PFI/PFO
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- Low supply current - 40 μA typ
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- GuaranteedRST RST assertion down to VCC = 1.0 V
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- Operating temperature: –40 °C to 85 °C industrial grade
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- RoHS compliance
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- Lead-free components are compliant with the RoHS directive