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STM708 датащи(PDF) 4 Page - STMicroelectronics |
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STM708 датащи(HTML) 4 Page - STMicroelectronics |
4 / 27 page STM705/706/707/708/813L 4/27 SUMMARY DESCRIPTION The STM705/706/707/708/813L Supervisors are self-contained devices which provide micropro- cessor supervisory functions. A precision voltage reference and comparator monitors the VCC input for an out-of-tolerance condition. When an invalid VCC condition occurs, the reset output (RST) is forced low (or high in the case of RST). These devices also offer a watchdog timer (except for STM707/708) as well as a power-fail compara- tor 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. Figure 2. Logic Diagram (STM705/706/813L) Note: 1. For STM705/706 only. 2. For STM813L only. Figure 3. Logic Diagram (STM707/708) Table 2. Signal Names Note: 1. For STM813L only. AI08825 VCC STM705/706; STM813L VSS WDO RST(1) WDI PFI MR RST(2) PFO MR Push-button Reset Input WDI Watchdog Input WDO Watchdog Output RST Active-Low Reset Output RST(1) Active-High Reset Output VCC Supply Voltage PFI Power-fail Input PFO Power-fail Output VSS Ground NC No Connect AI08826 VCC STM707/708 VSS RST RST MR PFI PFO |
Аналогичный номер детали - STM708 |
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Аналогичное описание - STM708 |
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