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STM1811 bảng dữ liệu(PDF) 6 Page - STMicroelectronics |
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STM1811 bảng dữ liệu(HTML) 6 Page - STMicroelectronics |
6 / 20 page STM1810/1811/1812/1813/1815/1816/1817/1818 6/20 PIN DESCRIPTIONS See Figure 2., Logic Diagram and Table 2., Signal Names for a brief overview of the signals connect- ed to this device. Active-Low RST Output (Push-pull). Pulses low when VCC drops below VRST, and stays low as long as VCC is below the reset threshold. It re- mains low for trec after VCC rises above the reset threshold. Active-Low RST Output (Open Drain). Pulses low when VCC drops below VRST, and stays low as long as VCC is below the reset threshold. It re- mains low for trec after VCC rises above the reset threshold. RST output has an internal 5.5k Ω pull- up resistor. Active-high RST Output (Push-pull). Pulses high when VCC drops below VRST, and stays high as long as VCC is below the reset threshold. It re- mains high for trec after VCC rises above the reset threshold. Active-Low RST Output (Open Drain with inter- nal 5.5k Ω pull-up) with Manual Reset Detect. Pulses low when VCC drops below VRST, or RST is externally pulled low for at least 1.5µs. It re- mains low for tPBRST after VCC rises above the re- set threshold, or after the external manual reset is released (see Figure 10., page 8). RST output has an internal 5.5k Ω pull-up resistor. VCC. Supply voltage and input for VRST compara- tor. VSS. Ground, is the reference for the power sup- ply. It must be connected to the system ground. Table 3. STM1810/STM1815 Table 4. STM1811/STM1816 Table 5. STM1812/STM1817 Table 6. STM1813/STM1818 Pin Name Function 1RST Active-low Reset Output (Push-pull) 2 VCC Supply Voltage and Input for Reset Threshold Monitor 3 VSS Ground Pin Name Function 1RST Active-low Reset Output (Open Drain, with internal 5.5k Ω pull-up resistor) 2 VCC Supply Voltage and Input for Reset Threshold Monitor 3 VSS Ground Pin Name Function 1 RST Active-high Reset Output (Push-pull) 2 VCC Supply Voltage and Input for Reset Threshold Monitor 3 VSS Ground Pin Name Function 1RST Active-low Reset Output (Open Drain, with internal 5.5k Ω pull-up) with Push-Button/Manual Reset Detect 2 VCC Supply Voltage and Input for Reset Threshold Monitor 3 VSS Ground |
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