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ST7FLCD1 bảng dữ liệu(PDF) 10 Page - STMicroelectronics |
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10 / 95 page General Information ST7FLCD1 10/95 1.5 External Connections Figure 3 shows the recommended external connections for the device. The VPP pin is only used for programming or erasing the Flash memory array, and must be tied to a 10 K pulldown resistor for normal operation. The 10 nF and 0.1 µF decoupling capacitors on the power supply lines are a suggested EMC performance/cost tradeoff. The external RC reset network (including the mandatory 1K serial resistor) is intended to protect the device against parasitic resets, especially in noisy environments. Unused I/Os should be tied high to avoid any unnecessary power consumption on floating lines. An alternative solution is to program the unused ports as inputs with pull-up. Figure 3: Recommended External Connections VPP VDD VSS OSCIN OSCOUT RESET VDD 0.1µF + See Clocks Section VDD 0.1µF 0.1µF EXTERNAL RESET CIRCUIT Or configure unused I/O ports Unused I/O 10nF 4.7K 10K by software as input with pull-up VDD 1K 10K |
Số phần tương tự - ST7FLCD1 |
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Mô tả tương tự - ST7FLCD1 |
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