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M36D0R6040T0 bảng dữ liệu(PDF) 7 Page - STMicroelectronics |
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M36D0R6040T0 bảng dữ liệu(HTML) 7 Page - STMicroelectronics |
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7 / 18 page ![]() 7/18 M36D0R6040T0, M36D0R6040B0 If VPPF is kept in a low voltage range (0V to VDDF) VPPF is seen as a control input. In this case a volt- age lower than VPPLKF gives an absolute protec- tion against Program or Erase, while VPPF > VPP1F enables these functions (see Tables 7 and 8, DC Characteristics for the relevant values). VPPF is only sampled at the beginning of a Program or Erase; a change in its value after the operation has started does not have any effect and Program or Erase operations continue. If VPPF is in the range of VPPHF it acts as a power supply pin. In this condition VPPF must be stable until the Program/Erase algorithm is completed. VSS Ground. VSS is the common ground refer- ence for all voltage measurements in the Flash (core and I/O Buffers) and PSRAM chips. Note: Each Flash memory device in a system should have its supply voltage (VDDF) and the program supply voltage VPPF decoupled with a 0.1µF ceramic capacitor close to the pin (high frequency, inherently low inductance capaci- tors should be as close as possible to the package). See Table 5., AC Measurement Load Circuit. The PCB track widths should be suffi- cient to carry the required VPPF program and erase currents. |
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