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M36DR432BD bảng dữ liệu(PDF) 9 Page - STMicroelectronics |
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M36DR432BD bảng dữ liệu(HTML) 9 Page - STMicroelectronics |
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9 / 52 page ![]() 9/52 M36DR432AD, M36DR432BD the memory and reduces the power consumption to the standby level. ES can also be used to con- trol writing to the SRAM memory array, while WS remains at VIL. It is not allowed to set EF at VIL and ES at VIL at the same time. SRAM Write Enable (WS). The Write Enable in- put controls writing to the SRAM memory array. WS is active Low. SRAM Output Enable (GS). The Output Enable gates the outputs through the data buffers during a read operation of the SRAM chip. GS is active Low. SRAM Upper Byte Enable (UBS). Enables the upper bytes for SRAM (DQ8-DQ15). UBS is active Low. SRAM Lower Byte Enable (LBS). Enables the lower bytes for SRAM (DQ0-DQ7). LBS is active Low. VDDS Supply Voltage (1.65V to 2.2V). VDDS is the SRAM power supply for all operations. Note: Each device in a system should have VDDF and VPPF decoupled with a 0.1µF capaci- tor close to the pin. See Figure 7, AC Measure- ment Load Circuit. The PCB trace widths should be sufficient to carry the required VPPF program and erase currents. |
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