データシートサーチシステム |
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GD25B257D データシート(PDF) 61 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25B257D データシート(HTML) 61 Page - GigaDevice Semiconductor (Beijing) Inc. |
61 / 92 page 3.3V Uniform Sector Dual and Quad Serial Flash GD25B257D 61 8.30. Read Manufacture ID/ Device ID Dual I/O (92H) The Read Manufacturer/Device ID Dual I/O command is an alternative to the Release from Power-Down / Device ID command that provides both the JEDEC assigned Manufacturer ID and the specific Device ID by dual I/O. The command is initiated by driving the CS# pin low and shifting the command code “92H” followed by a 24-bit address (A23-A0) of 000000H. After which, the Manufacturer ID and the Device ID are shifted out on the falling edge of SCLK with most significant bit (MSB) first as shown below. If the 24-bit address is initially set to 000001H, the Device ID will be read first. Figure 67. Read Manufacture ID/ Device ID Dual I/O Sequence Diagram Command 0 1 2 3 4 5 6 7 92H CS# SCLK SI(IO0) SO(IO1) 8 9 10 11 12 13 14 15 6 4 2 0 6 4 2 0 16 17 18 19 20 21 22 23 6 4 2 0 6 4 2 0 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 A23-16 A15-8 A7-0 M7-0 CS# 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 SI(IO0) SO(IO1) 6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 SCLK MFR ID Device ID 40 41 42 43 6 4 2 0 7 5 3 1 44 45 46 47 6 4 2 0 7 5 3 1 MFR ID (Repeat) Device ID (Repeat) MFR ID (Repeat) Device ID (Repeat) |
同様の部品番号 - GD25B257D |
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同様の説明 - GD25B257D |
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