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SST25PF080B-80-4C-SAE Datasheet(PDF) 17 Page - Microchip Technology |
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SST25PF080B-80-4C-SAE Datasheet(HTML) 17 Page - Microchip Technology |
17 / 32 page 2012 Microchip Technology Inc. DS25134A-page 17 SST25PF080B 4.8.6 JEDEC READ-ID The JEDEC Read-ID instruction identifies the device as SST25PF080B and the manufacturer as Microchip. The device information can be read from executing the 8-bit command, 9FH. Following the JEDEC Read-ID instruction, the 8-bit manufacturer’s ID, BFH, is output from the device. After that, a 16-bit device ID is shifted out on the SO pin. Byte 1, BFH, identifies the manufac- turer as Microchip. Byte 2, 25H, identifies the memory type as SPI Serial Flash. Byte 3, 8EH, identifies the device as SST25PF080B. The instruction sequence is shown in Figure 4-18. The JEDEC Read ID instruction is terminated by a low to high transition on CE# at any time during data output. FIGURE 4-18: JEDEC READ-ID SEQUENCE 25 8E 25137 JEDECID.1 CE# SO SI SCK 012345678 HIGH IMPEDANCE 15 16 14 28 29 30 31 BF MODE 3 MODE 0 MSB MSB 9 10111213 1718 32 34 9F 19 20 21 22 23 33 24 25 26 27 TABLE 4-6: JEDEC READ-ID DATA Manufacturer’s ID Device ID Memory Type Memory Capacity Byte1 Byte 2 Byte 3 BFH 25H 8EH |
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