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NAND256-A датащи(PDF) 29 Page - STMicroelectronics |
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NAND256-A датащи(HTML) 29 Page - STMicroelectronics |
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29 / 57 page ![]() 29/57 NAND128-A, NAND256-A, NAND512-A, NAND01G-A Table 11. Status Register Bits Read Electronic Signature The device contains a Manufacturer Code and De- vice Code. To read these codes two steps are re- quired: 1. first use one Bus Write cycle to issue the Read Electronic Signature command (90h) 2. then perform two Bus Read operations – the first will read the Manufacturer Code and the second, the Device Code. Further Bus Read operations will be ignored. Refer to Table 12., Electronic Signature, for infor- mation on the addresses. Table 12. Electronic Signature Bit Name Logic Level Definition SR7 Write Protection '1' Not Protected '0' Protected SR6 Program/ Erase/ Read Controller '1' P/E/R C inactive, device ready '0' P/E/R C active, device busy SR5, SR4, SR3, SR2, SR1 Reserved Don’t Care SR0 Generic Error ‘1’ Error – operation failed ‘0’ No Error – operation successful Part Number Manufacturer Code Device code NAND128R3A 20h 33h NAND128W3A 73h NAND128R4A 0020h 0043h NAND128W4A 0053h NAND256R3A 20h 35h NAND256W3A 75h NAND256R4A 0020h 0045h NAND256W4A 0055h NAND512R3A 20h 36h NAND512W3A 76h NAND512R4A 0020h 0046h NAND512W4A 0056h NAND01GR3A 20h 39h NAND01GW3A 79h NAND01GR4A 0020h 0049h NAND01GW4A 0059h |
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