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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT25QL641 датащи(PDF) 41 Page - Renesas Technology Corp |
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AT25QL641 датащи(HTML) 41 Page - Renesas Technology Corp |
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41 / 80 page  DS-AT25QL641-130 Rev. G Page 41 Sep 14, 2022 © 2022 Renesas Electronics AT25QL641 Datasheet 8.18 32-kByte Block Erase (52h) The 32 kB Block Erase command is used for a 32-kByte block erase operation. Prior to the Block Erase Command, a Write Enable (06h) command must be issued. The command is initiated by driving the CS pin low and shifting the command code 52h followed b y a 24-bit block address (A23-A0). See Figure 31 and Figure 32 below. The CS pin must go high after the eighth bit of the last byte has been latched in, otherwise the Block Erase command is not executed. After CS is driven high, the self-timed Block Erase command commences for a time duration of tBE1 (see Table 26, AC Electrical Characteristics). While the block erase operation is in progress, the Read Status Register (05h) command may still be used to read the status of the BUSY bit. The BUSY bit is a 1 during the block erase operation and becomes a 0 when the cycle is finished and the device is ready to accept other commands again. When the BUSY bit is asserted, the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. Figure 31. 32 kB Block Erase Command (SPI Mode) Figure 32. 32 kB Block Erase Command (QPI Mode) 35 246 7 29 31 30 9 8 23 22 2 1 0 01 Mode 3 Mode 0 Mode 3 Mode 0 High-Impedance SO SI SCK CS Command (52h) 24-Bit Address MSB SCK CS 1 02 3 4 5 Mode 3 Command 52h A23-16 A15-8 A7-0 Mode 0 8 12 11 15 14 10 9 13 16 20 18 19 23 22 17 21 IO IO IO IO 0 4 2 3 7 6 1 5 67 Mode 3 Mode 0 MSB |
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