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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) 40 Page - Renesas Technology Corp |
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AT25QL641 датащи(HTML) 40 Page - Renesas Technology Corp |
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40 / 80 page  DS-AT25QL641-130 Rev. G Page 40 Sep 14, 2022 © 2022 Renesas Electronics AT25QL641 Datasheet 8.17 4-kByte Block Erase (20h) The Block Erase command is to erase the data of the selected block as being 1. The command is used for 4K- byte block. Prior to the Block Erase command, the Write Enable (06h) command must be issued. The command is initiated by driving the CS pin low and shifting the command code 20h followed by a 24-bit block address (A23-A0) as shown in Figure 29 and Figure 30. 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 goes high, the self-timed Block Erase command commences for a time duration of tSE (see Table 26, AC Electrical Characteristics). While the block erase operation is in progress, the Read Status Register (05h) command may still be accessed for checking 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 29. Block Erase Command (SPI Mode) Figure 30. Block Erase Command (QPI Mode) SCK CS SI 1 02 3 4 6 579 829 21 0 30 31 Command 20h 24-Bit Address Mode 3 Mode 0 Mode 3 Mode 0 MSB 23 22 SCK CS 1 0 2 345 Mode 3 Command A23-16 A15-8 A7-0 20h Mode 0 8 12 11 15 14 10 9 13 16 20 18 19 23 22 17 21 0 4 2 3 7 6 1 5 67 Mode 3 Mode 0 MSB IO 0 IO 1 IO 2 IO 3 |
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