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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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25AA040AX-E/P 데이터시트(PDF) 7 Page - Microchip Technology |
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25AA040AX-E/P 데이터시트(HTML) 7 Page - Microchip Technology |
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7 / 30 page  © 2009 Microchip Technology Inc. DS21827F-page 7 25AA040A/25LC040A BLOCK DIAGRAM FIGURE 2-1: READ SEQUENCE SI SO SCK CS HOLD WP STATUS Register I/O Control Memory Control Logic X Dec HV Generator EEPROM Array Page Latches Y Decoder Sense Amp. R/W Control Logic VCC VSS TABLE 2-1: INSTRUCTION SET Instruction Name Instruction Format Description READ 0000 A8011 Read data from memory array beginning at selected address WRITE 0000 A8010 Write data to memory array beginning at selected address WRDI 0000 x100 Reset the write enable latch (disable write operations) WREN 0000 x110 Set the write enable latch (enable write operations) RDSR 0000 x101 Read STATUS register WRSR 0000 x001 Write STATUS register Note: A8 is the 9 th address bit, which is used to address the entire 512 byte array. x = don’t care. SO SI SCK CS 0 2345 6789 10 11 1 01 A8 0 0 0 01 A7 A6 A5 A4 A1 A0 76543210 Data Out High-impedance A3 A2 Lower Address Byte 12 13 14 15 16 17 18 19 20 21 22 23 Instruction+Address MSb |
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