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ST25W04 bảng dữ liệu(PDF) 8 Page - STMicroelectronics |
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ST25W04 bảng dữ liệu(HTML) 8 Page - STMicroelectronics |
8 / 16 page SCL SDA SCL SDA SDA START CONDITION SDA INPUT SDA CHANGE AI00792 STOP CONDITION 1 23 7 89 MSB ACK START CONDITION SCL 1 23 7 89 MSB ACK STOP CONDITION Figure 6. I2C Bus Protocol Multibyte Write. For the Multibyte Write mode, the MODE pin must be at VIH. The Multibyte Write mode can be started from any address in the memory. The master sends from one up to 4 bytes of data, which are each acknowledged by the mem- ory. The transfer is terminated by the master gen- erating a STOP condition. The duration of the write cycle is tW = 10ms maximum except when bytes are accessed on 2 rows (that is have different values for the 6 most significant address bits A7- A2), the programming time is then doubled to a maximum of 20ms. Writing more than 4 bytes in the Multibyte Write mode may modify data bytes in an adjacent row (one row is 8 bytes long). However, the Multibyte Write can properly write up to 8 consecutive bytes as soon as the first address of these 8 bytes is the first address of the row, the 7 following bytes being written in the 7 following bytes of this same row. Page Write. For the Page Write mode, the MODE pin must be at VIL. The Page Write mode allows up to 8 bytes to be written in a single write cycle, provided that they are all located in the same ’row’ in the memory: that is the 5 most significant mem- 8/16 ST24/25C04, ST24/25W04 |
Số phần tương tự - ST25W04 |
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Mô tả tương tự - ST25W04 |
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