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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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CAT25640VI-GT3 Datenblatt(PDF) 9 Page - ON Semiconductor |
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CAT25640VI-GT3 Datenblatt(HTML) 9 Page - ON Semiconductor |
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9 / 19 page  CAT25640 http://onsemi.com 9 Byte Write Once the WEL bit is set, the user may execute a write sequence, by sending a WRITE instruction, a 16−bit address and data as shown in Figure 5. Only 13 significant address bits are used by the CAT25640. The rest are don’t care bits, as shown in Table 13. Internal programming will start after the low to high CS transition. During an internal write cycle, all commands, except for RDSR (Read Status Register) will be ignored. The RDY bit will indicate if the internal write cycle is in progress (RDY high), or the device is ready to accept commands (RDY low). Page Write After sending the first data byte to the CAT25640, the host may continue sending data, up to a total of 64 bytes, according to timing shown in Figure 6. After each data byte, the lower order address bits are automatically incremented, while the higher order address bits (page address) remain unchanged. If during this process the end of page is exceeded, then loading will “roll over” to the first byte in the page, thus possibly overwriting previously loaded data. Following completion of the write cycle, the CAT25640 is automatically returned to the write disable state. Table 13. BYTE ADDRESS Device Address Significant Bits Address Don’t Care Bits # Address Clock Pulses CAT25640 A12 − A0 A15 − A13 16 Figure 5. Byte WRITE Timing SCK SI SO 00 0 0 0 1 0 D7 D6 D5 D4 D3 D2 D1 D0 01 2345678 OPCODE DATA IN HIGH IMPEDANCE BYTE ADDRESS* 21 22 23 24 25 26 27 28 29 30 31 Dashed Line = mode (1, 1) CS A0 AN 0 * Please check the Byte Address Table (Table 13) Figure 6. Page WRITE Timing SCK SI SO 00 0 0 0 1 0 BYTE ADDRESS* Data Byte 1 01234 5678 21 22 23 24−31 32−39 Data Byte N OPCODE 7..1 0 24+(N−1)x8−1 .. 24+(N−1)x8 24+Nx8−1 DATA IN HIGH IMPEDANCE Dashed Line = mode (1, 1) CS AN A0 Data Byte 3 Data Byte 2 0 * Please check the Byte Address Table (Table 13) |
Ähnliche Teilenummer - CAT25640VI-GT3 |
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Ähnliche Beschreibung - CAT25640VI-GT3 |
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