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DS2505 Datasheet(数据表) 6 Page - Dallas Semiconductor

部件型号  DS2505
说明  16-kbit Add-Only Memory
下载  24 Pages
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制造商  DALLAS [Dallas Semiconductor]
网页  http://www.dalsemi.com
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DS2505 Datasheet(HTML) 6 Page - Dallas Semiconductor

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DS2505
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The Status Memory address range of the DS2505 extends from 000 to 13FH. The memory locations
008H to 01FH, 028H to 03FH, 048H to 0FFH and 140H to 7FFH are physically not implemented.
Reading these locations will usually result in FFH bytes. Attempts to write to these locations will be
ignored. If the bus master sends a starting address higher than 7FFH, the five most significant address
bits are set to 0s by the internal circuitry of the chip. This will result in a mismatch between the CRC
calculated by the DS2505 and the CRC calculated by the bus master, indicating an error condition.
DS2505 MEMORY MAP Figure 4
STATUS MEMORY MAP




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