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DS1982-F5 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1982-F5
1-kbit Add-Only iButton™
Dallas Semiconductor -> Maxim Integrated
DS1982-F5 Datasheet PDF : 23 Pages
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HIERARCHICAL STRUCTURE FOR 1-WIRE PROTOCOL
Figure 2
DS1982
BUS
MASTER
OTHER
DEVICES
COMMAND
LEVEL:
1-WIRE ROM FUNCTION
COMMANDS (SEE FIGURE 9)
DS 1982
AVAILABLE
COMMANDS:
READ ROM
MATCH ROM
SEARCH ROM
SKIP ROM
DATA FIELD
AFFECTED:
64-BIT ROM
64-BIT ROM
64-BIT ROM
N/A
DS1982-SPECIFIC
MEMORY FUNCTION
COMMANDS
(SEE FIGURE 6)
WRITE MEMORY
WRITE STATUS BYTE
READ MEMORY
READ STATUS BYTE
READ DATA/GENERATE
8-BIT CRC
1024-BIT EPROM
EPROM STATUS BYTES
1024-BIT EPROM
EPROM STATUS BYTES
1024-BIT EPROM
64-BIT LASERED ROM
Figure 3
8-Bit CRC Code
48- Bit Serial Number
8- Bit Family Code (09h)
MSB
LSB MSB
LSB MSB
LSB
1-WIRE CRC GENERATOR
Figure 4
5 of 23
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