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DS1207 Datasheet(PDF) 14 Page - Dallas Semiconductor

Part # DS1207
Description  Time Key
PDF  17 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1207 Datasheet(HTML) 14 Page - Dallas Semiconductor

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DS1207
021798 14/17
FUNCTION CODES: FIRST BYTE OF COMMAND WORD Figure 13
MSB
LSB
READ
WRITE
READ DAY CLOCK COUNTER
WRITE NUMBER OF DAYS REMAINING
READ NUMBER OF DAYS REMAINING
LOCK NUMBER OF DAYS COUNT
STOP OSCILLATOR
ARM OSCILLATOR
0
1100
010
1
0011
101
1
1110
001
1
1110
010
1
1110
011
1
1110
100
1
1110
101
1
1110
110
DATA TRANSFER: NORMAL MODE, READ OR WRITE SECURE READ/WRITE MEMORY
Figure 14
CLOCK
CLK
1
D0
CC
Q63
01
23
D64
DQ1
DQ0
DQ126
DG384
READ/WRITE
128 BITS
RESET
COMMAND
WORD
READ
64 BITS
WRITE
64 BITS
DATA TRANSFER: PROGRAM MODE, PROGRAM IDENTIFICATION AND SECURITY MATCH
MEMORY Figure 15A
CLOCK
CLK
1
QO
CC
Q0
Q1
Q62
Q63
Q1
Q62
Q63
01
2
23
RESET
WRITE
64 BITS
WRITE
64 BITS
COMMAND
WORD



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