參數(shù)資料
型號(hào): DS17488
英文描述: 3V/5V Real-Time Clock
中文描述: 3V/5V實(shí)時(shí)時(shí)鐘
文件頁(yè)數(shù): 20/38頁(yè)
文件大小: 427K
代理商: DS17488
DS17485/DS17487
20 of 38
Figure 4.
DS17485/DS17487 EXTENDED REGISTER BANK DEFINITION
BANK 0
DV0 = 0
BANK 1
DV0 = 1
MSB
LSB
MSB
LSB
00
00
0D
0D
0E
0E
3F
3F
40
40
MODEL NUMBER BYTE
41
1ST BYTE SERIAL NUMBER
42
2ND BYTE SERIAL NUMBER
43
3RD BYTE SERIAL NUMBER
44
4TH BYTE SERIAL NUMBER
45
5TH BYTE SERIAL NUMBER
46
6TH BYTE SERIAL NUMBER
47
CRC BYTE
48
CENTURY BYTE
49
DATE ALARM
4A
EXTENDED CONTROL REG 4A
4B
EXTENDED CONTROL REG 4B
4C
RESERVED
4D
RESERVED
4E
RTC ADDRESS - 2
4F
RTC ADDRESS - 3
50
EXTENDED RAM ADDR - LSB
EXTENDED
64 BYTES - USER RAM
51
EXTENDED RAM ADDR - MSB
RAM
52
RESERVED
4k X 8
53
EXTENDED RAM DATA PORT
54
RESERVED
55
RESERVED
56
RESERVED
57
RESERVED
58
RESERVED
59
RESERVED
5A
RESERVED
5B
RESERVED
5C
RESERVED
5D
RESERVED
5E
RTC WRITE COUNTER
5F
RESERVED
7F
7F
TIMEKEEPING AND CONTROL
50 BYTES - USER RAM
TIMEKEEPING AND CONTROL
50 BYTES - USER RAM
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