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參數(shù)資料
| 型號： | DS1202 |
| 英文描述： | Serial Timekeeping Chip |
| 中文描述： | 串行時鐘芯片 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大小： | 100K |
| 代理商： | DS1202 |
DS1202, DS1202S
032697 4/11
REGISTER SUMMARY
A register data format summary is shown in Figure 4.
CRYSTAL SELECTION
A 32.768 KHz crystal, can be directly connected to the
DS1202 via pins 2 and 3 (X1, X2). The crystal selected
for use should have a specified load capacitance (CL) of
6 pF. The crystal is connected directly to the X1 and X2
pins. There is no need for external capacitors or resis-
tors. Note: X1 and X2 are very high impedance nodes.
It is recommended that they and the crystal be guard–
ringed with ground and that high frequency signals be
kept away from the crystal area. For more information
on crystal selection and crystal layout considerations,
please consult Application Note 58, “Crystal Consider-
ations with Dallas Real Time Clocks”.
DATA TRANSFER SUMMARY
Figure 3
SCLK
I/O
RST
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
R/W
A0
A1
A2
A3
A4
1
ADDRESS COMMAND
DATA INPUT/OUTPUT
SINGLE BYTE TRANSFER
SCLK
I/O
0
1
2
3
4
5
6
7
0
1
2
4
5
6
7
1
1
1
1
1
1
ADDRESS COMMAND
DATA I/O BYTE N
BURST MODE TRANSFER
RST
R/W
DATA I/O BYTE 1
R/C
R/C
FUNCTION
BYTE N
SCLK n
CLOCK
8
72
RAM
24
200
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1202N | Serial Timekeeping Chip |
| DS1202S | Serial Timekeeping Chip |
| DS1205S | MultiKey Chip |
| DS1205V | MultiKey |
| DS1208 | dallas semiconductor reliability report |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1202N | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Serial Timekeeping Chip |
| DS1202S | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Serial Timekeeping Chip |
| DS1202S8 | 制造商:Maxim Integrated Products 功能描述: |
| DS1202S-8 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Serial Timekeeping Chip |
| DS1202SN | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Serial Timekeeping Chip |
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