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參數(shù)資料
| 型號： | DS1685Q-3 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 11/34頁 |
| 文件大小： | 455K |
| 代理商： | DS1685Q-3 |
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DS1685/DS1687 3V/5V Real-Time Clocks
19 of 34
Figure 5. DS1685/DS1687 Register Map and Extended Register Bank Definition
MSB
BANK 0
DV0
= 0
LSB
MSB
BANK 1
DV0 =
1
LSB
00
0D
TIMEKEEPING AND CONTROL
0D
TIMEKEEPING AND CONTROL
0E
3F
50 BYTES-USER RAM
3F
50 BYTES-USER RAM
40
MODEL NUMBER BYTE
1
ST BYTE SERIAL NUMBER
41
2
ND BYTE SERIAL NUMBER
42
3
RD BYTE SERIAL NUMBER
43
4
TH BYTE SERIAL NUMBER
44
5
TH BYTE SERIAL NUMBBER
45
6
TH BYTE SERIAL NUMBER
46
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 ADDRESS
51
RESERVED
52
RESERVED
53
EXTENDED RAM DATA PORT
54
RESERVED
7F
64 BYTES-USER RAM
EXTENDED
RAM
128 x 8
7F
When bank 1 is selected, the clock/calendar registers and the original 50 bytes of user RAM still appear as bank 0.
However, the registers that provide control and status for the extended functions are accessed in place of the
additional 64 bytes of user RAM. The major functions controlled by the extended registers are listed below:
1) 64-Bit Silicon Serial Number
5) Wake Up
2) Century counter
6) Kickstart
3) Date Alarm
7) RAM Clear Control/Status
4) Auxiliary Battery Control/Status
8) 128 Bytes Extended RAM Access
The bank selection is controlled by the state of the DV0 bit in register A. To access bank 0, the DV0 bit should be
written to a 0. To access bank 1, DV0 should be written to a 1. Register locations designated as reserved in the
bank 1 map are reserved for future use by Dallas Semiconductor. Bits in these locations cannot be written and
return a 0 if read.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1685S-3 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| DS1685E-5 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| DS1685QN-3 | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| DS1685QN-5 | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| DS1685SN-5 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1685Q-3/T&R | 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1685Q-3/TR | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clocks |
| DS1685Q-3_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3V/5V Real-Time Clocks |
| DS1685Q-3+ | 功能描述:實(shí)時(shí)時(shí)鐘 3V/5V RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1685Q-3+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 242BYTE 28PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC 3V 64-BIT Y2KC 28-PLCC 制造商:Maxim Integrated Products 功能描述:Real Time Clock 3V/5V RTC |
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