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参数资料
| 型号： | DS1685QN-5+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/34页 |
| 文件大小： | 0K |
| 描述： | IC RTC 5V 64-BIT Y2KC IND 28PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 37 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，NVSRAM，方波输出，Y2K |
| 存储容量： | 242B |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电压 - 电源，电池： | 2.5 V ~ 3.7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-LCC（J 形引线） |
| 供应商设备封装： | 28-PLCC（11.51x11.51） |
| 包装： | 管件 |
| 产品目录页面： | 1434 (CN2011-ZH PDF) |
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DS1685/DS1687 3V/5V Real-Time Clocks
18 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
TIMEKEEPING AND CONTROL
00
TIMEKEEPING AND CONTROL
0D
0E
50 BYTES-USER RAM
0E
50 BYTES-USER RAM
3F
7F
64 BYTES-USER RAM
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 NUMBBER
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 ADDRESS
51
RESERVED
52
RESERVED
53
EXTENDED RAM DATA PORT
54
RESERVED
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
2) Century counter
3) Date Alarm
4) Auxiliary Battery Control/Status
5) Wake Up
6) Kickstart
7) RAM Clear 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 Maxim Integrated. Bits in these locations cannot be written and return a
0 if read.
EXTENDED
RAM
128 x 8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1685QN-5/T&R | 制造商:Maxim Integrated Products 功能描述:IC RTC 5V 64-BIT Y2KC IND 28PLCC |
| DS1685QN-5/T&R | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1685QN-5/TR | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:3V/5V Real-Time Clocks |
| DS1685QN-5_12 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:3V/5V Real-Time Clocks |
| DS1685QN-5+ | 功能描述:实时时钟 3V/5V RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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