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参数资料
| 型号： | DS1689SN+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 36/36页 |
| 文件大小： | 0K |
| 描述： | IC RTC SER NV RAM CTRL IN 28SOIC |
| 标准包装： | 1,000 |
| 类型： | 时钟/日历 |
| 特点： | NVSRAM |
| 存储容量： | 114B |
| 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： | 2.7 V ~ 3.3 V，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-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC |
| 包装： | 带卷 (TR) |
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DS1689/DS1693
9 of 36
minute with “don’t care” codes in the hours and minute alarm bytes. The “don’t care” codes in all three
alarm bytes create an interrupt every second. The three alarm bytes may be used in conjunction with the
date alarm as described in the Wakeup/Kickstart section. The century counter will be discussed later in
this text.
Table 1. Time, Calendar, and Alarm Data Modes
RANGE
ADDRESS
LOCATION
FUNCTION
DECIMAL
RANGE
BINARY DATA
MODE
BCD DATA
MODE
00H
Seconds
0-59
00-3B
00-59
01H
Seconds Alarm
0-59
00-3B
00-59
02H
Minutes
0-59
00-3B
00-59
03H
Minutes Alarm
0-59
00-3B
00-59
Hours 12-hr Mode
1-12
01-0C AM, 81-8C PM
01-12 AM, 81-92 PM
04H
Hours 24-hr Mode
0-23
00-17
00-23
Hours Alarm 12-hr
Mode
1-12
01-0C AM, 81-8C PM
01-12 AM, 81-92 PM
05H
Hours Alarm 24-hr
Mode
0-23
00-17
00-23
06H
Day of Week
Sunday=1
1-7
01-07
07H
Date of Month
1-31
01-1F
01-31
08H
Month
1-12
01-0C
01-12
09H
Year
0-99
00-63
00-99
BANK1, 48H
Century
0-99
00-63
00-99
BANK 1, 49H
Date Alarm
1-31
01-1F
01-31
CONTROL REGISTERS
The four control registers; A, B, C, and D reside in both bank 0 and bank 1. These registers are accessible
at all times, even during the update cycle.
NONVOLATILE RAM—RTC
The 114 general-purpose nonvolatile RAM bytes are not dedicated to any special function within the
DS1689/DS1693. They can be used by the application program as nonvolatile memory and are fully
available during the update cycle. This memory is directly accessible when bank 0 is selected.
INTERRUPT CONTROL
The DS1689/DS1693 include six separate, fully automatic sources of interrupt for a processor:
1. Alarm interrupt
2. Periodic interrupt
3. Update-ended interrupt
4. Wake-up interrupt
5. Kickstart interrupt
6. RAM clear interrupt
The conditions, which generate each of these independent interrupt conditions, are described in greater
detail elsewhere in this data sheet. This section describes the overall control of the interrupts.
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相关代理商/技术参数 |
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| DS1689S-TRL | 功能描述:IC RTC SER W/NV RAM CTRL 28-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| DS1691 | 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 |
| DS1691 WAF | 制造商:Texas Instruments 功能描述: |
| DS1691/1692 WAF | 制造商:Texas Instruments 功能描述: |
| DS1691A | 制造商:NSC 制造商全称:National Semiconductor 功能描述:(RS-422/RS-423) Line Drivers with TRI-STATE Outputs |
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