DS1347：小电流、SPI兼容实时时钟
TDFN封装有效节省电路板空间，可驱动表面贴装晶体
DS1346/DS1347 SPI™兼容实时时钟(RTC)内置实时时钟/日历和31 x 8位静态随机存储器(SRAM)。实时时钟/日历提供秒、分钟、小时、星期、日、月、年以及世纪信息。器件还带有可编程时间/日期闹钟。对于少于31天的月份，在月末自动调整日期，包括闰年修正。时钟具有24小时或12小时工作模式，带有低电平有效AM/PM指示。器件工作在+2V至+5.5V电源范围，采用超小型8引脚TDFN封装，工作在-40°C至+85°C工业级温度范围。
关键特性
| DS1346, DS1347: Typical Operating Circuit 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | DS1347.pdf | Rev 5; 04/2015 |
关键参数
| Part Number | Interface | VSUPPLY (V) | Time Keeping Current (nA) | CL (pF) | Memory Type | Memory Size (Bytes) | Time of Day Alarms | Functions | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|
| typ | See Notes | |||||||||
| DS1347 | SPI | 2.0 to 5.5 | 350 | 12.5 | SRAM | 31 | 1 | RTC | TDFN-EP/8 | $1.40 @1k |
技术资料
- Tips for Writing Bulletproof Real-Time Clock Control Code
- State Machine Logic in Binary-Coded Decimal (BCD)-Formatted Real-Time Clocks
- Interfacing an SPI RTC with a Motorola DSP
- Interfacing an SPI-Interface RTC with a PIC Microcontroller
- Design Considerations for Maxim Real-Time Clocks
- Interfacing SPI Real-Time Clocks (RTCs) with a Microcontroller
- Crystal Considerations with Maxim Real-Time Clocks (RTCs)
质量和环境数据
相关产品
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| DS1347T+ | 生产中 | TDFN-EP,；8引脚；9.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1347T+T&R | 生产中 | TDFN-EP,；8引脚；9.6mm² | -40°C至+85°C | RoHS/无铅：无铅 |
- DS1347.pdf DS1347
- DS1347.pdf DS1347
- DS1347.pdf DS1347
- Tips for Writing Bulletproof Real-Time Clock Control Code DS3234
- State Machine Logic in Binary-Coded Decimal (BCD)-Formatted Real-Time Clocks DS3234
- Interfacing an SPI RTC with a Motorola DSP DS3234
- Interfacing an SPI-Interface RTC with a PIC Microcontroller DS3234
- Design Considerations for Maxim Real-Time Clocks DS3234
- Interfacing SPI Real-Time Clocks (RTCs) with a Microcontroller DS3234
- Crystal Considerations with Maxim Real-Time Clocks (RTCs) DS3234
- DS1347.pdf DS1347
- DS1347.pdf DS1347
