DS1672：I²C、32位二进制计数器RTC
低电压串行时钟芯片，内部包括超低电压时钟、电源监视电路、电源失效开关和涓流充电选项，单一芯片可替代多个分立元件
DS1672低电压计时芯片包含32位计数器和电源监视电路。32位计数器用作秒计数，通过软件算法可产生时间、星期、月、年信息。精准的温度补偿基准和比较器用来监视VCC的状态。当电源电压超出容限时，电源失效信号可强制系统复位。当VCC恢复到容限范围以内时，复位状态将继续保持250ms，以便电源和处理器达到稳定状态。
关键特性
| DS1672：典型工作电路 |
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | DS1672.pdf | Rev 5; 10/2011 |
关键参数
| Part Number | Interface | VSUPPLY (V) | Time Keeping Current (nA) | CL (pF) | Memory Type | Time of Day Alarms | Functions | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|
| typ | See Notes | ||||||||
| DS1672 | I2C |
| 425 | 6 | None | 0 |
|
| $1.30 @1k |
技术资料
- Tips for Writing Bulletproof Real-Time Clock Control Code
- Oscillator Design Considerations for Low-Current Applications
- Selecting a Backup Source for Real-Time Clocks
- Using the DS32kHz with Maxim Real-Time Clocks
- Using the DS1672 Low-Voltage Serial Timekeeping IC
- Lithium Coin-Cell Batteries: Predicting an Application Lifetime
- Design Considerations for Maxim Real-Time Clocks
- Using the Dallas Tricklecharge Timekeeper
- Crystal Considerations with Maxim Real-Time Clocks (RTCs)
质量和环境数据
相关产品
- DS1371：I²C、32位二进制计数器看门狗时钟
订购型号
| 型号 | 注 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|---|
| DS1672-2 | 停止供货 | DS1672-2+ | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1672-2+ | 生产中 | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672-3 | 停止供货 | DS1672-3+ | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1672-3+ | 生产中 | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672-33 | 停止供货 | DS1672-33+ | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1672-33+ | 生产中 | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672S-2+ | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672S-3 | 3V | 停止供货 | DS1672S-3+ | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1672S-3+ | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672S-3+T&R | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| 型号 | 注 | 状况 | 推荐替代产品 | 封装：类型 引脚 占位面积封装图 编码/变更 * | 温度 | RoHS/无铅？ |
| DS1672S-33 | 3.3V | 停止供货 | DS1672S-33+ | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1672S-33+ | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672S-33+T&R | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672S-33/T&R | 停止供货 | DS1672S-33+T&R | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1672U-2+ | 生产中 | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672U-3 | 3V | 停止供货 | DS1672U-3+ | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1672U-3+ | 生产中 | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672U-33 | 3.3V | 停止供货 | DS1672U-33+ | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1672U-33+ | 生产中 | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1672U-33+T&R | 生产中 | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| 型号 | 注 | 状况 | 推荐替代产品 | 封装：类型 引脚 占位面积封装图 编码/变更 * | 温度 | RoHS/无铅？ |
| DS1672U-33/T&R | 停止供货 | DS1672U-33+T&R | µMAX,；8引脚；15.6mm² | -40°C至+85°C | RoHS/无铅：否 |
- DS1672.pdf DS1672
- DS1672.pdf DS1672
- DS1672.pdf DS1672
- Tips for Writing Bulletproof Real-Time Clock Control Code DS3234
- Oscillator Design Considerations for Low-Current Applications DS17885
- Selecting a Backup Source for Real-Time Clocks DS3234
- Using the DS32kHz with Maxim Real-Time Clocks DS17885
- Using the DS1672 Low-Voltage Serial Timekeeping IC DS1672
- Lithium Coin-Cell Batteries: Predicting an Application Lifetime DS9034PCX
- Design Considerations for Maxim Real-Time Clocks DS3234
- Using the Dallas Tricklecharge Timekeeper DS1672
- Crystal Considerations with Maxim Real-Time Clocks (RTCs) DS3234
- DS1672.pdf DS1672
- DS1672.pdf DS1672
