DS1678：实时事件记录器
DS1678为实时时钟(RTC)事件记录仪，用来记录每次触发/INT引脚的非周期、异步事件的时间和日期。该器件记录第一次事件发生时的秒、分、时、星期、日期、月、年及世纪信息，并开启16位历时计数器(ETC)。随后发生的事件将触发ETC记录，存储在事件记录存储器中。最多可记录1025个事件。器件工作在VCC或VBAT供电状态时均可记录所发生的事件。
关键特性
| DS1678：典型工作电路 |
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | DS1678.pdf | Rev 3; 09/2006 |
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 | |||||||||
| DS1678 | I2C | 5 | 300 | 12.5 | NV SRAM | 32 | 1 | RTC |
| $2.99 @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
- Oscillator Design Considerations for Low-Current Applications
- Selecting a Backup Source for Real-Time Clocks
- How to Use the DS1678 Real-Time Event Recorder
- Using the DS32kHz with Maxim Real-Time Clocks
- Lithium Coin-Cell Batteries: Predicting an Application Lifetime
- Design Considerations for Maxim Real-Time Clocks
- Crystal Considerations with Maxim Real-Time Clocks (RTCs)
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| DS1678 | 停止供货 | DS1678+ | PDIP(N),；8引脚；81.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1678+ | 生产中 | PDIP(N),；8引脚；81.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1678S | 停止供货 | DS1678S+ | SOIC,；8引脚；44.1mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1678S+ | 生产中 | SOIC,；8引脚；44.1mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1678S+T&R | 生产中 | SOIC,；8引脚；44.1mm² | -40°C至+85°C | RoHS/无铅：无铅 |
- DS1678.pdf DS1678
- Tips for Writing Bulletproof Real-Time Clock Control Code DS3234
- State Machine Logic in Binary-Coded Decimal (BCD)-Formatted Real-Time Clocks DS3234
- Oscillator Design Considerations for Low-Current Applications DS17885
- Selecting a Backup Source for Real-Time Clocks DS3234
- How to Use the DS1678 Real-Time Event Recorder DS1678
- Using the DS32kHz with Maxim Real-Time Clocks DS17885
- Lithium Coin-Cell Batteries: Predicting an Application Lifetime DS9034PCX
- Design Considerations for Maxim Real-Time Clocks DS3234
- Crystal Considerations with Maxim Real-Time Clocks (RTCs) DS3234
- DS1678.pdf DS1678
