DS1500：Y2K兼容、看门狗RTC，带有非易失控制
DS1500为完备的、2000年兼容的、实时时钟/日历(RTC)，具有报警、看门狗定时器、上电复位、电池监控、256字节内置非易失(NV) SRAM、为备份外围SRAM提供NV控制以及一个32.768kHz频率的输出。用户访问DS1500中所有寄存器都通过完整数据资料中的图7所示的字节宽度接口来实现。RTC寄存器采用24小时二进制编码的十进制(BCD)格式，包含世纪、年、月、日、星期、时、分、秒等数据。对于每月天数及闰年的修正均自动完成。
关键特性
| 功能框图 产品应用
|
关键参数
| Part Number | CE Cntrl. | Smart Socket w/Int. Batt. | Li Batt. Monitor | Pwr. Fail Out | RAMs Controlled | VSUPPLY (V) | Package/Pins | Oper. Temp. (°C) | Budgetary Price | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| See Notes | |||||||||||||
| Part Number | Interface | VSUPPLY (V) | CL (pF) | Memory Type | Memory Size (Bytes) | Time of Day Alarms | Package/Pins | Budgetary Price | |||||
| See Notes | |||||||||||||
| DS1500 | Yes | No | Yes | No | 1 |
|
| -40 to +85 | $6.77 @1k | ||||
| DS1500 | Bytewide |
|
| NV SRAM | 256 | 1 |
| $6.77 @1k | |||||
数据手册DataSheet
| 英文 | DS1500.pdf | Rev 3; 12/2011 |
| 勘误表 DS1500 | 1500A2.pdf |
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
- 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)
质量和环境数据
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| DS1500WE | 停止供货 | DS1500WE+ | TSOP,；32引脚；168.1mm² | 0°C至+70°C | RoHS/无铅：否 |
| DS1500WE+ | 生产中 | TSOP,；32引脚；168.1mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| DS1500WEN+ | 生产中 | TSOP,；32引脚；168.1mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1500YE+ | 生产中 | TSOP,；32引脚；168.1mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| DS1500YEN+ | 生产中 | TSOP,；32引脚；168.1mm² | -40°C至+85°C | RoHS/无铅：无铅 |
- DS1500.pdf DS1500
- 1500A2.pdf DS1500
- DS1500.pdf DS1500
- 1500A2.pdf DS1500
- DS1500.pdf DS1500
- 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
- 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
- DS1500.pdf DS1500
