Analog Devices / Maxim Integrated DS28E80 1-Wire 存储器
美信DS28E80 是一款用户可编程非易失性存储芯片。与浮栅存储单元不同，DS28E80 采用了耐伽马辐射的存储单元技术。它具有 248 字节用户存储容量，分成 8 字节大小的存储块，每个存储块都具有写保护，每个存储块可写 8 次。DS28E80 通过单触点 1-Wire® 总线进行标准速率或高速率通信。每个器件都拥有唯一的 64 位识别码，由工厂写至芯片。通信遵循 1-Wire 协议，在多器件的 1-Wire 网络中，64 位识别码用作节点地址。
特性
- High gamma resistance allows user-programmable manufacturing or calibration data before medical sterilization
- Resistant up to 75kGy (kiloGray) of gamma radiation
- Reprogrammable 248 bytes of user memory
- Compact package and single IO interface reduces board space and enhances reliability
- Unique factory-programmed, 64-bit identification number
- Communicates at 1-wire standard speed (15.3kbps max) and overdrive speed (76kbps max)
- 3.3V ±10%, -40°C to + 85°C reading, 0°C to +50°C writing operating range
- ±8kV HBM ESD protection (typ) for IO pin
- 6-Pin TDFN package
- Advanced 1-wire protocol minimizes interface to just single contact
- Lower block size provides greater flexibility in programming user memory
- Memory is organized as 8-byte blocks
- Each block can be written eight times
- User-programmable write protection for individual memory blocks
应用
- Identification of medical consumables
- Identification and calibration medical tools/accessories
Block Diagram
发布日期: 2015-01-27
| 更新日期: 2023-04-19