Microchip Technology MCS3142 双 KeeLoq 编码器
Microchip Technology MCS3142 双 KeeLoq® 编码器为安全遥控无钥匙进入 (RKE) 和安全的远程控制系统提供了完整的解决方案。 MCS3142 编码器采用 Microchip Technology 的 Ultimate KeeLoq 协议，是一套全新的基于定时器的解决方案，为诸如 AES-128 分组密码、可编程 32 位序列号、可编程 128 位加密密钥以及 KeeLoq 安全学习模式（128 位种子）等经典 KeeLoq 协议结构提供了增强功能。 Ultimate KeeLoq 技术集成了由定时器驱动的消息计数器，该计数器可独立于事件连续递增，从而提供更好更安全的解决方案。 计时功能提供了可抵御捕捉和重放攻击技术的额外保护。 借助 Ultimate KeeLoq 协议，设计人员可以开发高度安全的认证应用，以用于各种市场，如安防系统（键盘、远程传感器和访问控制）、遥控无钥匙进入（汽车）和认证（身份识别和所有权）应用。
The Microchip Technology MCS3142 Dual KeeLoq Encoder is available in a compact TSSOP-20 package with a -40°C to +85°C operating temeprature range.
特性
- Ultimate KeeLoq Technology
- Programmable 32-bit serial number
- AES-128 block cipher
- Programmable 128-bit crypt key
- Timekeeping based on external 32.768kHz crystal
- 192-bit transmission code length:
- 32-bit unencrypted portion
- 128-bit encrypted, hopping code portion
- 32-bit authorization check
- Classic KeeLoq Technology
- Programmable 28-bit serial number
- Data based on Classic KeeLoq Technology:
- KeeLoq technology 32-bit block cipher
- Programmable 64-bit crypt key
- KeeLoq technology secure learn
- Programmable 60-bit seed value
- 66-bit transmission code length:
- 34-bit unencrypted portion
- 32-bit encrypted, hopping code portion
- RF Transmitter Features
- Fully integrated transmitter
- 310MHz to 928MHz
- Configurable bit rate
- Configurable modulation, supporting OOK and FSK
- Configurable data modulation, supporting PWM and Manchester
- Operating Features
- 1.8V to 3.6V operating voltage
- -40°C to 85°C industrial operating temperature range
- 20-pin TSSOP package
- Four switch inputs with internal pull-up resistors
- 15 functions available
- Configurable button modes
- One active-low LED drive
- Configurable minimum code word completion
应用
- Automotive RKE Systems
- Automotive Alarm Systems
- Gate and Garage Door Openers
- Home Security Systems
- Security and Safety Sensors
- Remote Control
- Remote Keypad
- Wireless Sensors
Typical Application Circuit
发布日期: 2017-02-03
| 更新日期: 2022-03-11