JTAG连接器,Joint Test Action Group

Joint Test Action Group(也称为JTAG)是IEEE标准1149.1的常用名。此标准为测试板级互连连接器定义了一种特殊方法,这种方法也称为边界扫描。简言之,JTAG的建立初衷是测试常见问题,但后来已经成为一种配置设备的方式。JTAG硬件可以解读五个不同信号的信息:TDI(测试数据输入)、TDO(测试数据输出)、TMS(测试模式选择)、TCK(测试时钟)和TRST(测试报告 - 可选)。

边界扫描技术的主要优势是,能够独立于应用逻辑观察设备输入中的数据和控制输出中的数据。简单的测试即可找到各种制造缺陷,例如端子未连接、设备缺失、电路板上的设备不正确或旋转,甚至是设备出现故障或损坏。

JTAG标识,Joint Test Action Group标识

Samtec提供JTAG连接器和电缆解决方案。

标准连接器

不含端子7的标准连接器

建议的电缆对接

JTAG连接器图片

兼容系列

  • EJH - .100"带护罩IDC狗牛角连接器
  • FTSH - .050"微型针脚料带
  • HHSC - .100" JTAG带状同轴电缆组件
  • HMTSW - .100"高温接线柱高度可变针脚料带
  • HTSS - .100"高温带护罩针脚料带
  • HTST - .100"高温带护罩针脚料带,与电缆对接
  • IDSD - .100"细长型双排IDC带状电缆组件,插座
  • IDSS - .100"细长型单排IDC带状电缆组件,插座
  • MTLW - .100"轻薄型可变接线柱高度针脚料带
  • MTSW - .100"可变接线柱高度针脚料带
  • TLW - .100"轻薄型针脚料带
  • TSM - .100"表面安装端子料带
  • TSSH - .100" 终端带护罩针脚料带
  • TST - .100"带护罩针脚料带,与电缆对接
  • TSW - .100"针脚料带
  • ZSS - .100"带护罩加高针脚料带
  • ZST - .100"带护罩加高针脚料带,与电缆对接

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