SN54ACT8990 测试总线控制器

The 'ACT8990 test-bus controllers (TBC) are members of the Texas Instruments SCOPETM testability integrated-circuit family. This family of components supports IEEE Standard 1149.1-1990 (JTAG) boundary scan to facilitate testing of complex circuit-board assemblies. The 'ACT8990 differ from other SCOPETM integrated circuits. Their function is to control the JTAG serial-test bus rather than being target boundary-scannable devices.

The required signals of the JTAG serial-test bus - test clock (TCK), test mode select (TMS), test data input (TDI), and test data output (TDO) can be connected from the TBC to a target device without additional logic. This is done as a chain of IEEE Standard 1149

SN54ACT8990
Voltage Nodes(V) 5  
Vcc range(V) 4.5 to 5.5  
Input Level TTL  
Output Level CMOS  
Rating Military  
Technology Family JTAG  
SN54ACT8990 特性
SN54ACT8990 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
SNJ54ACT8990GB ACTIVE -55 to 125 273.13 | 1ku CPGA (GB) | 68 1 | JEDEC TRAY (5+1)  
SNJ54ACT8990HV ACTIVE -55 to 125 273.13 | 1ku CFP (HV) | 68 1 | TUBE  
SN54ACT8990 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
SNJ54ACT8990GB TBD  POST-PLATE  N/A for Pkg Type SNJ54ACT8990GB SNJ54ACT8990GB
SNJ54ACT8990HV TBD  Call TI  N/A for Pkg Type SNJ54ACT8990HV SNJ54ACT8990HV
SN54ACT8990 应用技术支持与电子电路设计开发资源下载
  1. SN54ACT8990 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器特殊逻辑产品选型与价格 . xls
  3. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  4. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
  5. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
  6. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
  7. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
  8. Designing With Logic (PDF 186 KB)
  9. Live Insertion (PDF 150 KB)
  10. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
  11. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
  12. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  13. LOGIC Pocket Data Book (PDF 6001 KB)
  14. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  15. Logic Cross-Reference (PDF 2938 KB)