SN54LS697 具有输出寄存器和多路复用三态输出的同步加/减计数器

These low-power Schottky LSI devices incorporate synchronous up/down counters, four-bit D-type registers, and quadruple two-line to one-line multiplexers with three state outputs in a single 20-pin package. The up/down counters are programmable from the data inputs and feature enable P\ and enable T\ and a ripple-carry output for easy expansion. The register/counter select input R/C\, selects the counter when low and the register when high for the three-state outputs, QA, QB, QC, and QD. These outputs are rated at 12 and 24 milliamperes (54LS/74LS) for good bus driving performance.

Both the counter CCK and register clock RCK are positive-edge triggered. The counter clear CCLR\ is active low and is asynchronous on the 'LS696 and 'LS697, synchronous on the 'LS699

SN54LS697
Rating Military  
Technology Family LS  
SN54LS697 特性
SN54LS697 芯片订购指南
器件 状态 温度 价格 封装 | 引脚 封装数量 | 封装载体 丝印标记
SN54LS697J ACTIVE -55 to 125 1.91 | 1ku CDIP (J) | 20 1 | TUBE  
SNJ54LS697FK ACTIVE -55 to 125 17.37 | 1ku LCCC (FK) | 20 1 | TUBE  
SNJ54LS697J ACTIVE -55 to 125 3.46 | 1ku CDIP (J) | 20 1 | TUBE  
SNJ54LS697W ACTIVE -55 to 125 15.12 | 1ku CFP (W) | 20 1 | TUBE  
SN54LS697 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
SN54LS697J TBD  A42   N/A for Pkg Type SN54LS697J SN54LS697J
SNJ54LS697FK TBD  POST-PLATE  N/A for Pkg Type SNJ54LS697FK SNJ54LS697FK
SNJ54LS697J TBD  A42   N/A for Pkg Type SNJ54LS697J SNJ54LS697J
SNJ54LS697W TBD  A42   N/A for Pkg Type SNJ54LS697W SNJ54LS697W
SN54LS697 应用技术支持与电子电路设计开发资源下载
  1. SN54LS697 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器MSI 功能产品选型与价格 . xls
  3. Logic Guide 2009 (PDF 4263 KB)
  4. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  5. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
  6. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
  7. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
  8. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
  9. Designing With Logic (PDF 186 KB)
  10. Live Insertion (PDF 150 KB)
  11. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
  12. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
  13. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  14. LOGIC Pocket Data Book (PDF 6001 KB)
  15. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  16. Logic Cross-Reference (PDF 2938 KB)