SN74LV8154 具有三态输出寄存器的双路 16 位二进制计数器

The SN74LV8154 is a dual 16-bit binary counter with 3-state output registers, designed for 2-V to 5.5-V VCC operation.

This 16-bit counter (A or B) feeds a 16-bit storage register, and each storage register is further divided into an upper byte and lower byte. The GAL\, GAU\, GBL\, GBU\ inputs are used to select the byte that needs to be output at Y0-Y7. CLKA is the clock for A counter, and CLKB is the clock for B counter. RCLK is the clock for the A and B storage registers. All three clock signals are positive-edge triggered.

A 32-bit counter can be realized by connecting CLKA and CLKB together and by connecting RCOA\ to CLKBEN\.

To ensure the high-impedance state during power up or power down, GAL\, GAU\, GBL\, and GBU\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver

SN74LV8154
Rating Catalog  
Technology Family LV-A 
SN74LV8154 特性
SN74LV8154 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
SN74LV8154N ACTIVE 0 to 70 0.35 | 1ku PDIP (N) | 20 25 | TUBE  
SN74LV8154NE4 ACTIVE 0 to 70 0.35 | 1ku PDIP (N) | 20 25 | TUBE  
SN74LV8154 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
SN74LV8154N Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LV8154N SN74LV8154N
SN74LV8154NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74LV8154NE4 SN74LV8154NE4
SN74LV8154 应用技术支持与电子电路设计开发资源下载
  1. SN74LV8154 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)