SN54LS399 具有存储器的四路 2 输入 多路复用器

This monolithic quadruple two-input multiplexer with storage provides essentially the equivalent functional capabilities of two separate MSI functions (SN54LS157/SN74LS157 and SN54LS175/SN74LS175) in a single 16-pin package.

When the word-select input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to word select will cause the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the positive-going edge of the clock pulse.

Typical power dissipation is 37 milliwatts. The SN54LS399 is characterized for operation over the full military range of -55°C to 125°C. The SN74LS399 is characterized for operation from 0°C to 70°C

	SN54LS399
Rating	Military
Technology Family	S

SN54LS399 特性

• Single-Rail Outputs on 'LS399
• Selects One of Two 4-Bit Data Sources and Stores Data Synchronously with System Clock
• Applications:
  • Dual Source for Operands and Constants in Arithmetic Processor; Can Release Processor Register Files for Acquiring New Data
  • Implement Separate Registers Capable of Parallel Exchange of Contents Yet Retain External Load Capability
  • Universal Type Register for Implementing Various Shift Patterns: Even Has Compound Left-Right Capabilities

SN54LS399 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
SN54LS399J	ACTIVE	-55 to 125	15.25 | 1ku	CDIP (J) | 16	1 | TUBE
SNJ54LS399J	ACTIVE	-55 to 125	12.46 | 1ku	CDIP (J) | 16	1 | TUBE
SNJ54LS399W	ACTIVE	-55 to 125	18.57 | 1ku	CFP (W) | 16	1 | TUBE

SN54LS399 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
SN54LS399J	TBD	A42	N/A for Pkg Type	SN54LS399J	SN54LS399J
SNJ54LS399J	TBD	A42	N/A for Pkg Type	SNJ54LS399J	SNJ54LS399J
SNJ54LS399W	TBD	A42	N/A for Pkg Type	SNJ54LS399W	SNJ54LS399W

SN54LS399 应用技术支持与电子电路设计开发资源下载

1. SN54LS399 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)