SN54S257 四路 2 线路到 1 线路数据选择器/多路复用器

These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G\) is at a high-logic level.

Series 54LS and 54S are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74LS and 74S are characterized for operation from 0°C to 70°C

	SN54S257
Rating	Military
Technology Family	S

SN54S257 特性

• Three-State Outputs Interface Directly with System Bus
• 'LS257B and 'LS258B Offer Three Times the Sink-Current Capability of the Original 'LS257 and 'LS258
• Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158
• Provides Bus Interface from Multiple Sources in High-Performance Systems

SN54S257 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
SN54S257J	ACTIVE	-55 to 125	15.25 | 1ku	CDIP (J) | 16	1 | TUBE
SNJ54S257J	ACTIVE	-55 to 125	12.46 | 1ku	CDIP (J) | 16	1 | TUBE
SNJ54S257W	ACTIVE	-55 to 125	18.57 | 1ku	CFP (W) | 16	1 | TUBE

SN54S257 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
SN54S257J	TBD	A42	N/A for Pkg Type	SN54S257J	SN54S257J
SNJ54S257J	TBD	A42	N/A for Pkg Type	SNJ54S257J	SNJ54S257J
SNJ54S257W	TBD	A42	N/A for Pkg Type	SNJ54S257W	SNJ54S257W

SN54S257 应用技术支持与电子电路设计开发资源下载

1. SN54S257 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)