Datasheet Texas Instruments SN74AS257 — 数据表

制造商Texas Instruments
系列SN74AS257
Datasheet Texas Instruments SN74AS257

具有三态输出的四路2线至1线数据选择器/多路复用器

数据表

Quad 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs datasheet
PDF, 1.0 Mb, 修订版: C, 档案已发布: Aug 1, 1996
从文件中提取

价格

状态

SN74AS257DSN74AS257NSN74AS257NSR
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoNoNo

打包

SN74AS257DSN74AS257NSN74AS257NSR
N123
Pin161616
Package TypeDNNS
Industry STD TermSOICPDIPSOP
JEDEC CodeR-PDSO-GR-PDIP-TR-PDSO-G
Package QTY40252000
CarrierTUBETUBELARGE T&R
Device MarkingAS257SN74AS257N74AS257
Width (mm)3.916.355.3
Length (mm)9.919.310.3
Thickness (mm)1.583.91.95
Pitch (mm)1.272.541.27
Max Height (mm)1.755.082
Mechanical Data下载下载下载

参数化

Parameters / ModelsSN74AS257D
SN74AS257D
SN74AS257N
SN74AS257N
SN74AS257NSR
SN74AS257NSR
Bandwidth, MHz125125125
Bits222
Number of Channels444
Configuration2:12:12:1
Digital input leakage(Max), uA555
ESD Charged Device Model, kV0.750.750.75
ESD HBM, kV222
F @ Nom Voltage(Max), Mhz125125125
FunctionEncoder/MultiplexerEncoder/MultiplexerEncoder/Multiplexer
ICC @ Nom Voltage(Max), mA31.931.931.9
Operating Temperature Range, C0 to 700 to 700 to 70
Output Drive (IOL/IOH)(Max), mA48/-1548/-1548/-15
Package GroupSOICPDIPSO
Package Size: mm2:W x L, PKG16SOIC: 59 mm2: 6 x 9.9(SOIC)See datasheet (PDIP)16SO: 80 mm2: 7.8 x 10.2(SO)
RatingCatalogCatalogCatalog
Schmitt TriggerNoNoNo
Technology FamilyASASAS
Type3-State Output3-State Output3-State Output
VCC(Max), V5.55.55.5
VCC(Min), V4.54.54.5
Voltage(Nom), V555
tpd @ Nom Voltage(Max), ns121212

生态计划

SN74AS257DSN74AS257NSN74AS257NSR
RoHSCompliantCompliantCompliant
Pb FreeYes

应用须知

  • Advanced Schottky Load Management
    PDF, 277 Kb, 档案已发布: Feb 1, 1997
    Designers of high-speed systems that include advanced Schottky (AS) devices must consider the operating environment in their work. They must be aware of the individual device characteristics and their interaction with other devices. This document provides a detailed discussion of the waveform characteristics equivalent circuit models transmission line fanout and termination for AS load manageme
  • Advanced Schottky (ALS and AS) Logic Families
    PDF, 1.9 Mb, 档案已发布: Aug 1, 1995
    This document introduces the advanced Schottky family of clamped TTL integrated circuits (ICs). Detailed electrical characteristics of the 'AS and 'ALS devices with table formats are provided. Guidelines for designing high-performance digital systems using the Advanced Schottky family are given along with a brief summary of the solutions to most design decisions needed to implement systems using t

模型线

系列: SN74AS257 (3)

制造商分类

  • Semiconductors> Switches and Multiplexers> Buffered Encoders and Decoders