74HC(T)157: 四路2输入多路复用器

74HC157;74HCT157是高速硅栅CMOS器件,与低功耗肖特基TTL针脚兼容。其规格符合JEDEC标准no. 7A。

74HC/HCT157是四路2输入多路复用器,其在一般数据选择输入的控制下从两个数据源选择4位数据。使能输入(E)为低电平有效。E为高电平时,无论所有其他输入条件如何,所有输出(1Y至4Y)都被强制为低电平。

将数据从两组寄存器移动到四个通用输出总线是74HC/HCT157的常见用途。一般数据选择输入(S)的状态可确定数据来自哪个特定的寄存器。其还可以用作函数生成器。该器件在实施极不规则的逻辑时非常有用,方法是生成两个变量(其中一个变量为通用变量)的16个不同函数中的任意四个,74HC/HCT157是4极2位置开关的逻辑实施,其中开关位置由施加到S的逻辑电平确定。

逻辑方程式为:

1Y = E × (1I1 × S + 1I0 × S)

2Y = E × (2I1 × S + 2I0 × S)

3Y = E × (3I1 × S + 3I0 × S)

4Y = E × (4I1 × S + 4I0 × S)

74HC/HCT157等同于74HC158,但具有非反相(真正)输出。

74HC_T_157: 产品结构框图
sot109-1_3d
数据手册 (1)
名称/描述Modified Date
Quad 2-input multiplexer (REV 8.0) PDF (195.0 kB) 74HC_HCT157 [English]28 Dec 2015
应用说明 (2)
名称/描述Modified Date
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]13 Mar 2013
Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English]16 Mar 2011
用户指南 (1)
名称/描述Modified Date
HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English]01 Nov 1997
选型工具指南 (2)
名称/描述Modified Date
ロジック製品セレクションガイド... (REV 1.0) PDF (38.3 MB) LOGIC_SELECTION_GUIDE_2015_JP [English]19 Nov 2015
Logic selection guide 2016 (REV 1.1) PDF (15.3 MB) 75017285 [English]08 Jan 2015
封装信息 (4)
名称/描述Modified Date
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x... (REV 1.1) PDF (191.0 kB) SOT763-1 [English]30 May 2016
plastic small outline package; 16 leads; body width 3.9 mm (REV 1.0) PDF (192.0 kB) SOT109-1 [English]08 Feb 2016
plastic shrink small outline package; 16 leads; body width 5.3 mm (REV 1.0) PDF (306.0 kB) SOT338-1 [English]08 Feb 2016
plastic thin shrink small outline package; 16 leads; body width 4.4 mm (REV 1.0) PDF (300.0 kB) SOT403-1 [English]08 Feb 2016
包装 (2)
名称/描述Modified Date
DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or... (REV 2.0) PDF (191.0 kB) SOT763-1_115 [English]05 Jul 2016
TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (218.0 kB) SOT403-1_118 [English]08 Apr 2013
支持信息 (4)
名称/描述Modified Date
Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW [English]08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English]08 Oct 2009
Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English]08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]08 Oct 2009
IBIS
订购信息
型号状态
74HC157DActive
74HCT157PWActive
74HCT157BQActive
74HCT157DActive
74HC157DBActive
74HC157BQActive
74HC157PWActive
74HCT157DBActive
封装环保信息
产品编号封装说明Outline Version回流/波峰焊接包装产品状态部件编号订购码 (12NC)Marking化学成分RoHS / 无铅 / RHF无铅转换日期EFRIFR(FIT)MTBF(小时)MSLMSL LF
74HCT157BQSOT763-1Reel 7" Q1/T1Active74HCT157BQ,115 (9352 944 24115)HCT15774HCT157BQAlways Pb-free84.96.621.51E811
74HCT157PWSOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74HCT157PW,118 (9351 885 40118)HCT15774HCT157PWweek 10, 200584.96.621.51E811
Bulk PackActive74HCT157PW,112 (9351 885 40112)HCT15774HCT157PWweek 10, 200584.96.621.51E811
74HCT157DBSOT338-1SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1Active74HCT157DB,118 (9351 885 60118)HCT15774HCT157DBweek 12, 200584.96.621.51E811
Bulk PackActive74HCT157DB,112 (9351 885 60112)HCT15774HCT157DBweek 12, 200584.96.621.51E811
74HCT157DSOT109-1SO-SOJ-REFLOW SO-SOJ-WAVE
SO-SOJ-REFLOW SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActive74HCT157D,653 (9337 137 50653)74HCT157D74HCT157Dweek 12, 200584.96.621.51E811
Bulk Pack, CECCActive74HCT157D,652 (9337 137 50652)74HCT157D74HCT157Dweek 12, 200584.96.621.51E811
74HC157BQSOT763-1Reel 7" Q1/T1Active74HC157BQ,115 (9352 944 23115)HC15774HC157BQAlways Pb-free84.96.621.51E811
74HC157PWSOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74HC157PW,118 (9351 868 80118)HC15774HC157PWweek 10, 200584.96.621.51E811
Bulk PackActive74HC157PW,112 (9351 868 80112)HC15774HC157PWweek 10, 200584.96.621.51E811
74HC157DBSOT338-1SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1Active74HC157DB,118 (9351 868 70118)HC15774HC157DBweek 12, 200584.96.621.51E811
Bulk PackActive74HC157DB,112 (9351 868 70112)HC15774HC157DBweek 12, 200584.96.621.51E811
74HC157DSOT109-1SO-SOJ-REFLOW SO-SOJ-WAVE
SO-SOJ-REFLOW SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActive74HC157D,653 (9337 137 40653)74HC157D74HC157Dweek 35, 200484.96.621.51E811
Bulk Pack, CECCActive74HC157D,652 (9337 137 40652)74HC157D74HC157Dweek 35, 200484.96.621.51E811
Quad 2-input multiplexer 74HCT157PW
Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
Pin FMEA 74HC/74HCT family 74HC_T_597_Q100
HC/T User Guide 74HCU04PW
ロジック製品セレクションガイド... 74LVC_H_245A_Q100
Logic selection guide 2016 74LVC_H_245A_Q100
74HC157 IBIS model 74HC157PW
74HCT157 IBIS model 74HCT157PW
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x... NPIC6C596A_Q100
DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or... NPIC6C596A_Q100
SOT403-1 LPC812M101JDH16
Reel 13" Q1/T1 LPC812M101JDH16
plastic shrink small outline package; 16 leads; body width 5.3 mm 74HC_T_595_Q100
Footprint for reflow soldering 74HC_T_595_Q100
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
plastic small outline package; 16 leads; body width 3.9 mm NPIC6C596A_Q100
Footprint for reflow soldering NPIC6C596A_Q100
Footprint for wave soldering NPIC6C596A_Q100
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