74AHC138;74AHCT138是高速硅栅CMOS器件,与低功耗肖特基TTL (LSTTL)针脚兼容。其规格符合JEDEC标准No. 7A。
74AHC138;74AHCT138是3至8线路解码器/解复用器。其接受三个二进制加权地址输入(A0、A1和A2),处于使能状态时提供在被选中时为低电平的八个互斥输出(Y0至Y7)。
有三个使能输入:两个低电平有效(E1和E2)输入和一个高电平有效(E3)输入。除非E1和E2为低电平且E3为高电平,否则每个输出都将是高电平。
该多路使能功能只需凭借四个74AHC138;74AHCT138器件和一个反相器, 即能将该器件轻松并行扩展为32选1(5线路至32线路)解码器。通过将某个低电平有效使能输入用作数据输入以及将剩下的使能输入用作选通,74AHC138;74AHCT138可以用作一个八输出解复用器。未使用的使能输入必须恒定地连接到其相应的高电平或低电平有效状态。
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3-to-8 line decoder/demultplexer; inverting (REV 4.0) PDF (119.0 kB) 74AHC_AHCT138 [English] | 02 Apr 2014 |
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Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English] | 13 Mar 2013 |
Ground and VCC Bounce of High-Speed Integrated Circuits (REV 1.0) PDF (25.0 kB) AN223 [English] | 13 Mar 2013 |
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English] | 13 Mar 2013 |
Pin FMEA for AHC/AHCT family (REV 1.0) PDF (52.0 kB) AN11106 [English] | 04 Nov 2011 |
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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 |
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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 |
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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 |
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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 |
SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 4.0) PDF (210.0 kB) SOT109-1_118 [English] | 24 Apr 2013 |
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 |
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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 wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
型号 | 状态 |
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74AHC138BQ | Active |
74AHCT138BQ | Active |
74AHC138PW | Active |
74AHCT138D | Active |
74AHCT138PW | Active |
74AHC138D | Active |