74LVC257A: 四路2输入多路复用器,带5 V容压输入/输出;3态

74LVC257A是带3态输出的四路2输入多路复用器,其从两个来源选择4位数据且受一般数据选择输入(针脚S)控制。针脚S为低电平时选中的是数据源0(针脚1I0至4I0)的数据输入,针脚S为高电平时选中的是数据源1(针脚1I1至4I1)的数据输入。来自所选输入的数据以真正(非反相)形式出现在输出(针脚1Y至4Y)处。该器件是4极2位置开关的逻辑实施,其中开关位置由施加到针脚S的逻辑电平确定。针脚OE为高电平时,输出被强制为高阻抗关断状态。

输入可通过3.3 V或5.0 V器件进行驱动。禁用时,可以向输出施加高达5.5 V的电压。这些特性允许将这些器件用作混合3.3 V和5 V应用中的转换器。

74LVC257A: 产品结构框图
sot109-1_3d
数据手册 (1)
名称/描述Modified Date
Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state (REV 6.0) PDF (186.0 kB) 74LVC257A [English]28 Nov 2011
应用说明 (5)
名称/描述Modified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]13 Mar 2013
Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English]13 Mar 2013
Pin FMEA for LVC family (REV 1.0) PDF (44.0 kB) AN11009 [English]04 Feb 2011
Power considerations when using CMOS and BiCMOS logic devices (REV 1.0) PDF (100.0 kB) AN263 [English]05 Feb 2002
Interfacing 3 Volt and 5 Volt Applications (REV 1.0) PDF (63.0 kB) AN240 [English]15 Sep 1995
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 (3)
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
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
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
SPICE
订购信息
型号状态
74LVC257ADActive
74LVC257ADBActive
74LVC257ABQActive
74LVC257APWActive
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
74LVC257APWSOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74LVC257APW,118 (9352 606 80118)LVC257A74LVC257APWweek 10, 2005123.83.872.58E811
Bulk PackActive74LVC257APW,112 (9352 606 80112)LVC257A74LVC257APWweek 10, 2005123.83.872.58E811
74LVC257ABQSOT763-1Reel 7" Q1/T1Active74LVC257ABQ,115 (9352 751 74115)VC257A74LVC257ABQAlways Pb-free123.83.872.58E811
74LVC257ADSOT109-1SO-SOJ-REFLOW SO-SOJ-WAVE
SO-SOJ-REFLOW SO-SOJ-WAVE
Reel 13" Q1/T1Active74LVC257AD,118 (9352 606 78118)74LVC257AD74LVC257ADweek 35, 2004123.83.872.58E811
Bulk PackActive74LVC257AD,112 (9352 606 78112)74LVC257AD74LVC257ADweek 35, 2004123.83.872.58E811
74LVC257ADBSOT338-1SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1Active74LVC257ADB,118 (9352 606 79118)VC257A74LVC257ADBweek 12, 2005123.83.872.58E811
Bulk PackActive74LVC257ADB,112 (9352 606 79112)VC257A74LVC257ADBweek 12, 2005123.83.872.58E811
Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state 74LVC257APW
Sorting through the low voltage logic maze 74LVC_H_245A_Q100
Package lead inductance considerations in high-speed applications 74LVC_H_245A_Q100
Pin FMEA for LVC family 74LVC1G123_Q100
Power considerations when using CMOS and BiCMOS logic devices 74AHCT244PW
Interfacing 3 Volt and 5 Volt Applications 74LVC377PW
lvc257a IBIS model 74LVC257APW
lvc Spice model 74LVC3G17GT
SOT403-1 LPC812M101JDH16
Reel 13" Q1/T1 LPC812M101JDH16
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
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
SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... NPIC6C596A_Q100
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
74LVC257A
PCA9633
TFF1024HN
SA614A
HEF4094B