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74HC251D

8-input multiplexer; 3-state

The 74HC251; 74HCT251 is an 8-bit multiplexer with eight binary inputs (I0 to I7), three select inputs (S0 to S2) and an output enable input (OE). The select inputs select one of the eight binary inputs and route it to the complementary outputs (Y and Y). A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

可订购部件

型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
74HC251D 74HC251D,653 933713520653 SOT109-1 订单产品
74HC251D 74HC251D,652 933713520652 SOT109-1 订单产品

特性

  • Wide supply voltage range from 2.0 V to 6.0 V
  • CMOS low power dissipation
  • High noise immunity
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • Complies with JEDEC standards:
    • JESD8C (2.7 V to 3.6 V)
    • JESD7A (2.0 V to 6.0 V)
  • Input levels:
    • For 74HC251: CMOS level
    • For 74HCT251: TTL level
  • Non-inverting data path
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

目标应用

参数类型

型号Product statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC251DProduction2.0 - 6.0CMOS± 5.218low-40~125804.138SO16

Package

型号可订购的器件编号,(订购码(12NC))状态标示封装尺寸版本回流焊/波峰焊包装
74HC251D74HC251D,653
( 9337 135 20653 )
Active74HC251D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECC
74HC251D,652
( 9337 135 20652 )
Active74HC251DBulk Pack, CECC

品质、可靠性及化学成分

型号可订购的器件编号化学成分RoHS / RHFEFRIFRMTBF(小时)MSLMSL无铅
74HC251D74HC251D,65374HC251D84.96.621.51E811
74HC251D74HC251D,65274HC251D84.96.621.51E811
品质及可靠性免责声明

文档 (5)

文件名称标题类型日期
74HC_HCT2518-input multiplexer; 3-stateData sheet2021-02-08
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08

支持

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订购、定价与供货

型号Orderable part numberOrdering code (12NC)包装在线购买
74HC251D74HC251D,653933713520653Reel 13" Q1/T1 CECC订单产品
74HC251D74HC251D,652933713520652Bulk Pack, CECC订单产品

样品

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