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74HC238BQ

3-to-8 line decoder/demultiplexer

The 74HC238; 74HCT238 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '238 ICs and one inverter. The '238 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables 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
74HC238BQ 74HC238BQ,115 935283681115 SOT763-1 订单产品

特性

  • Wide supply voltage range from 2.0 to 6.0 V
  • CMOS low power dissipation
  • High noise immunity
  • Demultiplexing capability
  • Multiple input enable for easy expansion
  • Ideal for memory chip select decoding
  • Active HIGH mutually exclusive outputs
  • Input levels:
    • For 74HC238: CMOS level
    • For 74HCT238: TTL level
  • Complies with JEDEC standards
    • JESD8C (2.7 V to 3.6 V)
    • JESD7A (2.0 V to 6.0 V)
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • 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
74HC238BQProduction2.0 - 6.0CMOS± 5.214low-40~1259414.463DHVQFN16

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
74HC238BQ74HC238BQ,115
( 9352 836 81115 )
ActiveHC238
DHVQFN16
(SOT763-1)
SOT763-1Reel 7” Q1/T1 or Q2/T3

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 / RHFMSLMSL无铅
74HC238BQ74HC238BQ,11574HC238BQ11
品质及可靠性免责声明

文档 (3)

文件名称标题类型日期
74HC_HCT2383-to-8 line decoder/demultiplexerData sheet2021-09-02
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
74HC238BQ_Nexperia_Product_Reliability74HC238BQ Nexperia Product ReliabilityQuality document2022-05-04

支持

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订购、定价与供货

型号Orderable part numberOrdering code (12NC)包装Packing quantity在线购买
74HC238BQ74HC238BQ,115935283681115Reel 7” Q1/T1 or Q2/T3- 订单产品

样品

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