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74HC238-Q100; 74HCT238-Q100

3-to-8 line decoder/demultiplexer

The 74HC238-Q100; 74HCT238-Q100 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

特性

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

  • Demultiplexing capability

  • Multiple input enable for easy expansion

  • Ideal for memory chip select decoding

  • Active HIGH mutually exclusive outputs

  • Multiple package options

  • Complies with JEDEC standard no. 7A

  • Input levels:

    • For 74HC238: CMOS level

    • For 74HCT238: TTL level

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints

参数类型

Type numberProduct 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
74HC238BQ-Q100Production2.0 - 6.0CMOS± 5.214low-40~1259414.463DHVQFN16
74HC238D-Q100Production2.0 - 6.0CMOS± 5.214low-40~1259310.053SO16
74HC238PW-Q100Production2.0 - 6.0CMOS± 5.214low-40~1251264.855.6TSSOP16
74HCT238BQ-Q100Production4.5 - 5.5TTL± 418low-40~1259414.463DHVQFN16
74HCT238D-Q100Production4.5 - 5.5TTL± 418low-40~1259310.053SO16
74HCT238PW-Q100Production4.5 - 5.5TTL± 418low-40~1251264.855.6TSSOP16

封装

型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号,(订购码(12NC))
74HC238BQ-Q100
DHVQFN16
(SOT763-1)
SOT763-1SOT763-1_115ActiveHC23874HC238BQ-Q100X
( 9353 003 33115 )
74HC238D-Q100
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HC238D74HC238D-Q100J
( 9353 000 44118 )
74HC238PW-Q100
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC23874HC238PW-Q100J
( 9353 000 45118 )
74HCT238BQ-Q100
DHVQFN16
(SOT763-1)
SOT763-1SOT763-1_115ActiveHCT23874HCT238BQ-Q100X
( 9353 003 34115 )
74HCT238D-Q100
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HCT238D74HCT238D-Q100J
( 9353 000 68118 )
74HCT238PW-Q100
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHCT23874HCT238PW-Q100J
( 9353 000 69118 )

环境信息

型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
74HC238BQ-Q10074HC238BQ-Q100X74HC238BQ-Q100Always Pb-free
74HC238D-Q10074HC238D-Q100J74HC238D-Q100Always Pb-free
74HC238PW-Q10074HC238PW-Q100J74HC238PW-Q100Always Pb-free
74HCT238BQ-Q10074HCT238BQ-Q100X74HCT238BQ-Q100Always Pb-free
74HCT238D-Q10074HCT238D-Q100J74HCT238D-Q100Always Pb-free
74HCT238PW-Q10074HCT238PW-Q100J74HCT238PW-Q100Always Pb-free
品质及可靠性免责声明

文档 (10)

文件名称标题类型日期
74HC_HCT238_Q1003-to-8 line decoder/demultiplexerData sheet2024-03-21
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyPackage information2023-05-11
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

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