74HC(T)238-Q100: 3-to-8 line decoder/demultiplexer

The 74HC_HCT238-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, E2 and E3). Every output is 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 74HC_HCT238-Q100 ICs and one inverter. The 74HC_HCT238-Q100 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 that enable 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.

74HC_T_238_Q100: Product Block Diagram
Outline 3d SOT403-1
Data Sheets (1)
Name/DescriptionModified Date
3-to-8 line decoder/demultiplexer (REV 1.0) PDF (133.0 kB) 74HC_HCT238_Q10019 Feb 2013
Application Notes (2)
Name/DescriptionModified Date
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN25213 Mar 2013
Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN1104416 Mar 2011
Selector Guides (2)
Name/DescriptionModified Date
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_JP19 Nov 2015
Logic selection guide 2016 (REV 1.1) PDF (15.3 MB) 7501728508 Jan 2015
Package Information (3)
Name/DescriptionModified 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) SOT763-130 May 2016
plastic small outline package; 16 leads; body width 3.9 mm (REV 1.0) PDF (192.0 kB) SOT109-108 Feb 2016
plastic thin shrink small outline package; 16 leads; body width 4.4 mm (REV 1.0) PDF (300.0 kB) SOT403-108 Feb 2016
Packing (3)
Name/DescriptionModified 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_11505 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_11824 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_11808 Apr 2013
Supporting Information (3)
Name/DescriptionModified Date
Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE08 Oct 2009
Ordering Information
ProductStatus
74HCT238PW-Q100Active
74HCT238BQ-Q100Active
74HC238PW-Q100Active
74HCT238D-Q100Active
74HC238BQ-Q100Active
74HC238D-Q100Active
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRMSLMSL LF
74HCT238BQ-Q100SOT763-1Reel 7" Q1/T1Active74HCT238BQ-Q100X (9353 003 34115)HCT23874HCT238BQ-Q100Always Pb-free84.911
74HC238PW-Q100SOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74HC238PW-Q100J (9353 000 45118)HC23874HC238PW-Q100Always Pb-free84.911
74HCT238PW-Q100SOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74HCT238PW-Q100J (9353 000 69118)HCT23874HCT238PW-Q100Always Pb-free84.911
74HCT238D-Q100SOT109-1SO-SOJ-REFLOW SO-SOJ-WAVE
SO-SOJ-REFLOW SO-SOJ-WAVE
Reel 13" Q1/T1Active74HCT238D-Q100J (9353 000 68118)74HCT238D74HCT238D-Q100Always Pb-free84.911
74HC238D-Q100SOT109-1SO-SOJ-REFLOW SO-SOJ-WAVE
SO-SOJ-REFLOW SO-SOJ-WAVE
Reel 13" Q1/T1Active74HC238D-Q100J (9353 000 44118)74HC238D74HC238D-Q100Always Pb-free84.911
74HC238BQ-Q100SOT763-1Reel 7" Q1/T1Active74HC238BQ-Q100X (9353 003 33115)HC23874HC238BQ-Q100Always Pb-free84.911