74HC540DB: Octal buffer/line driver; 3-state; inverting

The 74HC540; 74HCT540 is an 8-bit inverting buffer/line driver with 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Outline 3d SOT339-1
Data Sheets (1)
Name/DescriptionModified Date
Octal buffer/line driver; 3-state; inverting (REV 4.0) PDF (170.0 kB) 74HC_HCT540 [English]01 Mar 2016
Application Notes (2)
Name/DescriptionModified Date
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]13 Mar 2013
Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English]16 Mar 2011
Users Guides (1)
Name/DescriptionModified Date
HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English]01 Nov 1997
Package Information (1)
Name/DescriptionModified Date
plastic shrink small outline package; 20 leads; body width 5.3 mm (REV 1.0) PDF (325.0 kB) SOT339-1 [English]08 Feb 2016
Packing (1)
Name/DescriptionModified Date
SSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code... (REV 1.0) PDF (204.0 kB) SOT339-1_118 [English]02 Oct 2015
Supporting Information (1)
Name/DescriptionModified Date
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]08 Oct 2009
Ordering Information
ProductStatusFamilyFunctionVCC (V)DescriptionLogic switching levelsPackage versionOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationstpd (ns)Tamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package nameNo of pins
74HC540DBActiveHC(T)Buffers/inverters/drivers2.0 - 6.0octal inverter/line driver (3-state)CMOSSOT339-1+/- 7.8368low9-40~12513640.0SSOP2020
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRIFR(FIT)MTBF(hour)MSLMSL LF
74HC540DBSOT339-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74HC540DB,118 (9351 901 30118)HC54074HC540DBweek 17, 200584.96.621.51E811
Bulk PackActive74HC540DB,112 (9351 901 30112)HC54074HC540DBweek 17, 200584.96.621.51E811
Octal buffer/line driver; 3-state; inverting 74HCT540DB
Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
Pin FMEA 74HC/74HCT family 74HC_T_597_Q100
HC/T User Guide 74HCU04PW
plastic shrink small outline package; 20 leads; body width 5.3 mm 74LVC373A_Q100
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
SSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code... 74LVC373A_Q100
74LVT640