74LVC4245ABQ: Octal dual supply translating transceiver; 3-state

The 74LVC4245A is an octal dual supply translating transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. It is designed to interface between a 3 V and 5 V bus in a mixed 3 V and 5 V supply environment.

The device features an output enable input (pin OE) for easy cascading and a send/receive input (pin DIR) for direction control. Pin OE controls the outputs so that the buses are effectively isolated.

In suspend mode, when VCC(A) is zero, there will be no current flow from one supply to the other supply. The A-outputs must be set 3-state and the voltage on the A-bus must be smaller than Vdiode (typical 0.7 V).

VCC(A) ≥ VCC(B), except in suspend mode.

74LVC4245ABQ: Product Block Diagram
Outline 3d SOT815-1
Data Sheets (1)
Name/DescriptionModified Date
Octal dual supply translating transceiver; 3-state (REV 10.0) PDF (323.0 kB) 74LVC4245A [English]18 Dec 2012
Application Notes (5)
Name/DescriptionModified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]13 Mar 2013
Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English]13 Mar 2013
Pin FMEA for LVC family (REV 1.0) PDF (44.0 kB) AN11009 [English]04 Feb 2011
Power considerations when using CMOS and BiCMOS logic devices (REV 1.0) PDF (100.0 kB) AN263 [English]05 Feb 2002
Interfacing 3 Volt and 5 Volt Applications (REV 1.0) PDF (63.0 kB) AN240 [English]15 Sep 1995
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_JP [English]19 Nov 2015
Logic selection guide 2016 (REV 1.1) PDF (15.3 MB) 75017285 [English]08 Jan 2015
Package Information (1)
Name/DescriptionModified Date
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 24 terminals; body 3.5 x 5.5 x... (REV 1.0) PDF (195.0 kB) SOT815-1 [English]08 Feb 2016
Packing (1)
Name/DescriptionModified Date
DHVQFN24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 4.0) PDF (205.0 kB) SOT815-1_118 [English]19 Apr 2013
IBIS Model
SPICE model
Ordering Information
ProductStatusFamilyVCC(A) (V)FunctionDescriptionVCC(B) (V)Logic switching levelsPackage versionOutput drive capability (mA)tpd (ns)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package nameNo of pins
74LVC4245ABQActiveLVC1.2 - 5.5Level shifters/translators8-bit dual-supply voltage translating transceiver (3-state)1.2 - 5.5CMOS/LVTTLSOT815-1+/- 243.58low-40~125738.046DHVQFN2424
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRIFR(FIT)MTBF(hour)MSLMSL LF
74LVC4245ABQSOT815-1Reel 13" Q1/T1Active74LVC4245ABQ,118 (9352 856 19118)LVC4245A74LVC4245ABQAlways Pb-free123.83.872.58E811