74AVC20T245BX: 20-bit dual supply translating transceiver

The 74AVC20T245 is a 20-bit, dual supply transceiver that enables bi-directional voltage level translation. The device can be used as two 10-bit transceivers or as a single 20-bit transceiver. It features four 10-bit input-output ports (1An, 1Bn and 2An, 2Bn), two output enable inputs (nOE), two direction inputs (nDIR) and dual supplies (VCC(A) and VCC(B)). VCC(A) and VCC(B) can be independently supplied at any voltage between 0.8 V and 3.6 V making the device suitable for bi-directional voltage level translation between any of the low voltage nodes: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V. The 1An and 2An ports, nOE and nDIR are referenced to VCC(A), the 1Bn and 2Bn ports are referenced to VCC(B). A HIGH on a 1DIR allows transmission from 1An to 1Bn and a LOW on 1DIR allows transmission from 1Bn to 1An. A HIGH on nOE causes the outputs to assume a HIGH impedance OFF-state.

The device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at GND level, all output ports will assume a high impedance OFF-state.

sot1134-2_3d
Data Sheets (1)
Name/DescriptionModified Date
20-bit dual supply translating transceiver with configurable voltage translation; 3-state (REV 7.0) PDF (258.0 kB) 74AVC20T245 [English]08 Mar 2012
Application Notes (2)
Name/DescriptionModified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]13 Mar 2013
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]13 Mar 2013
Brochures (2)
Name/DescriptionModified Date
電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP [English]16 Feb 2015
Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511 [English]20 May 2014
Selector Guides (2)
Name/DescriptionModified Date
Application guide: Flat-panel TV sets (REV 2.1) PDF (3.2 MB) 75017085 [English]13 Mar 2012
Application guide; Portable devices and mobile handsets (REV 2.0) PDF (15.4 MB) 75017090 [English]13 Mar 2012
Package Information (1)
Name/DescriptionModified Date
plastic compatible thermal enhanced extremely thin quad flat package; no leads (REV 1.1) PDF (217.0 kB) SOT1134-2 [English]10 Jun 2016
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
74AVC20T245BXActiveAVC(M)0.8 - 3.6Level shifters/translators20-bit dual-supply voltage level translating transceiver (3-state)0.8 - 3.6CMOS/LVTTLSOT1134-2+/- 123.520very low-40~125HXQFN60U60
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateMSLMSL LF
74AVC20T245BXSOT1134-2Reel 13" Q1/T1 in DrypackActive74AVC20T245BX,518 (9352 958 67518)AVC20T24574AVC20T245BXAlways Pb-free22
20-bit dual supply translating transceiver with configurable voltage translation; 3-state 74AVC20T245DGG
Sorting through the low voltage logic maze 74LVC_H_245A_Q100
Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
電圧レベルシフタ 74AVC16245DGG-Q100
Voltage translation: How to manage mixed-voltage designs with NXP® level translators 74AVC16245DGG-Q100
Application guide: Flat-panel TV sets mmbz33vcl
Application guide; Portable devices and mobile handsets pesd24vs1ul
SOT1134-2 74LVC16374ABX
74LVTN16245B