Texas Instruments SN74AVC2T45DCTT Manual

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Side 1/32

DIR 5

A1 2

VCCA VCCB

A2 3

VCCA VCCB

GND4

VCCA VCCB

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Design

An IMPORTANT NOTICE at the end o f this data sheet addresses avail ability, warr anty, changes, use in safet y-critic al applications,

inte llectual property matters and other important disclaimers. P RODUCTI ON DATA.

SN74AVC2T45

SCES531L –DECEMBER 2003 – REVISED MAY 2017

SN74AVC2T45 2-Bit, Dual Sup ply, Bus Transceiver

With Congurable Level-S hifting and T ran slation

1 Features

1 • Available in the Texas Instruments NanoFree™

Package

• VCC Isolation Feature: If Either VCC Input Is at

GND, Both Ports Are in the High-Impedance State

• Dual Supply Rail Design

• I/Os Are 4.6-V Over Voltage Tolerant

• Io Supports Partial-Power-Down Mode Operation

• Max Data Rates

– 500 Mbps (1.8 V to 3.3 V)

– 320 Mbps (<1.8 V to 3.3 V )

– 320 Mbps (Level-Shifting to 2.5 V or 1.8 V)

– 280 Mbps (Level-Shifting to 1.5 V)

– 240 Mbps (Level-Shifting to 1.2 V)

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• ESD Protection Exceeds JESD 22

2 Applications

• Smartphones

• Servers

• Desktop PCs and Notebooks

• Other Portable Devices

3 Description

This 2-bit non-inverting bus transceiver uses two

separate congurable power-supply rails. The A ports

are designed to t rack VCCA and accepts any supply

voltage from 1.2 V to 3.6 V. The B ports are designed

to track VCCB and accepts any supply voltage from

1.2 V to 3.6 V. This allows for universal low-voltage

bidirectional translation and level-shifting between

any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V

voltage nodes.

The SN74AVC2T45 is designed for asynchronous

communication between two data buses. The logic

levels of the direction-control (DIR pin) i nput activate

either the B-port outputs or the A-port outputs. The

device transmits data f rom the A bus to the B bus

when the B-port outputs are acti vated and from the B

bus to the A bus when the A-port outputs are

activated. The input circuitry on both A and B ports

always is activ e and must have a logic HIGH or LOW

level applied to prevent excess leakage current on

the internal CMOS str ucture.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

SN74AVC2T45DCT SM8 (8) 2.95 mm × 2.80 mm

SN74AVC2T45DCU VSSOP (8) 2.30 mm × 2.00 mm

SN74AVC2T45YZP DSBGA ( 8) 1.89 mm × 0.89 mm

(1) For all avail able packages, see th e orderabl e adde ndum at

the end of the data shee t.

Logic Diagram (Positive Logic)

(1) Pin numbers are f or the DCT and DCU package s only.

Produkt Specifikationer

Mærke:	Texas Instruments
Kategori:	Ikke kategoriseret
Model:	SN74AVC2T45DCTT
Type:	Logisk kredsløb
Bredde:	3.15 mm
Dybde:	2.9 mm
Højde:	1.2 mm
Antal pr. pakke:	250 stk
Pakkedybde:	182 mm
Pakkebredde:	182 mm
Pakkehøjde:	20 mm
Opbevaringstemperatur (T-T):	-65 - 150 °C
Driftstemperatur (T-T):	-40 - 85 °C
Pakketype:	SOP
Antal stifter:	8
Bredde (med stifter):	3.15 mm
Højde (med stifter):	1.3 mm
Dybde (med stifter):	4.25 mm