Texas Instruments SN74AVC2T45-Q1 Datasheet

DCU PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

V

CCA

A1 A2

GND

V

CCB

B1 B2 DIR

SN74AVC2T45-Q1

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SCES813 –JUNE 2010

DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

Check for Samples: SN74AVC2T45-Q1

1

FEATURES

• Qualified for Automotive Applications

• Control Inputs VIH/VILLevels Are Referenced to V

Voltage – 8000-V Human-Body Model (A114-A)

CCA

• Fully Configurable Dual-Rail Design Allows – 200-V Machine Model (A115-A) Each Port to Operate Over the Full 1.2-V to

3.6-V Power-Supply Range

• I/Os Are 4.6-V Tolerant

• I

Supports Partial-Power-Down Mode

off

Operation

• Max Data Rates – 500 Mbps (1.8-V to 3.3-V Translation) – 320 Mbps (<1.8-V to 3.3-V Translation) – 320 Mbps (Translate to 2.5 V or 1.8 V) – 280 Mbps (Translate to 1.5 V) – 240 Mbps (Translate to 1.2 V)

• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

• ESD Protection Exceeds JESD 22

– 1000-V Charged-Device Model (C101)

DESCRIPTION

This dual-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track V V

CCB

. V

accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional

CCB

translation 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) input activate either the B-port outputs or the A-port outputs. The device transmits data from the A bus to the B bus when the B-port outputs are activated 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 active and must have a logic HIGH or LOW level applied to prevent excess ICCand I

The SN74AVC2T45 is designed so that the DIR input is powered by V This device is fully specified for partial-power-down applications using I

preventing damaging current backflow through the device when it is powered down. The VCCisolation feature ensures that if either VCCinput is at GND, both ports are in the high-impedance state.

T

A

–40°C to 105°C VSSOP – DCU Reel of 3000 CAVC2T45TDCURQ1 SBUI

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

CCA

. V

accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track

CCA

.

CCZ

.

CCA

PACKAGE

ORDERING INFORMATION

(2)

ORDERABLE PART NUMBER TOP-SIDE MARKING

(1)

. The I

off

circuitry disables the outputs,

off

1

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

B1

DIR

5

7

A1

2

V

CCA

V

CCB

B2

6

A2

3

SN74AVC2T45-Q1

SCES813 –JUNE 2010

FUNCTION TABLE

(1)

(EACH TRANSCEIVER)

INPUT

DIR

L B data to A bus H A data to B bus

(1) Input circuits of the data I/Os always are active.

OPERATION

LOGIC DIAGRAM (POSITIVE LOGIC)

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Product Folder Link(s): SN74AVC2T45-Q1

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ABSOLUTE MAXIMUM RATINGS

(1)

SCES813 –JUNE 2010

over operating free-air temperature range (unless otherwise noted)

MIN MAX UNIT

V

CCA

V

CCB

V

I

V

O

V

O

I

IK

I

OK

I

O

q

JA

T

stg

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

(2) The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. (3) The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current ratings are observed. (4) The package thermal impedance is calculated in accordance with JESD 51-7.

Supply voltage range –0.5 4.6 V

I/O ports (A port) –0.5 4.6

Input voltage range

(2)

I/O ports (B port) –0.5 4.6 V Control inputs –0.5 4.6

Voltage range applied to any output in the high-impedance or power-off state

(2)

Voltage range applied to any output in the high or low state

(2) (3)

A port –0.5 4.6 B port –0.5 4.6 A port –0.5 V B port –0.5 V

CCA CCB

+ 0.5

+ 0.5 Input clamp current VI< 0 –50 mA Output clamp current VO< 0 –50 mA Continuous output current ±50 mA Continuous current through V Package thermal impedance

(4)

CCA

, V

, or GND ±100 mA

CCB

DCU package 227 °C/W

Storage temperature range –65 150 °C

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

V

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SN74AVC2T45-Q1

SCES813 –JUNE 2010

RECOMMENDED OPERATING CONDITIONS

V

CCA

V

CCB

V

IH

Supply voltage 1.2 3.6 V Supply voltage 1.2 3.6 V

High-level input voltage

Data inputs

(4)

(1)(2)(3)(4)(5)

V

CCI

1.2 V to 1.95 V V

V

CCO

MIN MAX UNIT

× 0.65

CCI

1.95 V to 2.7 V 1.6 V

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2.7 V to 3.6 V 2

V

IL

Low-level input voltage

Data inputs

(4)

1.95 V to 2.7 V 0.7 V

1.2 V to 1.95 V V

CCI

× 0.35

2.7 V to 3.6 V 0.8

V

IH

High-level DIR input voltage (referenced to V

CCA

(5)

)

1.95 V to 2.7 V 1.6 V

2.7 V to 3.6 V 2

1.2 V to 1.95 V V

V

IL

V

I

V

O

Low-level DIR input voltage (referenced to V

CCA

(5)

)

1.95 V to 2.7 V 0.7 V

2.7 V to 3.6 V 0.8

Input voltage 0 3.6 V

Output voltage V

Active state 0 V 3-state 0 3.6

CCA

× 0.65

CCA

× 0.35

CCO

1.2 V –3

1.4 V to 1.6 V –6

I

OH

High-level output current 1.65 V to 1.95 V –8 mA

2.3 V to 2.7 V –9 3 V to 3.6 V –12

1.2 V 3

1.4 V to 1.6 V 6

I

OL

Low-level output current 1.65 V to 1.95 V 8 mA

2.3 V to 2.7 V 9 3 V to 3.6 V 12

Δt/Δv Input transition rise or fall rate 5 ns/V T

A

(1) V (2) V (3) All unused data inputs of the device must be held at V

(4) For V (5) For V

Operating free-air temperature –40 105 °C

is the VCCassociated with the input port.

CCI

is the VCCassociated with the output port.

CCO

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

values not specified in the data sheet, VIHmin = V

CCI

values not specified in the data sheet, VIHmin = V

CCI

or GND to ensure proper device operation. See the TI application report,

CCI

× 0.7 V, VILmax = V

CCI

× 0.7 V, VILmax = V

CCA

CCI

CCA

× 0.3 V.

Product Folder Link(s): SN74AVC2T45-Q1

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ELECTRICAL CHARACTERISTICS

(1)(2)

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER TEST CONDITIONS V

CCA

V

CCB

IOH= –100 mA 1.2 V to 3.6 V 1.2 V to 3.6 V V IOH= –3 mA 1.2 V 1.2 V 0.95

V

OH

IOH= –6 mA 1.4 V 1.4 V 1.05 IOH= –8 mA 1.65 V 1.65 V 1.2

VI= V

IH

IOH= –9 mA 2.3 V 2.3 V 1.75 IOH= –12 mA 3 V 3 V 2.3 IOL= 100 mA 1.2 V to 3.6 V 1.2 V to 3.6 V 0.2 IOL= 3 mA 1.2 V 1.2 V 0.25

V

OL

IOL= 6 mA 1.4 V 1.4 V 0.35 IOL= 8 mA 1.65 V 1.65 V 0.45

VI= V

IL

IOL= 9 mA 2.3 V 2.3 V 0.55 IOL= 12 mA 3 V 3 V 0.7

I

DIR VI= V

I

A port 0 V 0 to 3.6 V ±0.1 ±1 ±5

I

off

B port 0 to 3.6 V 0 V ±0.1 ±1 ±5 B port 0 V 3.6 V ±0.5 ±2.5 ±5

I

OZ

A port 3.6 V 0 V ±0.5 ±2.5 ±5

VIor VO= 0 to 3.6 V mA

VO= V VI= V

or GND 1.2 V to 3.6 V 1.2 V to 3.6 V ±0.025 ±0.25 ±1 mA

CCA

or GND,

CCO

or GND

CCI

1.2 V to 3.6 V 1.2 V to 3.6 V 10

I

CCA

VI= V

or GND, IO= 0 0 V 3.6 V –2 mA

CCI

3.6 V 0 V 10

1.2 V to 3.6 V 1.2 V to 3.6 V 10

I

CCB

VI= V

or GND, IO= 0 0 V 3.6 V 10 mA

CCI

3.6 V 0 V –2

I

+ I

CCA

CCB

(see Table 1)

Control

C

I

inputs A or B

C

io

port

(1) V

CCO

(2) V

CCI

VI= V

or GND, IO= 0 1.2 V to 3.6 V 1.2 V to 3.6 V 20 mA

CCI

VI= 3.3 V or GND 3.3 V 3.3 V 2.5 pF

VO= 3.3 V or GND 3.3 V 3.3 V 6 pF

is the VCCassociated with the output port.

is the VCCassociated with the input port.

TA= 25°C –40°C to 105°C

MIN TYP MAX MIN MAX

CCO

SCES813 –JUNE 2010

UNIT

– 0.2 V

V

mA

Product Folder Link(s): SN74AVC2T45-Q1

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SCES813 –JUNE 2010

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SWITCHING CHARACTERISTICS

over recommended operating free-air temperature range, V

V

= 1.2 V V

PARAMETER UNIT

t

PLH

t

PHL

t

PLH

t

PHL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

(1)

t

PZH

(1)

t

PZL

(1)

t

PZH

(1)

t

PZL

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

DIR A ns

DIR B ns

DIR A ns

DIR B ns

(1) The enable time is a calculated value, derived using the formula shown in the enable times section.

CCB

TYP TYP TYP TYP TYP

3.1 2.6 2.4 2.2 2.2

3.4 3.1 3 2.9 2.9

5.2 5.2 5.1 5 4.8

5.2 5.2 5.1 5 4.8 5 4 3.8 2.8 3.2 5 4 3.8 2.8 3.2

8.4 7.1 6.8 5.7 6.1

8.3 7.8 7.5 7.2 7

= 1.2 V (see Figure 1)

CCA

= 1.5 V V

CCB

= 1.8 V V

CCB

= 2.5 V V

CCB

= 3.3 V

SWITCHING CHARACTERISTICS

over recommended operating free-air temperature range, V

V

= 1.2 V

PARAMETER UNIT

t

PLH

t

PHL

t

PLH

t

PHL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

(1)

t

PZH

(1)

t

PZL

(1)

t

PZH

(1)

t

PZL

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

DIR A ns

DIR B ns

DIR A ns

DIR B ns

(1) The enable time is a calculated value, derived using the formula shown in the enable times section.

CCB

TYP MIN MAX MIN MAX MIN MAX MIN MAX

2.8 0.7 5.6 0.5 4.8 0.4 3.9 0.3 3.7

2.7 0.8 5.6 0.7 5.4 0.6 5.1 0.5 4.9

3.9 1.3 8.7 1.3 8 1.1 7.9 1.4 7.8

4.7 1.1 7.2 1.4 7.1 1.2 7.1 1.7 7.3

7.4 12.6 12.3 12 12

6.7 14.1 12.6 11.6 11.3

= 1.5 V ± 0.1 V (see Figure 1)

CCA

V

= 1.5 V V

CCB

± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V

= 1.8 V V

CCB

= 2.5 V V

CCB

= 3.3 V

Product Folder Link(s): SN74AVC2T45-Q1

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SCES813 –JUNE 2010

SWITCHING CHARACTERISTICS

over recommended operating free-air temperature range, V

V

= 1.2 V

PARAMETER UNIT

t

PLH

t

PHL

t

PLH

t

PHL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

(1)

t

PZH

(1)

t

PZL

(1)

t

PZH

(1)

t

PZL

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

DIR A ns

DIR B ns

DIR A ns

DIR B ns

(1) The enable time is a calculated value, derived using the formula shown in the enable times section.

CCB

TYP MIN MAX MIN MAX MIN MAX MIN MAX

2.7 0.5 5.4 0.4 4.5 0.2 3.6 0.2 3.3

2.4 0.7 4.9 0.5 4.6 0.5 4.2 0.4 4

3.7 1.3 8.3 0.7 7.1 1.4 5.5 1.1 5.4

4.4 1.3 6 1.3 6.1 0.8 5.9 1.5 6.1

6.8 10.7 10.5 9.9 9.9

6.4 13.5 11.4 8.9 8.5

= 1.8 V ± 0.15 V (see Figure 1)

CCA

V

= 1.5 V V

CCB

± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V

= 1.8 V V

CCB

= 2.5 V V

CCB

= 3.3 V

SWITCHING CHARACTERISTICS

over recommended operating free-air temperature range, V

V

= 1.2 V

PARAMETER UNIT

t

PLH

t

PHL

t

PLH

t

PHL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

(1)

t

PZH

(1)

t

PZL

(1)

t

PZH

(1)

t

PZL

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

DIR A ns

DIR B ns

DIR A ns

DIR B ns

(1) The enable time is a calculated value, derived using the formula shown in the enable times section.

CCB

TYP MIN MAX MIN MAX MIN MAX MIN MAX

2.6 0.4 5.1 0.2 4.2 0.2 3.2 0.2 2.8

2.1 0.6 4 0.5 3.6 0.4 3.2 0.3 3

2.4 0.7 8.1 0.8 6.6 0.8 5.2 0.5 4.5

3.8 1 4.5 0.6 4.5 0.5 4.4 1.1 4.3

5.9 8.7 7.9 7.4 7.1

5.9 8.7 7.9 7.4 7.1 5 13 10.6 8.2 7.1 5 13 10.6 8.2 7.1

= 2.5 V ± 0.2 V (see Figure 1)

CCA

V

= 1.5 V V

CCB

± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V

= 1.8 V V

CCB

= 2.5 V V

CCB

= 3.3 V

Product Folder Link(s): SN74AVC2T45-Q1

Texas Instruments SN74AVC2T45-Q1 Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

FEATURES

DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

SWITCHING CHARACTERISTICS

SWITCHING CHARACTERISTICS

SWITCHING CHARACTERISTICS

SWITCHING CHARACTERISTICS