TEXAS INSTRUMENTS SN74AVC8T245 Technical data

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DGV OR PW PACKAGE

(TOP VIEW)

1 2 3 4 5 6 7 8 9 10 11 12

24 23 22 21 20 19 18 17 16 15 14 13

V

CCA

DIR

A1 A2 A3 A4 A5 A6 A7

A8 GND GND

V

CCB

V

CCB

OE B1 B2 B3 B4 B5 B6 B7 B8 GND

RHL PACKAGE

(TOP VIEW)

1 24

12 13

2 3 4 5 6 7 8 9 10 11

23 22 21 20 19 18 17 16 15 14

V

CCB

OE B1 B2 B3 B4 B5 B6 B7 B8

DIR

A1 A2 A3 A4 A5 A6 A7 A8

GND

V

GND

CCB

V

CCA

SN74AVC8T245

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

FEATURES

• Control Inputs V

• V

to V

CC

Voltage

CCA

Isolation Feature – If Either V

/V

Levels Are Referenced • Max Data Rates

IH

IL

GND, All I/O Ports Are in the High-Impedance State

• I

Supports Partial Power-Down-Mode

off

Operation

• Fully Configurable Dual-Rail Design Allows

Each Port to Operate Over the Full 1.4-V to

3.6-V Power-Supply Range

• I/Os Are 4.6-V Tolerant

CC

Input Is at

– 170 Mbps (V – 320 Mbps (V

< 1.8 V or V

CCA

≥ 1.8 V and V

CCA

CCB

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• ESD Protection Exceeds JESD 22

– 8000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101)

< 1.8 V)

≥ 1.8 V)

DESCRIPTION/ORDERING INFORMATION

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC8T245 is optimized to operate with V A port is designed to track V

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bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

track V

. V

CCB

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

CCB

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–40 ° C to 85 ° C TSSOP – PW WE245

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

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.

T

A

QFN – RHL Reel of 1000 SN74AVC8T245RHLR WE245

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website at www.ti.com .

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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.

TVSOP – DGV Reel of 2000 SN74AVC8T245DGVR WE245

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CCA

/V

set at 1.4 V to 3.6 V. It is operational with V

CCB

. V

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

CCA

/V

CCA

as low as 1.2 V. The

CCB

ORDERING INFORMATION

PACKAGE

(1)

Tube of 60 SN74AVC8T245PW Reel of 2000 SN74AVC8T245PWR

ORDERABLE PART NUMBER TOP-SIDE MARKING

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DIR

OE

A1

B1

To Seven Other Channels

2

3

22

21

SN74AVC8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

DESCRIPTION/ORDERING INFORMATION (CONTINUED)

The SN74AVC8T245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the outputs so the buses are effectively isolated.

The SN74AVC8T245 is designed so the control pins (DIR and OE) are supplied by V The SN74AVC8T245 solution is compatible with a single-supply system and can be replaced later with a '245

function, with minimal printed circuit board redesign. 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 V To ensure the high-impedance state during power up or power down, OE shall be tied to V

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

isolation feature ensures that if either V

CC

input is at GND, both ports are in the high-impedance state.

CC

FUNCTION TABLE

(each 8-bit section)

INPUTS

OE DIR

L L B data to A bus L H A data to B bus H X All outputs Hi-Z

OPERATION

. The I

off

.

CCA

circuitry disables the outputs,

CC

through a pullup

LOGIC DIAGRAM (POSITIVE LOGIC)

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SN74AVC8T245

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

Absolute Maximum Ratings

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

V

CCA

V

I I I

θ

T

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

(2) The input voltage and output negative-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 rating is observed. (4) The package thermal impedance is calculated in accordance with JESD 51-7.

Supply voltage range –0.5 4.6 V

CCB

Input voltage range

I

Voltage range applied to any output

O

in the high-impedance or power-off state

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

O

Input clamp current VI< 0 –50 mA

IK

Output clamp current VO< 0 –50 mA

OK

Continuous output current ± 50 mA

O

Continuous current through V

Package thermal impedance

JA

Storage temperature range –65 150 ° C

stg

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.

(2)

(1)

MIN MAX UNIT

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

(2)

(2) (3)

, V

CCA

(4)

, or GND ± 100 mA

CCB

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

DGV package 86 PW package 88 ° C/W RHL package 43

+ 0.5

CCA

+ 0.5

CCB

V

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SN74AVC8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

Recommended Operating Conditions

V

CCA

V

CCB

V

IH

V

IL

V

IH

V

IL

V

I

V

O

I

OH

I

OL

∆ t/ ∆ v 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

Supply voltage 1.2 3.6 V Supply voltage 1.2 3.6 V

High-level input voltage

Low-level input voltage

High-level DIR input voltage (referenced to V

Low-level DIR input voltage (referenced to V

Input voltage 0 3.6 V

Output voltage V

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

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

Operating free-air temperature –40 85 ° C

is the V

CCI

is the V

CCO

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

associated with the input port.

CC

associated with the output port.

CC

Data inputs 1.95 V to 2.7 V 1.6 V

Data inputs 1.95 V to 2.7 V 0.7 V

Active state 0 V 3-state 0 3.6

(1) (2) (3)

V

CCI

1.2 V to 1.95 V V

2.7 V to 3.6 V 2

1.2 V to 1.95 V V

2.7 V to 3.6 V 0.8

1.2 V to 1.95 V V

1.95 V to 2.7 V 1.6 V

)

CCA

2.7 V to 3.6 V 2

1.2 V to 1.95 V V

1.95 V to 2.7 V 0.7 V

)

2.7 V to 3.6 V 0.8

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

CCI

V

CCO

1.2 V –3

1.4 V to 1.6 V –6

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

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

MIN MAX UNIT

× 0.65

CCI

× 0.65

CCA

× 0.35

CCI

× 0.35

CCA

CCO

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SN74AVC8T245

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

Electrical Characteristics

(1) (2)

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

PARAMETER TEST CONDITIONS V

IOH= –100 µ A 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

V

OL

Control

I

inputs A or B

I

off

port

A or B

(3)

I

OZ

port

I

CCA

I

CCB

I<Subscript>C CA</Subscript > + I<Subscript>C CB</Subscript >

Control

C

i

inputs A or B

C

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io

port

(1) V

CCO

(2) V

CCI

(3) For I/O ports, the parameter IOZincludes the input leakage current.

IOH= –6 mA 1.4 V 1.4 V 1.05 IOH= –8 mA 1.65 V 1.65 V 1.2 IOH= –9 mA 2.3 V 2.3 V 1.75 IOH= –12 mA 3 V 3 V 2.3 IOL= 100 µ A 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 0.15 IOL= 6 mA 1.4 V 1.4 V 0.35 IOL= 8 mA 1.65 V 1.65 V 0.45 IOL= 9 mA 2.3 V 2.3 V 0.55 IOL= 12 mA 3 V 3 V 0.7

VI= V

VIor VO= 0 to 3.6 V µ A

VO= V VI= V OE = V

VI= V

VI= 3.3 V or GND 3.3 V 3.3 V 3.5 4.5 pF

VO= 3.3 V or GND 3.3 V 3.3 V 6 7 pF

is the V

CC

or GND 1.2 V to 3.6 V 1.2 V to 3.6 V ± 0.025 ± 0.25 ± 1 µ A

CCA

or GND,

CCO

or GND, 3.6 V 3.6 V ± 0.5 ± 2.5 ± 5 µ A

CCI

IH

or GND, IO= 0 0 V 3.6 V –2 µ A

CCI

or GND, IO= 0 0 V 3.6 V 15 µ A

CCI

or GND, IO= 0 1.2 V to 3.6 V 1.2 V to 3.6 V 25 µ A

CCI

associated with the output port.

associated with the input port.

VI= V

IH

IL

CCA

0 V 0 V to 3.6 V ± 0.1 ± 1 ± 5

0 V to 3.6 V 0 V ± 0.1 ± 1 ± 5

1.2 V to 3.6 V 1.2 V to 3.6 V 15

3.6 V 0 V 15

1.2 V to 3.6 V 1.2 V to 3.6 V 15

3.6 V 0 V –2

V

CCB

TA= 25 ° C –40 ° C to 85 ° C

MIN TYP MAX MIN MAX

– 0.2

CCO

UNIT

V

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SN74AVC8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

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

PZH

t

PZL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

OE A ns

OE B ns

OE A ns

OE B ns

CCB

TYP TYP TYP TYP TYP

3.1 2.6 2.5 3 3.5

3.1 2.7 2.5 2.4 2.3

5.3 5.3 5.3 5.3 5.3

5.1 4 3.5 3.2 3.1

4.8 4.8 4.8 4.8 4.8

4.7 4 4.1 4.3 5.1

= 1.2 V (see Figure 10 )

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

PZH

t

PZL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

OE A ns

OE B ns

OE A ns

OE B ns

CCB

TYP MIN MAX MIN MAX MIN MAX MIN MAX

2.7 0.5 5.4 0.5 4.6 0.5 4.9 0.5 6.8

2.6 0.5 5.4 0.5 5.1 0.5 4.7 0.5 4.5

3.7 1.1 8.7 1.1 8.7 1.1 8.7 1.1 8.7

4.8 1.1 7.6 1.1 7.1 1 5.6 1 5.2

3.1 0.5 8.6 0.5 8.6 0.5 8.6 0.5 8.6

4.1 0.5 8.4 0.5 7.6 0.5 7.2 0.5 7.8

= 1.5 V ± 0.1 V (see Figure 10 )

CCA

V

= 1.5 V V

CCB

± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V

CCB

= 1.8 V V

CCB

= 2.5 V V

= 3.3 V

CCB

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SN74AVC8T245

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES517H – DECEMBER 2003 – REVISED FEBRUARY 2007

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

PZH

t

PZL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PHZ

t

PLZ

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

OE A ns

OE B ns

OE A ns

OE B ns

CCB

TYP MIN MAX MIN MAX MIN MAX MIN MAX

2.5 0.5 5.1 0.5 4.4 0.5 4 0.5 3.9

2.5 0.5 4.6 0.5 4.4 0.5 3.9 0.5 3.7

2.5 0.5 4.6 0.5 4.4 0.5 3.9 0.5 3.7 3 1 6.8 1 6.8 1 6.8 1 6.8 3 1 6.8 1 6.8 1 6.8 1 6.8

4.6 1.1 8.2 1 6.7 0.5 5.1 0.5 4.5

2.8 0.5 7.1 0.5 7.1 0.5 7.1 0.5 7.1

3.9 0.5 7.8 0.5 6.9 0.5 6 0.5 5.8

= 1.8 V ± 0.15 V (see Figure 10 )

CCA

V

= 1.5 V V

CCB

± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V

CCB

= 1.8 V V

CCB

= 2.5 V V

= 3.3 V

CCB

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

PZH

t

PZL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PHZ

t

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PLZ

FROM TO

(INPUT) (OUTPUT)

A B ns

B A ns

OE A ns

OE B ns

OE A ns

OE B ns

CCB

TYP MIN MAX MIN MAX MIN MAX MIN MAX

2.4 0.5 4.7 0.5 3.9 0.5 3.1 0.5 2.8

2.4 0.5 4.7 0.5 3.9 0.5 3.1 0.5 2.8 3 0.5 4.9 0.5 4 0.5 3.1 0.5 2.9 3 0.5 4.9 0.5 4 0.5 3.1 0.5 2.9

2.2 0.5 4.8 0.5 4.8 0.5 4.8 0.5 4.8

4.5 1.1 7.9 0.5 6.4 0.5 4.6 0.5 4

1.8 0.5 5.1 0.5 5.1 0.5 5.1 0.5 5.1

3.6 0.5 7.1 0.5 6.3 0.5 5.1 0.5 3.9

= 2.5 V ± 0.2 V (see Figure 10 )

CCA

V

= 1.5 V V

CCB

± 0.1 V ± 0.15 V ± 0.2 V ± 0.3 V

CCB

= 1.8 V V

CCB

= 2.5 V V

= 3.3 V

CCB

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TEXAS INSTRUMENTS SN74AVC8T245 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual

FEATURES

DESCRIPTION/ORDERING INFORMATION

DESCRIPTION/ORDERING INFORMATION (CONTINUED)

Absolute Maximum Ratings

Recommended Operating Conditions

Electrical Characteristics

Switching Characteristics

Switching Characteristics

Switching Characteristics

Switching Characteristics