74AVCH4T245PWTE4_技术文档

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SCES577A – JUNE 2004 – REVISED APRIL 2005

D

Control Inputs V /V Levels are

D

I

Supports Partial-Power-Down Mode

IH IL

off

Referenced to V

Voltage

Operation

CCA

Fully Configurable Dual-Rail Design Allows

Each Port to Operate Over the Full 1.2-V to

3.6-V Power-Supply Range

Bus Hold on Data Inputs Eliminates the

Need for External Pullup/Pulldown

Resistors

D

I/Os Are 4.6-V Tolerant

D

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)

D, DGV, OR PWPACKAGE

(TOP VIEW)

RGY PACKAGE

(TOP VIEW)

V

CCB

1

2

3

4

5

6

7

8

16

15

14

13

CCA

1DIR

2DIR

1A1

1OE

2OE

1B1

1

16

15

14

13

12

11

10

1DIR

2DIR

1A1

1A2

2A1

2A2

2

3

4

5

6

7

1OE

2OE

1B1

1B2

2B1

2B2

1A2

12 1B2

11

10

9

2A1

2B1

2B2

GND

2A2

GND

8

9

description/ordering information

This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is

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

CCA CCA

V

. V

/V

accepts any supply voltage from 1.2 V to 3.6 V. The SN74AVCH4T245 is optimized to operate with

CCB CCB

V

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

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

/V

as low as 1.2 V. This allows for universal

CCA CCB

The SN74AVCH4T245 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 SN74AVCH4T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by V

.

CCA

This device is fully specified for partial-power-down applications using I . The I circuitry disables the outputs,

off

preventing damaging current backflow through the device when it is powered down.

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.

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Copyright  2005, Texas Instruments Incorporated

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1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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ꢕꢍ ꢈ ꢇ ꢆ ꢖꢁ ꢗꢍ ꢘꢏ ꢓ ꢄꢌꢐ ꢔ ꢅ ꢖꢐꢈꢄꢘ ꢔ ꢈꢓ ꢄꢁ ꢀꢐ ꢄꢈ ꢍꢖ ꢁ ꢄꢁꢎ ꢙ ꢋꢀꢈꢄꢈ ꢔ ꢖ ꢏꢈ ꢑꢏꢈ ꢀ

SCES577A – JUNE 2004 – REVISED APRIL 2005

description/ordering information (continued)

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

†

PACKAGE

T

A

QFN − RGY

SOIC − D

Tape and reel SN74AVCH4T245RGYR

Tube SN74AVCH4T245D

Tape and reel SN74AVCH4T245DR

Tube SN74AVCH4T245PW

WS245

AVCH4T245

−40°C to 85°C

TSSOP − PW

TVSOP − DGV

WS245

Tape and reel SN74AVCH4T245PWR

Tape and reel SN74AVCH4T245DGVR

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

The V

isolation feature ensures that if either V

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

CC

state. The bus-hold circuitry on the powered-up side always stays active.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors

with the bus-hold circuitry is not recommended.

To ensure the high-impedance state during power up or power down, OE should be tied to V

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

through a pullup

CC

FUNCTION TABLE

(each 4-bit section)

INPUTS

OPERATION

OE

L

DIR

L

B data to A bus

A data to B bus

All output Hi-Z

L

H

X

logic diagram (positive logic)

2

3

1DIR

2DIR

15

14

11

1OE

2OE

2B1

4

6

1A1

2A1

13

12

1B1

1B2

5

7

1A2

2A2

10

2B2

2

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SCES577A – JUNE 2004 – REVISED APRIL 2005

†

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

Supply voltage range, V

and V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V

CCA

CCB

Input voltage range, V (see Note 1): I/O ports (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V

I

I/O ports (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V

Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V

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

O

(see Note 1): (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V

(B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V

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

O

(see Notes 1 and 2): (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V

(B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V

+ 0.5 V

CCA

CCB

Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA

IK

OK

I

Output clamp current, I

(V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA

O

Continuous output current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA

Continuous current through V

O

, V

, or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA

CCA CCB

Package thermal impedance, θ (see Note 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W

JA

(see Note 3): DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C/W

(see Note 3): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W

(see Note 4): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39°C/W

Storage temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C

stg

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings 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.

NOTES: 1. The input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.

2. The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed.

3. The package thermal impedance is calculated in accordance with JESD 51-7.

4. The package thermal impedance is calculated in accordance with JESD 51-5.

3

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ꢑꢏꢈ ꢀ

SCES577A – JUNE 2004 – REVISED APRIL 2005

recommended operating conditions (see Notes 5 through 7)

V

CCI

V

CCO

MIN

1.2

MAX

3.6

UNIT

V

Supply voltage

CCA

1.2

3.6

V

CCB

1.2 V to 1.95 V

1.95 V to 2.7 V

2.7 V to 3.6 V

1.2 V to 1.95 V

1.95 V to 2.7 V

2.7 V to 3.6 V

1.2 V to 1.95 V

1.95 V to 2.7 V

2.7 V to 3.6 V

1.2 V to 1.95 V

1.95 V to 2.7 V

2.7 V to 3.6 V

V

× 0.65

1.6

CCI

High-level input

voltage

Data inputs

(see Note 8)

V

IH

V

IL

V

IH

V

IL

V

2

V

× 0.35

CCI

Low-level input

voltage

Data inputs

(see Note 8)

0.7

0.8

V

CCA

× 0.65

1.6

DIR

High-level input

voltage

(referenced to V

)

CCA

(see Note 9)

2

V

CCA

× 0.35

0.7

DIR

Low-level input

voltage

(referenced to V

CCA

(see Note 9)

0.8

V

Input voltage

0

3.6

V

I

Active state

3-state

V

CCO

Output voltage

O

3.6

−3

−6

−8

−9

−12

3

1.2 V

1.4 V to 1.6 V

1.65 V to 1.95 V

2.3 V to 2.7 V

3 V to 3.6 V

1.2 V

I

High-level output current

Low-level output current

mA

OH

OL

1.4 V to 1.6 V

1.65 V to 1.95 V

2.3 V to 2.7 V

3 V to 3.6 V

6

8

I

9

12

5

∆t/∆v Input transition rise or fall rate

Operating free-air temperature

NOTES: 5. V is the V associated with the data input port.

ns/V

T

A

−40

85

°C

CCI

CCO

CC

6.

V

is the V

associated with the output port.

7. All unused data inputs of the device must be held at V

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

CCI

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

8. For V

9. For V

values not specified in the data sheet, V

= V

x 0.7 V, V

= V

CCI

x 0.3 V.

CCI

IH(min)

CCI

IL(max)

x 0.7 V, V

= V

CCA

IL(max)

CCA

4

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SCES577A – JUNE 2004 – REVISED APRIL 2005

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted) (see Note 10)

T

A

= 25°C

−40°C to 85°C

PARAMETER

TEST CONDITIONS

UNIT

V

CCA

V

CCB

MIN

TYP

MAX

MIN

MAX

I

= −100 µA

= −3 mA

= −6 mA

1.2 V to 3.6 V

1.2 V

1.2 V to 3.6 V

1.2 V

V

CCO

– 0.2 V

OH

OL

0.95

1.4 V

1.05

1.2

V

OH

V = V

IH

V

I

= −8 mA

= −9 mA

= −12 mA

= 100 µA

= 3 mA

1.65 V

2.3 V

1.65 V

2.3 V

1.75

2.3

3 V

1.2 V to 3.6 V

1.2 V

1.2 V to 3.6 V

1.2 V

0.2

0.15

= 6 mA

1.4 V

0.35

0.45

0.55

0.7

V

OL

V = V

I IL

V

= 8 mA

1.65 V

2.3 V

1.65 V

2.3 V

= 9 mA

= 12 mA

3 V

DIR

input

I

V = V

CCA

or GND

1.2 V to 3.6 V

0.025

25

0.25

1

µA

I

V = 0.42 V

I

1.2 V

1.4 V

1.65 V

2.3 V

3.3 V

1.2 V

1.4 V

1.65 V

2.3 V

3.3 V

1.2 V

1.6 V

1.95 V

2.7 V

3.6 V

1.2 V

1.6 V

1.95 V

2.7 V

3.6 V

1.2 V

1.4 V

1.65 V

2.3 V

3.3 V

1.2 V

1.4 V

1.65 V

2.3 V

3.3 V

1.2 V

1.6 V

1.95 V

2.7 V

3.6 V

1.2 V

1.6 V

1.95 V

2.7 V

3.6 V

V = 0.49 V

I

15

25

†

V = 0.58 V

I

BHL

V = 0.7 V

I

45

V = 0.8 V

I

100

V = 0.78 V

I

-25

50

V = 0.91 V

I

-15

-25

‡

V = 1.07 V

I

µA

BHH

V = 1.6 V

I

-45

V = 2 V

I

-100

125

200

300

500

§

V = 0 to V

CCI

BHLO

I

-50

-125

-200

-300

-500

¶

V = 0 to V

CCI

BHHO

I

†

‡

The bus-hold circuit can sink at least the minimum low sustaining current at V max. I

IL BHL

should be measured after lowering V to GND and

IN

then raising it to V max.

IL

The bus-hold circuit can source at least the minimum high sustaining current at V min. I

should be measured after raising V to V and

IN CC

IH

BHH

then lowering it to V min.

IH

§

¶

An external driver must source at least I

to switch this node from low to high.

BHLO

to switch this node from high to low.

An external driver must sink at least I

BHHO

associated with the output port.

NOTE 10: V

CCO

is the V

CC

5

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SCES577A – JUNE 2004 – REVISED APRIL 2005

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted) (see Notes 11 and 12) (continued)

T

A

= 25°C

TYP

0.1

−40°C to 85°C

PARAMETER

TEST CONDITIONS

UNIT

V

CCB

CCA

MIN

MAX

MIN

MAX

A port

0 V

0 to 3.6 V

0 V

1

5

I

V or V = 0 to 3.6 V

µA

off

I

O

B port

0 to 3.6 V

0.1

V

O

= V

or GND,

or GND

A or B

CCO

OE = V

3.6 V

0.5

2.5

5

IH

V = V

port

†

I

CCI

I

OZ

OE =

don’t

care

0 V

3.6 V

0 V

5

B port

V

O

= V or GND,

CCO

CCI

µA

V = V

or GND

I

3.6 V

A port

1.2 V to 3.6 V

0 V

1.2 V to 3.6 V

3.6 V

8

-2

8

I

V = V

or GND

I

O

= 0

CCA

I

CCI

3.6 V

0 V

1.2 V to 3.6 V

0 V

1.2 V to 3.6 V

3.6 V

8

I

V = V

or GND

I

= 0

CCB

I

CCI

O

3.6 V

0 V

-2

16

ꢀ

I

V = V

1.2 V to 3.6 V

µA

CCA

CCB

I

CCI

O

Control

inputs

C

V = 3.3 V or GND

3.3 V

3.5

6

4.5

7

pF

i

I

A or B

ports

V

O

= 3.3 V or GND

pF

io

†

For I/O ports, the parameter I

includes the input leakage current.

associated with the output port.

OZ

NOTES: 11. V

is the V

CC

CCO

V

12.

is the V associated with the input port.

CCI

CC

switching characteristics over recommended operating free-air temperature range,

= 1.2 V (see Figure 11)

V

CCA

V

= 1.5 V

V

= 1.8 V

V

= 2.5 V

V = 3.3 V

CCB

0.1 V

CCB

0.15 V

CCB

0.2 V

V

= 1.2 V

CCB

TYP

3.4

FROM

(INPUT)

TO

(OUTPUT)

0.3 V

PARAMETER

UNIT

TYP

2.9

3.1

4.7

4.3

5.2

5.1

TYP

2.7

2.8

4.3

3.9

5.2

5

TYP

2.6

3.9

3.6

4.3

4.7

TYP

2.8

2.6

3.7

3.6

4.8

5.5

t

PLH

PHL

PLH

PHL

PZH

PZL

PZH

PZL

PHZ

PLZ

PHZ

PLZ

A

B

A

B

A

B

ns

3.4

3.6

5.6

5

B

OE

5

6.2

5.9

5

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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ꢃ ꢋꢌꢍ ꢈ ꢎꢏꢄ ꢐꢋꢀ ꢏꢑꢑꢐꢒ ꢌꢏꢀ ꢈ ꢓꢄꢁꢀ ꢆꢔ ꢍ ꢅꢔ ꢓ

ꢕ ꢍ ꢈꢇ ꢆꢖ ꢁꢗ ꢍ ꢘꢏ ꢓ ꢄꢌꢐ ꢔ ꢅꢖ ꢐꢈꢄꢘ ꢔ ꢈ ꢓꢄꢁꢀ ꢐꢄꢈ ꢍꢖ ꢁ ꢄꢁꢎ ꢙ ꢋꢀꢈꢄꢈ ꢔ ꢖ ꢏꢈ ꢑ ꢏꢈꢀ

SCES577A – JUNE 2004 – REVISED APRIL 2005

switching characteristics over recommended operating free-air temperature range,

= 1.5 V 0.1 V (see Figure 11)

V

CCA

V

= 1.5 V

0.1 V

V

= 1.8 V

0.15 V

V

= 2.5 V

0.2 V

V

= 3.3 V

0.3 V

CCB

V

= 1.2 V

CCB

TYP

3.2

FROM

(INPUT)

TO

(OUTPUT)

PARAMETER

UNIT

MIN

0.3

0.7

1.4

1.8

1.9

MAX

6.3

MIN

0.3

0.5

1.1

1.5

1.9

MAX

5.2

6

MIN

0.4

0.7

0.9

1.3

1.4

MAX

4.2

MIN

0.4

0.3

0.4

0.9

1.6

1.2

MAX

4.2

t

PLH

PHL

PLH

PHL

PZH

PZL

PZH

PZL

PHZ

PLZ

PHZ

PLZ

A

B

A

B

A

B

ns

3.2

3.3

4.9

4.5

5.6

5.2

6.3

4.2

6.3

5.7

5.6

B

6.3

6

5.7

5.6

9.6

9.5

7.7

10.2

9.1

9.4

OE

9.6

9.4

9.6

5.8

5.6

9.6

5.8

5.6

10.2

10.3

10.2

7.4

10.2

7.6

7.4

7.6

switching characteristics over recommended operating free-air temperature range,

= 1.8 V 0.15 V (see Figure 11)

V

CCA

V

= 1.5 V

0.1 V

V

= 1.8 V

0.15 V

V

= 2.5 V

0.2 V

V

= 3.3 V

0.3 V

CCB

V

= 1.2 V

CCB

TYP

2.9

FROM

(INPUT)

TO

(OUTPUT)

PARAMETER

UNIT

MIN

0.1

0.6

1

MAX

6

MIN

0.1

0.5

1

MAX

4.9

7.3

7.4

8.7

MIN

0.1

0.3

0.6

0.8

1.3

1.2

MAX

3.9

4.6

7.3

5.3

8.7

6.9

MIN

0.3

0.4

0.8

1.6

1

MAX

3.9

4.5

7.2

4.6

8.7

6.9

t

PLH

PHL

PLH

PHL

PZH

PZL

PZH

PZL

PHZ

PLZ

PHZ

PLZ

A

B

A

B

A

B

ns

2.9

3

6

5.3

7.4

9.2

8.6

9.9

B

3

4.4

4.1

5.4

5

OE

1

1.2

1.6

1.7

1

1.8

1.6

5

1

7

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ꢀ ꢁꢂ ꢃꢄꢅꢆ ꢇ ꢃ ꢈꢉ ꢃ ꢊ

ꢃꢋ ꢌꢍ ꢈ ꢎ ꢏꢄ ꢐ ꢋꢀ ꢏꢑ ꢑꢐꢒ ꢌꢏ ꢀ ꢈꢓ ꢄꢁ ꢀꢆ ꢔꢍ ꢅ ꢔ ꢓ

ꢕꢍ ꢈ ꢇ ꢆ ꢖꢁ ꢗꢍ ꢘꢏ ꢓ ꢄꢌꢐ ꢔ ꢅ ꢖꢐꢈꢄꢘ ꢔ ꢈꢓ ꢄꢁ ꢀꢐ ꢄꢈ ꢍꢖ ꢁ ꢄꢁꢎ ꢙ ꢋꢀꢈꢄꢈ ꢔ ꢖ ꢏꢈ ꢑꢏꢈ ꢀ

SCES577A – JUNE 2004 – REVISED APRIL 2005

switching characteristics over recommended operating free-air temperature range,

= 2.5 V 0.2 V (see Figure 11)

V

CCA

V

= 1.5 V

0.1 V

V

= 1.8 V

0.15 V

V

= 2.5 V

0.2 V

V

= 3.3 V

0.3 V

CCB

V

= 1.2 V

CCB

TYP

2.8

FROM

(INPUT)

TO

(OUTPUT)

PARAMETER

UNIT

MIN

0.1

0.6

0.7

0.9

1

MAX

5.7

4.2

6.5

8.8

8.4

9.4

MIN

0.1

0.4

0.7

0.8

1

MAX

4.6

3.9

5.2

7

MIN

0.2

0.6

1

MAX

3.5

3.4

4.8

6.2

MIN

0.1

0.2

0.4

0.6

1

MAX

3.6

3.3

4.8

4

t

PLH

PHL

PLH

PHL

PZH

PZL

PZH

PZL

PHZ

PLZ

PHZ

PLZ

A

B

A

B

A

B

ns

2.8

2.7

4

B

OE

4

3.8

4.7

4.5

7

4

8.4

8.2

6.6

5.2

1

1.5

1.3

1.1

0.9

switching characteristics over recommended operating free-air temperature range,

= 3.3 V 0.3 V (see Figure 11)

V

CCA

V

= 1.5 V

0.1 V

V

= 1.8 V

0.15 V

V

= 2.5 V

0.2 V

V

= 3.3 V

0.3 V

CCB

V

= 1.2 V

CCB

TYP

2.9

FROM

(INPUT)

TO

(OUTPUT)

PARAMETER

UNIT

MIN

0.1

0.6

0.8

0.7

1.4

MAX

5.6

4.2

8.7

9.3

MIN

0.1

0.4

0.6

0.7

1.2

MAX

4.5

3.4

5.2

6.8

8.3

8.1

MIN

0.1

0.2

0.6

0.5

0.7

1

MAX

3.3

3

MIN

0.1

0.4

0.5

0.7

0.8

MAX

2.9

2.8

3.8

6.6

6.2

t

PLH

PHL

PLH

PHL

PZH

PZL

PZH

PZL

PHZ

PLZ

PHZ

PLZ

A

B

A

B

A

B

ns

2.9

2.6

3.8

3.7

4.8

5.3

B

3

3.8

4.7

5.6

6.4

OE

1

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

ꢀꢁ ꢂꢃ ꢄꢅ ꢆꢇ ꢃꢈ ꢉꢃ ꢊ

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ꢃ

ꢕ

ꢍ

ꢈ

ꢇ

ꢆ

ꢖ

ꢁ

ꢗ

ꢍ

ꢘ

ꢏ

ꢓ

ꢄ

ꢌ

ꢐ

ꢔ

ꢅ

ꢖ

ꢐ

ꢈ

ꢄ

ꢘ

ꢔ

ꢈ

ꢓ

ꢄ

ꢁ

ꢀ

ꢐꢄꢈ

ꢍ

ꢖ

ꢁ

ꢄ

ꢁ

ꢎ

ꢙ

ꢋ

ꢀ

ꢈ

ꢄ

ꢈ

ꢔ

ꢖ

ꢏ

ꢈ

ꢑ

ꢏ

ꢈ

ꢀ

SCES577A – JUNE 2004 – REVISED APRIL 2005

operating characteristics, T = 25°C

A

V

=

V

=

V

=

V

=

V

=

CCA

TEST

CONDITIONS

V

= 1.2 V

V

= 1.5 V

V

= 1.8 V

V

= 2.5 V

V

= 3.3 V

PARAMETER

CCB

UNIT

TYP

Outputs

Enabled

1

1.5

2

1

A to B

B to A

A to B

B to A

Outputs

Disabled

1

14

1

C

= 0,

L

†

pdA

C

f = 10 MHz,

t = t =1 ns

pF

Outputs

Enabled

r

f

12

1

12.5

1

13

1

15

1

Outputs

Disabled

Outputs

Enabled

12

1

12.5

1

13

1

14

1

15

1

Outputs

Disabled

C

= 0,

L

†

pdB

C

pF

f = 10 MHz,

t = t =1 ns

Outputs

Enabled

1

2

r

f

Outputs

Disabled

1

†

Power dissipation capacitance per transceiver

9

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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ꢕ

ꢍ

ꢈ

ꢇ

ꢆ

ꢖ

ꢁ

ꢗꢍ

ꢘ

ꢏ

ꢓ

ꢄ

ꢌ

ꢐ

ꢔ

ꢅ

ꢖ

ꢐ

ꢈ

ꢄ

ꢘ

ꢔ

ꢈ

ꢓ

ꢄ

ꢁ

ꢀ

ꢐ

ꢄ

ꢈ

ꢍ

ꢖ

ꢁ

ꢄ

ꢁ

ꢎ

ꢙ

ꢋ

ꢀ

ꢈ

ꢄ

ꢈ

ꢔ

ꢖ

ꢏ

ꢈ

ꢑ

ꢏ

ꢈ

ꢀ

SCES577A – JUNE 2004 – REVISED APRIL 2005

PARAMETER MEASUREMENT INFORMATION

2 × V

CCO

TEST

S1

R

Open

GND

t

Open

L

pd

/t

From Output

Under Test

t

2 × V

CCO

GND

PLZ PZL

/t

PHZ PZH

t

C

L

R

L

(see Note A)

t

LOAD CIRCUIT

w

V

CCI

V /2

CCI

V /2

CCI

Input

V

TP

C

R

V

CCO

L

0 V

1.2 V

2 kΩ

0.1 V

15 pF

VOLTAGE WAVEFORMS

PULSE DURATION

1.5 V 0.1 V

1.8 V 0.15 V

2.5 V 0.2 V

3.3 V 0.3 V

0.15 V

0.3 V

V

CCA

Output

Control

(low-level

enabling)

V

CCA

/2

V

CCA

/2

0 V

t

PLZ

PZL

V

CCO

Output

Waveform 1

V

CCI

V

CCO

/2

Input

V /2

CCI

V /2

CCI

V

OL

+ V

TP

S1 at 2 × V

CCO

OL

0 V

(see Note B)

t

PZH

PHZ

t

PHL

PLH

Output

Waveform 2

S1 at GND

V

OH

V

OH

V

OH

− V

TP

V

CCO

Output

V

CCO

/2

V

/2

CCO

(see Note B)

0 V

V

OL

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

NOTES: A.

C

includes probe and jig capacitance.

L

B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.

C. All input pulses are supplied by generators having the following characteristics: PRRꢁ10 MHz, Z = 50 Ω, dv/dt ≥ 1 V/ns,

O

dv/dt ≥1 V/ns.

D. The outputs are measured one at a time, with one transition per measurement.

E.

F.

G.

H.

I.

t

V

and t

are the same as t

.

PLZ

PZL

PLH

PHZ

PZH

dis

are the same as t

are the same as t .

en

and t

PHL

is the V

pd

associated with the input port.

associated with the output port.

CC

CCI

CC

is the V

CCO

Figure 1. Load Circuit and Voltage Waveforms

10

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PACKAGE OPTION ADDENDUM

www.ti.com

9-Aug-2005

PACKAGING INFORMATION

Orderable Device

74AVCH4T245DGVRE4

74AVCH4T245PWRE4

74AVCH4T245PWTE4

74AVCH4T245RGYRG4

SN74AVCH4T245D

Status ⁽¹⁾

ACTIVE

Package Package

Pins Package Eco Plan ⁽²⁾Lead/Ball Finish MSL Peak Temp ⁽³⁾

Qty

Type

Drawing

TVSOP

DGV

16

2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

TSSOP

QFN

PW

RGY

D

2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

1000 Green (RoHS & CU NIPDAU Level-2-260C-1YEAR

no Sb/Br)

SOIC

40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

SN74AVCH4T245DE4

SN74AVCH4T245DGVR

SN74AVCH4T245DR

SN74AVCH4T245DRE4

SN74AVCH4T245DT

SN74AVCH4T245DTE4

SN74AVCH4T245PW

SN74AVCH4T245PWE4

SN74AVCH4T245PWR

SN74AVCH4T245PWT

SN74AVCH4T245RGYR

SOIC

D

40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

TVSOP

SOIC

DGV

D

2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

SOIC

D

2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

SOIC

D

250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

SOIC

D

250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

TSSOP

QFN

PW

RGY

90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM

no Sb/Br)

1000 Green (RoHS & CU NIPDAU Level-2-260C-1YEAR

no Sb/Br)

⁽¹⁾The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in

a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.

OBSOLETE: TI has discontinued the production of the device.

(2)

Eco Plan

-

The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS

&

no Sb/Br)

-

please check

http://www.ti.com/productcontent for the latest availability information and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined.

Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements

for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered

at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.

Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame

retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

(3)

MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder

temperature.

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

9-Aug-2005

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is

provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the

accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take

reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on

incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited

information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI

to Customer on an annual basis.

Addendum-Page 2

MECHANICAL DATA

MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000

DGV (R-PDSO-G**)

PLASTIC SMALL-OUTLINE

24 PINS SHOWN

0,23

0,13

M

0,07

0,40

24

13

0,16 NOM

4,50

4,30

6,60

6,20

Gage Plane

0,25

0°–ā8°

0,75

1

12

0,50

A

Seating Plane

0,08

0,15

0,05

1,20 MAX

PINS **

14

16

20

24

38

48

56

DIM

A MAX

A MIN

3,70

3,50

3,70

3,50

5,10

4,90

5,10

4,90

7,90

7,70

9,80

9,60

11,40

11,20

4073251/E 08/00

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice.

C. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side.

D. Falls within JEDEC: 24/48 Pins – MO-153

14/16/20/56 Pins – MO-194

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MECHANICAL DATA

MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999

PW (R-PDSO-G**)

PLASTIC SMALL-OUTLINE PACKAGE

14 PINS SHOWN

0,30

0,19

M

0,10

0,65

14

8

0,15 NOM

4,50

4,30

6,60

6,20

Gage Plane

0,25

1

7

0°–8°

A

0,75

0,50

Seating Plane

0,10

0,15

0,05

1,20 MAX

PINS **

8

14

16

20

24

28

DIM

3,10

2,90

5,10

4,90

5,10

4,90

6,60

6,40

7,90

9,80

9,60

A MAX

A MIN

7,70

4040064/F 01/97

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice.

C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.

D. Falls within JEDEC MO-153

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IMPORTANT NOTICE

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enhancements, improvements, and other changes to its products and services at any time and to discontinue

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TI warrants performance of its hardware products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI

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型号：	74AVCH4T245PWTE4
厂家：	TEXAS INSTRUMENTS
描述：	4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS 可配置电压转换和三态输出的4位双电源总线收发器总线驱动器总线收发器逻辑集成电路光电二极管输出元件
文件：	总17页 (文件大小：381K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

74AVCH4T245PWTE4 [TI]

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