SN74LVC245APWTE4 datasheet(5/23 Pages) TI

部件名	SN74LVC245APWTE4

功能描述	OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

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制造商	TI [Texas Instruments]

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SN74LVC245A

www.ti.com

SCAS218U – JANUARY 1993 – REVISED FEBRUARY 2010

ELECTRICAL CHARACTERISTICS

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

TA = 25°C

–40°C TO 85°C

PARAMETER

TEST CONDITIONS

VCC

UNIT

MIN

TYP MAX

MIN MAX

IOH = –100 mA

1.65 V to 3.6 V

VCC – 0.2

IOH = –4 mA

1.65 V

1.29

1.2

IOH = –8 mA

2.3 V

1.9

1.7

VOH

V

2.7 V

2.2

IOH = –12 mA

3 V

2.4

IOH = –24 mA

3 V

2.3

2.2

IOL = 100 mA

1.65 V to 3.6 V

0.1

0.2

IOL = 4 mA

1.65 V

0.24

0.45

VOL

IOL = 8 mA

2.3 V

0.3

0.7

V

IOL = 12 mA

2.7 V

0.4

IOL = 24 mA

3 V

0.55

II

Control inputs

VI = 0 to 5.5 V

3.6 V

±1

±5

mA

Ioff

VI or VO = 5.5 V

0

±1

±10

mA

IOZ

(1)

VO = 0 to 5.5 V

3.6 V

±1

±10

mA

VI = VCC or GND

1

10

ICC

IO = 0

3.6 V

mA

3.6 V

≤ VI ≤ 5.5 V

(2)

1

10

One input at VCC – 0.6 V,

ΔICC

2.7 V to 3.6 V

500

mA

Other inputs at VCC or GND

Ci

Control inputs

VI = VCC or GND

3.3 V

4

pF

Cio

A or B ports

VI = VCC or GND

3.3 V

5.5

pF

(1)

For I/O ports, the parameter IOZ includes the input leakage current.

(2)

This applies in the disabled state only.

SWITCHING CHARACTERISTICS

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)

TA = 25°C

–40°C TO 85°C

FROM

TO

PARAMETER

VCC

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

1.8 V ± 0.15 V

1

6

12.2

1

12.7

2.5 V ± 0.2 V

1

3.9

7.8

1

8.3

tpd

A or B

B or A

ns

2.7 V

1

4.2

7.1

1

7.3

3.3 V ± 0.3 V

1.5

3.8

6.1

1.5

6.3

1.8 V ± 0.15 V

1

7

14.8

1

15.3

2.5 V ± 0.2 V

1

4.5

10

1

10.5

ten

OE

A or B

ns

2.7 V

1

5.4

9.3

1

9.5

3.3 V ± 0.3 V

1.5

4.4

8.3

1.5

8.5

1.8 V ± 0.15 V

1

7.8

16.5

1

17

2.5 V ± 0.2 V

1

4

9

1

9.5

tdis

OE

A or B

ns

2.7 V

1

4.4

8.3

1

8.5

3.3 V ± 0.3 V

1.7

4.1

7.3

1.7

7.5

tsk(o)

3.3 V ± 0.3 V

1

ns

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