SN74ABT245BEP

OCTAL BUS TRANSCEIVER

WITH 3STATE OUTPUTS

SCBS798 - FEBRUARY 2004

4

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

TA = 25°C

MIN

MAX

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

MAX

UNIT

VIK

VCC = 4.5 V,

II = −18 mA

−1.2

−1.2

V

VCC = 4.5 V,

IOH = −3 mA

2.5

2.5

VOH

VCC = 5 V,

IOH = −3 mA

3

3

V

VOH

VCC = 4.5 V,

IOH = −24 mA

2

2

V

VOL

VCC = 4.5 V,

IOL = 32 mA

0.55

0.55

V

II

Control inputs

VCC = 0 to 5.5 V, VI = VCC or GND

±1

±1

A

II

A or B ports

VCC = 2.1 V to 5.5 V, VI = VCC or GND

±20

±100

µA

IOZPU

VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V, OE = X

±50

±50

µA

IOZPD

VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V, OE = X

±50

±50

µA

IOZH‡

VCC = 2.1 V to 5.5 V, VO = 2.7 V, OE ≥ 2 V

10

10

µA

IOZL‡

VCC = 2.1 V to 5.5 V, VO = 0.5 V, OE ≥ 2 V

−10

−10

µA

Ioff

VCC = 0,

VI or VO ≤ 4.5 V

±100

µA

ICEX

VCC = 5.5 V, VO = 5.5 V

Outputs high

50

50

µA

IO§

VCC = 5.5 V,

VO = 2.5 V

−50

−140

−180

−50

−180

mA

Outputs high

5

250

250

µA

ICC

A or B ports

VCC = 5.5 V, IO = 0, VI = VCC or GND Outputs low

22

30

30

mA

ICC

A or B ports

VCC = 5.5 V, IO = 0, VI = VCC or GND

Outputs disabled

1

250

250

µA

Data inputs

VCC = 5.5 V, One input at 3.4 V,

Outputs enabled

1.5

1.5

mA

∆ICC¶

Data inputs

VCC = 5.5 V, One input at 3.4 V,

Other inputs at VCC or GND

Outputs disabled

50

50

µA

∆ICC¶

Control inputs

VCC = 5.5 V, One input at 3.4 V,

Other inputs at VCC or GND

1.5

1.5

mA

Ci

Control inputs

VI = 2.5 V or 0.5 V

4

pF

Cio

A or B ports

VO = 2.5 V or 0.5 V

8

pF

† All typical values are at VCC = 5 V.

‡ The parameters IOZH and IOZL include the input leakage current.

§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

¶ This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.

switching characteristics over recommended ranges of supply voltage and operating free-air

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

TA = 25°C

MIN

MAX

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

UNIT

tPLH

A or B

B or A

1

2

3.2

0.8

3.8

ns

tPHL

A or B

B or A

1

2.6

3.5

1

4.2

ns

tPZH

OE

A or B

2

3.5

4.5

1.2

6.2

ns

tPZL

OE

A or B

1.9

4

5.3

1.3

6.8

ns

tPHZ

OE

A or B

2.2

4.4

5.4

2.2

6.1

ns

tPLZ

OE

A or B

1.5

3

4

1.0

4.9

ns

tsk(o)

0.5

ns