SN54BCT25245, SN74BCT25245

25-

Ω OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS053B – MAY 1990 – REVISED APRIL 1994

2–4

POST OFFICE BOX 655303

switching characteristics (see Note 2)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

CL = 50 pF,

R1 = 500

Ω,

R2 = 500

Ω,

TA = 25°C

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

R1 = 500

Ω,

R2 = 500

Ω,

TA = MIN to MAX†

UNIT

′BCT25245

SN54BCT25245

SN74BCT25245

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

A

B

1.2

3.3

5.1

1.2

5.8

1.2

5.7

ns

tPHL

A

B

1.9

4.3

6.7

1.9

7.6

1.9

7.2

ns

tPLH

B

A

1.2

3.3

4.8

1.2

5.7

1.2

5.5

ns

tPHL

B

A

2.1

4

5.6

2.1

6.4

2.1

6.2

ns

tPZH

OE

A

3.7

6.3

8.4

3.7

10.1

3.7

9.6

ns

tPZL

OE

A

4.5

7.4

9.2

4.5

11.1

4.5

10.3

ns

tPHZ

OE

A

1.8

3.7

5.5

1.8

6.4

1.8

6.2

ns

tPLZ

OE

A

3.3

5.1

7.2

3.3

9.6

3.3

8.3

ns

tPZH

OE

B

3.4

5.7

7.9

3.4

9.2

3.4

8.9

ns

tPZL

OE

B

4.3

6.6

8.7

4.3

10.1

4.3

9.7

ns

tPHZ

OE

B

2.7

4.5

6.3

2.7

7.2

2.7

6.9

ns

tPLZ

OE

B

1.7

4.5

6.8

1.7

8.3

1.7

7.5

ns

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

NOTE 2: Load circuits and voltage waveforms are shown in Section 1.

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.