SN54BCT652, SN74BCT652

OCTAL BUS TRANSCEIVERS AND REGISTERS

WITH 3-STATE OUTPUTS

SCBS038A − AUGUST 1989 − REVISED NOVEMBER 1993

2−6

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

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

temperature, CL = 50 pF (unless otherwise noted) (see Note 2)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

TA = 25°C

SN54BCT652

SN74BCT652

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

TYP

MIN

MIN

MAX

MIN

MAX

UNIT

fmax

77

77

77

MHz

tPLH

CLKBA

A

2.6

6.9

8.9

2.6

11.6

2.6

10.5

ns

tPHL

CLKBA

A

2.8

6.8

8.8

2.8

10.7

2.8

9.9

ns

tPLH

CLKAB

B

2.6

6.9

8.9

2.6

11.6

2.6

10.5

ns

tPHL

CLKAB

B

2.8

6.8

8.8

2.8

10.7

2.8

9.9

ns

tPLH

A

B

1.7

5.8

7.5

1.7

10.3

1.7

8.9

ns

tPHL

A

B

2.4

6.5

8.2

2.4

11

2.4

9.8

ns

tPLH

B

A

1.7

5.8

7.5

1.7

10.3

1.7

8.9

ns

tPHL

B

A

2.4

6.5

8.2

2.4

11

2.4

9.8

ns

tPLH

SBA†

A

3.5

8.8

10.8

3.5

14.2

3.5

13.1

ns

tPHL

SBA†

(with B high)

A

2.4

5.9

7.7

2.4

9.1

2.4

8.5

ns

tPLH

SBA†

A

3

7.6

9.7

3

12.4

3

11.3

ns

tPHL

SBA†

(with B low)

A

3.8

8.3

10.4

3.8

12.9

3.8

12.5

ns

tPLH

SAB†

B

3.5

8.8

10.8

3.5

14.2

3.5

13.1

ns

tPHL

SAB†

(with A high)

B

2.4

5.9

7.7

2.4

9.1

2.4

8.5

ns

tPLH

SAB†

B

3

7.6

9.7

3

12.4

3

11.3

ns

tPHL

SAB†

(with A low)

B

3.8

8.3

10.4

3.8

12.9

3.8

12.5

ns

tPZH

OEBA

A

2.5

7.2

8.9

2.5

11.2

2.5

10.6

ns

tPZL

OEBA

A

3.2

8.1

10.1

3.2

12.6

3.2

12

ns

tPHZ

OEBA

A

2.8

6.7

8.6

2.8

10.9

2.8

10

ns

tPLZ

OEBA

A

2.4

6.3

8.4

2.4

10.5

2.4

9.5

ns

tPZH

OEAB

B

1.5

5.4

7.1

1.5

9

1.5

8.1

ns

tPZL

OEAB

B

2.3

6.2

8.1

2.3

10.3

2.3

9.3

ns

tPHZ

OEAB

B

3.5

8.2

10

3.5

12.2

3.5

11.6

ns

tPLZ

OEAB

B

2.8

7.2

9.5

2.8

12

2.8

11.3

ns

† These parameters are measured with the internal output state of the storage register opposite to that of the bus input.

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