SN54BCT543, SN74BCT543

OCTAL REGISTERED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS026C – NOVEMBER 1988 – REVISED APRIL 1994

2–5

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

′BCT543

SN54BCT543

SN74BCT543

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

AorB

BorA

2

5.7

7.5

2

9.9

2

8.8

ns

tPHL

A or B

B or A

2

6.3

8.2

2

9.7

2

9.6

ns

tPLH

LE

AorB

2

8.2

10.3

2

13.9

2

12.9

ns

tPHL

LE

A or B

2

8.5

10.6

2

13.2

2

12.7

ns

tPZH

OE

AorB

1

6.8

8.6

1

11.4

1

10.7

ns

tPZL

OE

A or B

1

8.7

10.8

1

12.8

1

12.3

ns

tPHZ

OE

AorB

1

5.5

7.2

1

8.8

1

8.1

ns

tPLZ

OE

A or B

1

4.7

6.4

1

8.1

1

7.2

ns

tPZH

CE

AorB

1

7.6

9.8

1

12.8

1

12

ns

tPZL

CE

A or B

1

9.5

11.6

1

13.8

1

13.5

ns

tPHZ

CE

AorB

1

5.8

7.5

1

9.3

1

8.5

ns

tPLZ

CE

A or B

1

4.8

6.7

1

8.4

1

7.6

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.