SN74BCT899

9BIT LATCHABLE TRANSCEIVER

WITH PARITY GENERATOR/CHECKER

SCBS253 − JUNE 1992 − REVISED NOVEMBER 1993

2−6

POST OFFICE BOX 655303

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

1.9

6

7.6

1.9

9.1

ns

tPHL

A or B

B or A

1.8

5.2

6.8

1.8

8.1

ns

tPLH

A or B

BPAR or APAR

4.3

11

13

4.3

16.1

ns

tPHL

A or B

BPAR or APAR

4.5

10.7

12.7

4.5

15.3

ns

tPLH

APAR or BPAR

BPAR or APAR

2.2

5.2

6.7

2.2

8

ns

tPHL

APAR or BPAR

BPAR or APAR

1.7

4.7

6.3

1.7

7.6

ns

tPLH

A, APAR, or

ERRA or ERRB

3.4

10.6

12.6

3.4

15.7

ns

tPHL

A, APAR, or

B, BPAR

ERRA or ERRB

3.6

10.5

12.5

3.6

15.3

ns

tPLH

ODD/EVEN

ERRA or ERRB

4.6

8.8

10.5

4.6

12.8

ns

tPHL

ODD/EVEN

ERRA or ERRB

4.1

8.4

10.2

4.1

12.8

ns

tPLH

ODD/EVEN

BPAR or APAR

4.5

9

10.7

4.5

13.1

ns

tPHL

ODD/EVEN

BPAR or APAR

4.4

8.5

10.7

4.4

13.3

ns

tPLH

SEL

BPAR or APAR

1.4

4.6

6.2

1.4

7.7

ns

tPHL

SEL

BPAR or APAR

1.6

4.4

5.9

1.6

7.1

ns

tPLH

LEAB OR LEBA

B or A

2.6

7.6

9.3

2.6

10.9

ns

tPHL

LEAB OR LEBA

B or A

3.3

6.5

8.2

3.3

9.3

ns

tPLH

LEAB OR LEBA

BPAR or APAR

3

6.7

8.3

3

9.9

ns

tPHL

LEAB OR LEBA

BPAR or APAR

(parity feed-through)

3

6.1

7.7

3

8.7

ns

tPLH

LEAB OR LEBA

BPAR or APAR

5.2

10.2

12.1

5.2

14.8

ns

tPHL

LEAB OR LEBA

BPAR or APAR

(parity generated)

5.1

8.9

10.7

5.1

12.5

ns

tPLH

LEAB OR LEBA

ERRB or ERRA

5.3

10.3

12.3

5.3

14.9

ns

tPHL

LEAB OR LEBA

ERRB or ERRA

5

9.2

11

5

12.9

ns

tPZH

OEAB or OEBA

B or A

1.8

5.6

7.2

1.8

9

ns

tPZL

OEAB or OEBA

B or A

2.1

10.5

12.2

2.1

13.9

ns

tPHZ

OEAB or OEBA

B or A

2.9

6.4

8.1

2.9

9.8

ns

tPLZ

OEAB or OEBA

B or A

2.1

5.5

7.1

2.1

8.1

ns

NOTE 3: Load circuits and voltage waveforms are shown in Section 1.