SN54ABT853, SN74ABT853

8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS

SCBS198G − FEBRUARY 1991 − REVISED OCTOBER 2010

7

POST OFFICE BOX 655303

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (see Figure 1)

SN54ABT853

SN74ABT853

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

t

Pulse duration

LE high or low

3.5

3.5

3.5

ns

Pulse duration

CLR low

4

4

4

ns

t

Setup time

B or PARITY before LE↓

10.2

ns

Setup time

CLR before LE↓

2

2

2

ns

t

Hold time

B or PARITY after LE↓

0

0

0

ns

Hold time

CLR after LE↓

3

3

3

ns

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

temperature (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

SN54ABT853

SN74ABT853

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

A or B

B or A

1.2

4.8

1.2

6.4

1.2

5.3

ns

A or B

B or A

1

1

5.4

1

ns

A

PARITY

2.1

9.5

2.1

13.3

2.1

11.2

ns

A

PARITY

2.5

9.7

2.5

11

2.5

11

ns

OEA or OEB

PARITY

1.8

8.5

1.8

13.6

1.8

10.5

ns

OEA or OEB

PARITY

2.3

8.6

2.3

11.7

2.3

10

ns

CLR

ERR

1

5.5

1

6.3

1

6.2

ns

LE

ERR

1.8

5.1

1.8

6.1

1.8

6

ns

LE

ERR

5.8

6.7

1

6.6

ns

B or PARITY

ERR

2

10.1

2

11.8

2

11.7

ns

B or PARITY

ERR

11.5

12.9

12.8

ns

OEA o OEB

A or B or PARITY

1

1

8.8

1

ns

OEA or OEB

A or B or PARITY

5.8

9.8

6.7

ns

OEA or OEB

A or B or PARITY

7.3

9.5

7.9

ns

OEA or OEB

A or B or PARITY

7.2

8.2

8.1

ns