SN54ABT16853, SN74ABT16853

DUAL 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS

SCBS153B – OCTOBER 1992 – REVISED JANUARY 1997

6

POST OFFICE BOX 655303

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

temperature (unless otherwise noted) (see Figure 1)

VCC = 5 V,

TA = 25°C

SN54ABT16853

SN74ABT16853

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

t

Pulse duration

LE high or low

8.5

8.5

8.5

ns

tw

Pulse duration

CLR low

4

4

4

ns

t

Setup time

A, B, and PARITY before LE

↓

10

10

10

ns

tsu

Setup time

CLR before LE

↓

0

0

0

ns

th

Hold time

A, B, and PARITY after LE

↓

0

0

0

ns

th

Hold time

CLR after LE

↓

0

0

0

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)

VCC = 5 V,

TA = 25°C

SN54ABT16853

SN74ABT16853

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

AorB

BorA

1.5

2.5

3.3

1.5

4.2

1.5

4.1

ns

tPHL

A or B

B or A

2

3.1

3.9

2

4.5

2

4.3

ns

tPLH

AorOE

PARITY

2

4.6

5.9

2

7.3

2

7.1

ns

tPHL

A or OE

PARITY

2

4.8

6.2

2

7.6

2

7.2

ns

tPLH

CLR

ERR

2

3.7

5.1

2

5.9

2

5.7

ns

tPZH

OE

AorB

2

3.9

4.9

2

5.8

2

5.6

ns

tPZL

OE

A or B

2.5

4.3

5.1

2.5

6.2

2.5

6

ns

tPHZ

OE

AorB

2

3.6

4.5

2

5.5

2

5.4

ns

tPLZ

OE

A or B

1.5

3

3.8

1.5

4.7

1.5

4.3

ns

tPZH

OE

PARITY

2

3.6

5

2

5.8

2

5.7

ns

tPZL

OE

PARITY

2.5

4.4

5.8

2.5

6.7

2.5

6.5

ns

tPHZ

OE

PARITY

1.5

3.2

4

1.5

4.8

1.5

4.7

ns

tPLZ

OE

PARITY

1.5

2.9

3.7

1.5

4.2

1.5

4.1

ns

tPLH

LE

ERR

2

3.5

4.2

2

5

2

4.8

ns

tPHL

LE

ERR

2

3.4

4.4

2

5.2

2

4.9

ns

tPLH

A B or PARITY

ERR

2

4.5

6.3

2

7.5

2

7.2

ns

tPHL

A, B, or PARITY

ERR

2

4.8

6.3

2

7.7

2

7.4

ns

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.