SN54LVTH16543, SN74LVTH16543

3.3-V ABT 16-BIT REGISTERED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS699D – JULY 1997 – REVISED APRIL 1999

7

POST OFFICE BOX 655303

timing requirements over recommended operating free-air temperature range (unless otherwise

noted) (see Figure 1)

SN54LVTH16543

SN74LVTH16543

VCC = 3.3 V

± 0.3 V

VCC = 2.7 V

VCC = 3.3 V

± 0.3 V

VCC = 2.7 V

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

tw

Pulse duration, LEAB or LEBA low

3.3

3.3

3.3

3.3

ns

A or B before

Data high

0.5

0.5

0.5

0.5

t

Setup time

A or B before

LEAB

↑ or LEBA↑

Data low

0.8

1.3

0.8

1.3

ns

tsu

Setup time

A or B before

Data high

0

0

0

0

ns

A or B before

CEAB

↑ or CEBA↑

Data low

0.6

1.1

0.6

1.1

A or B after

Data high

1.5

0.7

1.5

0.7

th

Hold time

A or B after

LEAB

↑ or LEBA↑

Data low

1.2

1.3

1.2

1.3

ns

th

Hold time

A or B after

Data high

1.7

0.9

1.7

0.9

ns

CEAB

↑ or CEBA↑

Data low

1.6

1.8

1.6

1.8

(unless otherwise noted) (see Figure 1)

SN54LVTH16543

SN74LVTH16543

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 3.3 V

± 0.3 V

VCC = 2.7 V

VCC = 3.3 V

± 0.3 V

VCC = 2.7 V

UNIT

MIN

MAX

MIN

MAX

MIN

TYP†

MAX

MIN

MAX

tPLH

AorB

BorA

1.1

3.4

3.9

1.2

2.3

3.2

3.7

ns

tPHL

A or B

B or A

1.1

3.4

3.9

1.2

2.1

3.2

3.7

ns

tPLH

LE

AorB

1.2

4.1

5.1

1.3

2.5

3.9

4.9

ns

tPHL

LE

A or B

1.2

4.1

5.1

1.3

2.3

3.9

4.9

ns

tPZH

OE

AorB

1.2

4.5

5.6

1.3

2.8

4.3

5.4

ns

tPZL

OE

A or B

1.2

4.5

5.6

1.3

2.8

4.3

5.4

ns

tPHZ

OE

AorB

1.9

4.9

5.4

2

3.5

4.7

5.2

ns

tPLZ

OE

A or B

1.9

4.6

4.7

2

3.3

4.4

4.5

ns

tPZH

CE

AorB

1.2

4.7

5.8

1.3

3

4.5

5.6

ns

tPZL

CE

A or B

1.2

4.7

5.8

1.3

3

4.5

5.6

ns

tPHZ

CE

AorB

1.9

5.1

5.6

2

3.6

4.9

5.4

ns

tPLZ

CE

A or B

1.9

4.9

5.1

2

3.5

4.7

4.9

ns

† All typical values are at VCC = 3.3 V, TA = 25°C.

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.