SN74GTLPH16612

18-BIT LVTTL-TO-GTLP UNIVERSAL BUS TRANSCEIVER

SCES326 – MARCH 2000

8

POST OFFICE BOX 655303

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

MIN

MAX

UNIT

fclock

Clock frequency

85

MHz

t

Pulse duration

LEAB or LEBA high

3.3

ns

tw

Pulse duration

CLKAB or CLKBA high or low

5.7

ns

A before CLKAB

↑

1

B before CLKBA

↑

1.8

t

Setup time

A before LEAB

↓

0.5

ns

tsu

Setup time

B before LEBA

↓

1.2

ns

CEAB before CLKAB

↑

1.2

CEBA before CLKBA

↑

1.4

A after CLKAB

↑

1.9

B after CLKBA

↑

0.5

th

Hold time

A after LEAB

↓

2.7

ns

th

Hold time

B after LEBA

↓

3.5

ns

CEAB after CLKAB

↑

1.2

CEBA after CLKBA

↑

1.1

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

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

MIN

TYP†

MAX

UNIT

fmax

85

MHz

A

2.5

6.9

tpd

LEAB

B

3.2

7.3

ns

CLKAB

3.4

7.8

ten

OEAB

B

2.8

7

ns

tdis

OEAB

B

2.8

7

ns

tr

Transition time, B outputs (20% to 80%)

2.6

ns

tf

Transition time, B outputs (80% to 20%)

2.6

ns

B

1.5

5.7

tpd

LEBA

A

1.8

5.7

ns

CLKBA

2.3

5.5

ten

OEBA

A

1.8

6.1

ns

tdis

OEBA

A

1.8

6.1

ns

† All typical values are at VCC (3.3 V) = 3.3 V, VCC (5 V) = 5 V, TA = 25°C.