74ACT11643

OCTAL BUS TRANSCEIVER

WITH 3STATE OUTPUTS

SCAS051A − D2957, JULY 1987 − REVISED APRIL 1993

POST OFFICE BOX 655303

3

recommended operating conditions

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VI

Input voltage

0

VCC

V

VO

Output voltage

0

VCC

V

IOH

High-level output current

−24

mA

IOL

Low-level output current

24

mA

Dt/Dv

Input transition rise or fall rate

0

10

ns/V

TA

Operating free-air temperature

−40

85

°C

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

MIN

MAX

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

MAX

UNIT

IOH = − 50 A

4.5 V

4.4

4.4

IOH = − 50 mA

5.5 V

5.4

5.4

VOH

IOH = − 24 mA

4.5 V

3.94

3.8

V

VOH

IOH = − 24 mA

5.5 V

4.94

4.8

V

IOH = − 75 mA†

5.5 V

3.85

IOL = 50 A

4.5 V

0.1

0.1

IOL = 50 mA

5.5 V

0.1

0.1

VOL

IOL = 24 mA

4.5 V

0.36

0.44

V

VOL

IOL = 24 mA

5.5 V

0.36

0.44

V

IOL = 75 mA†

5.5 V

1.65

IOZ

A or B ports‡

VO = VCC or GND

5.5 V

± 0.5

± 5

mA

II

G or DIR

VI = VCC or GND

5.5 V

± 0.1

± 1

mA

ICC

VI = VCC or GND,

IO = 0

5.5 V

8

80

mA

DICC§

One input at 3.4 V,

5.5 V

0.9

1

mA

DICC§

One input at 3.4 V,

Other inputs at GND or VCC

5.5 V

0.9

1mA

Ci

G or DIR

VI = VCC or GND

5 V

4

pF

Co

A or B ports

VO = VCC or GND

5 V

12

pF

† Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.

‡ For I/O ports, the parameter IOZ includes the input leakage.

§ This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.

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

temperature (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

TA = 25°C

MIN

MAX

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

UNIT

tPLH

A or B

B or A

1.5

5.6

8.3

1.5

9.3

ns

tPHL

A or B

B or A

1.5

5.7

7.7

1.5

8.8

ns

tPZH

G

A or B

1.5

8.1

11.5

1.5

12.9

ns

tPZL

G

A or B

1.5

7.7

10.1

1.5

11.4

ns

tPHZ

G

A or B

1.5

9.1

12

1.5

13.1

ns

tPLZ

G

A or B

1.5

9.3

11.6

1.5

12.7

ns