54ACT11640, 74ACT11640

OCTAL BUS TRANSCEIVERS

WITH 3STATE OUTPUTS

SCAS027A − D2957, JULY 1987 − REVISED APRIL 1993

POST OFFICE BOX 655303

POST OFFICE BOX 1443

2−3

recommended operating conditions

54ACT11640

74ACT11640

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

4.5

5

5.5

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.8

0.8

V

VI

Input voltage

0

VCC

0

VCC

V

VO

Output voltage

0

VCC

0

VCC

V

IOH

High-level output current

−24

−24

mA

IOL

Low-level output current

24

24

mA

Dt/Dv

Input transition rise or fall rate

0

10

0

10

ns/ V

TA

Operating free-air temperature

−55

125

−40

85

°C

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

54ACT11640

74ACT11640

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

IOH = − 50 A

4.5 V

4.4

4.4

4.4

IOH = − 50 mA

5.5 V

5.4

5.4

5.4

VOH

IOH = − 24 mA

4.5 V

3.94

3.7

3.8

V

VOH

IOH = − 24 mA

5.5 V

4.94

4.7

4.8

V

IOH = − 50 mA†

5.5 V

3.85

IOH = − 75 mA†

5.5 V

3.85

IOL = 50 A

4.5 V

0.1

0.1

0.1

IOL = 50 mA

5.5 V

0.1

0.1

0.1

VOL

IOL = 24 mA

4.5 V

0.36

0.5

0.44

V

VOL

IOL = 24 mA

5.5 V

0.36

0.5

0.44

V

IOL = 50 mA†

5.5 V

1.65

IOL = 75 mA†

5.5 V

1.65

IOZ

A or B ports‡

VO = VCC or GND

5.5 V

± 0.5

± 10

± 5

mA

II

G or DIR

VI = VCC or GND

5.5 V

± 0.1

± 1

± 1

mA

ICC

VI = VCC or GND,

IO = 0

5.5 V

8

160

80

mA

DICC§

One input at 3.4 V,

Other inputs at GND or VCC

5.5 V

0.9

1

1

mA

Ci

G or DIR

VI = VCC or GND

5 V

4

pF

Cio

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.