54AC16245, 74AC16245

16-BIT BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCAS235A – MARCH 1990 – REVISED APRIL 1996

3

POST OFFICE BOX 655303

–0.5 V to 7 V

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±20 mA

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±50 mA

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±50 mA

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±400 mA

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0.85 W

. . . . . . . . . . . . . . . .

DL package

1.2 W

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–65

°C to 150°C

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† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

2. The maximum package power dissipation is calculated using a junction temperature of 150

_C and a board trace length of 750 mils.

recommended operating conditions (see Note 3)

54AC16245

74AC16245

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage (see Note 4)

3

5

5.5

3

5

5.5

V

VCC = 3 V

2.1

2.1

VIH

High-level input voltage

VCC = 4.5 V

3.15

3.15

V

VCC = 5.5 V

3.85

3.85

VCC = 3 V

0.9

0.9

VIL

Low-level input voltage

VCC = 4.5 V

1.35

1.35

V

VCC = 5.5 V

1.65

1.65

VI

Input voltage

0

VCC

0

VCC

V

VO

Output voltage

0

VCC

0

VCC

V

VCC = 3 V

–4

–4

IOH

High-level output current

VCC = 4.5 V

–24

–24

mA

VCC = 5.5 V

–24

–24

VCC = 3 V

12

12

IOL

Low-level output current

VCC = 4.5 V

24

24

mA

VCC = 5.5 V

24

24

∆t/∆v

Input transition rise or fall rate

0

10

0

10

ns/V

TA

Operating free-air temperature

–55

125

–40

85

°C

NOTES:

3. All unused pins (input and I/O) must be held high or low to prevent them from floating.

4. All VCC and GND pins must be connected to the proper voltage power supply.

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.