SN54ABT620, SN74ABT620

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS113D – FEBRUARY 1991 – REVISED APRIL 1998

3

POST OFFICE BOX 655303

recommended operating conditions (see Note 3)

SN54ABT620

SN74ABT620

UNIT

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

4.5

5.5

4.5

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

IOH

High-level output current

–24

–32

mA

IOL

Low-level output current

48

64

mA

∆t/∆v

Input transition rise or fall rate

Outputs enabled

5

5

ns/V

TA

Operating free-air temperature

–55

125

–40

85

°C

NOTE 3: All unused pins (control or I/O) of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application

report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

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.