SN54ALVTH16821, SN74ALVTH16821

2.5-V/3.3-V 20-BIT BUS-INTERFACE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCES078E – JULY 1996 – REVISED JANUARY 1999

5

POST OFFICE BOX 655303

SN54ALVTH16821

SN74ALVTH16821

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

VCC

Supply voltage

3

3.6

3

3.6

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.8

0.8

V

VI

Input voltage

0

VCC

5.5

0

VCC

5.5

V

IOH

High-level output current

–24

–32

mA

IOL

Low-level output current

24

32

mA

IOL

Low-level output current; current duty cycle

≤ 50%; f ≥ 1 kHz

48

64

mA

∆t/∆v

Input transition rise or fall rate

Outputs enabled

10

10

ns/V

∆t/∆VCC

Power-up ramp rate

200

200

µs/V

TA

Operating free-air temperature

–55

125

–40

85

°C

NOTE 3: All unused control inputs 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.