SN54ALVTH162827, SN74ALVTH162827

2.5-V/3.3-V 20-BIT BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCES079E – JULY 1996 – REVISED DECEMBER 1998

2

POST OFFICE BOX 655303

description (continued)

The devices are composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer

section, the two output-enable (1OE1 and 1OE2, or 2OE1 and 2OE2) inputs must be low for the corresponding

Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer section are in the

high-impedance state.

the minimum value of the resistor is determined by the current-sinking capability of the driver.

All outputs are designed to sink up to 12 mA, and include equivalent 30-

Ω resistors to reduce overshoot and

undershoot.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN54ALVTH162827 is characterized for operation over the full military temperature range of –55

°C to

125

°C. The SN74ALVTH162827 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each 10-bit section)

INPUTS

OUTPUT

OE1

OE2

A

Y

L

L

L

L

L

LH

H

H

XX

Z

X

H

X

Z

logic diagram (positive logic)

1Y1

2

1

55

1OE1

1OE2

56

2Y1

15

28

42

29

2OE1

2OE2

To Nine Other Channels

To Nine Other Channels

1A1

2A1