SN54LVT16500, SN74LVT16500

3.3-V ABT 18-BIT UNIVERSAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS146D – MAY 1992 – REVISED NOVEMBER 1996

2

POST OFFICE BOX 655303

description (continued)

Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, and CLKBA. The output enables are

complementary (OEAB is active high and OEBA is active low).

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

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

should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the

current-sourcing capability of the driver.

The SN74LVT16500 is available in TI’s shrink small-outline (DL) and thin shrink small-outline (DGG) packages,

which provide twice the I/O pin count and functionality of standard small-outline packages in the same printed

circuit board area.

The SN54LVT16500 is characterized for operation over the full military temperature range of –55

°C to 125°C.

The SN74LVT16500 is characterized for operation from –40

°C to 85°C.

FUNCTION TABLE†

INPUTS

OUTPUT

OEAB

LEAB

CLKAB

A

B

L

X

X

X

Z

H

HX

L

L

H

HX

H

H

H

L

↓

LL

H

L

↓

HH

H

LH

X

B0‡

H

L

L

X

B0§

† A-to-B data flow is shown: B-to-A flow is similar but

uses OEBA, LEBA, and CLKBA.

‡ Output level before the indicated steady-state input

conditions were established

§ Output level before the indicated steady-state input

conditions were established, provided that CLKAB

was low before LEAB went low