SN54ABTH162260, SN74ABTH162260

12-BIT TO 24-BIT MULTIPLEXED D-TYPE LATCHES

WITH SERIES-DAMPING RESISTORS AND 3-STATE OUTPUTS

SCBS240D – JUNE 1992 – REVISED MAY 1997

2

POST OFFICE BOX 655303

description (continued)

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

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

The SN54ABTH162260 is characterized for operation over the full military temperature range of –55

°C to

125

°C. The SN74ABTH162260 is characterized for operation from –40°C to 85°C.

Function Tables

B TO A (OEB = H)

INPUTS

OUTPUT

1B

2B

SEL

LE1B

LE2B

OEA

A

H

X

H

H

X

L

H

L

XH

HX

L

L

X

XH

L

X

L

A0

X

HL

X

H

L

H

X

LL

X

H

L

L

X

XL

XL

L

A0

X

X

X

X

X

H

Z

A TO B (OEA = H)

INPUTS

OUTPUTS

A

LEA1B

LEA2B

OE1B

OE2B

1B

2B

H

H

H

L

L

H

H

L

HH

L

L

L

L

H

HL

L

L

H

2B0

L

HL

L

L

L

2B0

H

LH

L

L

1B0

H

L

LH

L

L

1B0

L

X

LL

L

L

1B0

2B0

X

XX

H

H

Z

Z

X

X

X

L

H

Active

Z

X

XX

H

L

Z

Active

X

X

X

L

L

Active

Active