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A-Port

Parity

Generate

and

Check

B Data

B-Port

Parity

Generate

and

Check

A Data

18-Bit

Storage

18-Bit

Storage

18

18

18

18

2

2

LEAB

1CLKENAB

2CLKENAB

CLKAB

OEAB

1A1-1A8

1APAR

1ERRB

2A1-2A8

2APAR

2ERRB

ODD/EVEN

SEL

OEBA

1B1-1B8

1BPAR

1ERRA

2B1-2B8

2BPAR

2ERRA

1CLKENBA

2CLKENBA

CLKBA

LEBA

Absolute Maximum Ratings

(1)

SN74LVCH16901

18-BIT UNIVERSAL BUS TRANSCEIVER

WITH PARITY GENERATORS/CHECKERS

SCES145C – OCTOBER 1998 – REVISED JUNE 2005

FUNCTIONAL BLOCK DIAGRAM

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Supply voltage range

–0.5

6.5

V

–0.5

6.5

V

–0.5

6.5

V

–0.5

V

Input clamp current

–50

mA

Output clamp current

–50

mA

Continuous output current

±50

mA

±100

mA

θ

JA

55

°C/W

Storage temperature range

–65

150

°C

(1)

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.

(3)

(4)

The package thermal impedance is calculated in accordance with JESD 51-7.

4

Not Recommended For New Designs