Philips Semiconductors

Product specification

74ALVCH16501

18-bit universal bus transceiver (3-State)

1998 Sep 29

5

FUNCTION TABLE

INPUTS

OUTPUTS

OPERATING MODE

OEAB

LEAB

CPAB

An

Bn

L

X

X

X

Z

Disabled

H

H

X

H

H

Transparent

H

H

X

L

L

Trans arent

H

↓

X

h

H

Latch data & display

H

↓

X

I

L

Latch data & dis lay

H

L

↑

h

H

Clock data & display

H

L

↑

I

L

Clock data & dis lay

H

L

H or L

X

H

Hold data & display

H

L

H or L

X

L

Hold data & dis lay

NOTE: A-to-B data flow is shown; B-to-A flow is similar but uses OEBA, LEBA, and CPBA.

H = High voltage level

h

= High voltage level one set-up time prior to the Enable or Clock transition

L

= Low voltage level

I

= Low voltage level one set-up time prior to the Enable or Clock transition

NC= No Change

X = Don’t care

Z = High Impedance ”off” state

↓ = High-to-Low Enable or Clock transition

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

CONDITIONS

LIMITS

UNIT

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

DC supply voltage 2.5V range (for max. speed

performance @ 30 pF output load)

2.3

2.7

V

DC supply voltage 3.3V range (for max. speed

performance @ 50 pF output load)

3.0

3.6

V

DC Input voltage range

0

V

DC output voltage range

0

V

Operating free-air temperature range

–40

+85

°C

Input rise and fall times

0

0

20

10

ns/V

ABSOLUTE MAXIMUM RATINGS

In accordance with the Absolute Maximum Rating System (IEC 134)

Voltages are referenced to GND (ground = 0V)

SYMBOL

PARAMETER

CONDITIONS

RATING

UNIT

DC supply voltage

–0.5 to +4.6

V

DC input diode current

–50

mA

DC input voltage

–0.5 to +4.6

V

DC in ut voltage

V

DC output diode current

"50

mA

DC output voltage

Note 1

V

DC output source or sink current

"50

mA

"100

mA

Storage temperature range

–65 to +150

°C

Power dissipation per package

–plastic thin-medium-shrink (TSSOP)

For temperature range: –40 to +125

°C

above +55

°C derate linearly with 8 mW/K

600

mW

NOTE:

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