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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

To Eight Other Channels

1D

1Q

CLKEN

CLK

OE

CLR

1

11

14

13

2

R

1D

C1

23

SN74LVC823A

9-BIT BUS-INTERFACE FLIP-FLOP

WITH 3-STATE OUTPUTS

SCAS305I – MARCH 1993 – REVISED FEBRUARY 2005

A buffered output-enable (OE) input can be used to place the nine outputs in either a normal logic state (high or

low logic levels) or the high-impedance state. OE does not affect the internal operations of the latch. Previously

stored data can be retained or new data can be entered while the outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators

in a mixed 3.3-V/5-V system environment.

preventing damaging current backflow through the device when it is powered down.

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

FUNCTION TABLE

(EACH FLIP-FLOP)

INPUTS

OUTPUT

Q

OE

CLR

CLKEN

CLK

D

L

L

X

X

X

L

L

H

L

↑

H

H

L

H

L

↑

L

L

L

H

H

X

X

H

X

X

X

X

Z

LOGIC DIAGRAM (POSITIVE LOGIC)

2