SN74ALVCH162831

1-BIT TO 4-BIT ADDRESS REGISTER/DRIVER

WITH 3-STATE OUTPUTS

SCES084F – AUGUST 1996 – REVISED JUNE 1999

2

POST OFFICE BOX 655303

description (continued)

SEL and OE do not affect the internal operation of the flip-flops. Old data can be retained or new data can be

entered while the outputs are in the high-impedance state.

The outputs, which are designed to sink up to 12 mA, include equivalent 26-

Ω resistors to reduce overshoot

and undershoot.

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

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

The SN74ALVCH162831 is characterized for operation from –40

°C to 85°C.

FUNCTION TABLE

INPUTS

OUTPUT

OE

SEL

CLK

A

Y

H

X

X

X

Z

L

HX

L

L

L

HX

H

H

L

L

↑

LL

L

L

↑

H

H

logic diagram (positive logic)

20

21

19

8

CLK

D

Q

22

To Eight Other Channels

5

4

2

1

OE1

OE2

CLK

A1

SEL

1Y1

2Y1

3Y1

4Y1