SN54LV240A Datasheet, PDF (2/15 Pages) Texas Instruments – OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SN54LV240A, SN74LV240A
OCTAL BUFFERS/DRIVERS
WITH 3ĆSTATE OUTPUTS
SCLS384H − SEPTEMBER 1997 − REVISED APRIL 2005
description/ordering information (continued)
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
FUNCTION TABLE
(each buffer)
INPUTS
OE
A
OUTPUT
Y
L
H
L
L
L
H
H
X
Z
logic diagram (positive logic)
1
1OE
19
2OE
2
1A1
18
1Y1
11
2A1
9
2Y1
1A2 ⁴
16 _1Y2
2A2 ¹³
7 _2Y2
6
1A3
14 _1Y3
15
2A3
5 _2Y3
8
1A4
12 _1Y4
17
2A4
3 _2Y4
2
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