Datasheet

SN74AHC244-EP
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCLS486A – MAY 2003 – REVISED JUNE 2003
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
FUNCTION TABLE
(each 4-bit buffer/driver)
INPUTS
OUTPUT
OE A
Y
L H H
L LL
H X Z
logic symbol
†
2
1A1
4
1A2
6
1A3
8
1A4
EN
1
1Y1
18
1Y2
16
1Y3
14
1Y4
12
11
2A1
13
2A2
15
2A3
17
2A4
EN
19
2Y1
9
2Y2
7
2Y3
5
2Y4
3
1OE
2OE
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
1
218
1Y1
1OE
1A1
416
1Y2
1A2
614
1Y3
1A3
812
1Y4
1A4
19
11 9
2Y1
2OE
2A1
13 7
2Y2
2A2
15 5
2Y3
2A3
17 3
2Y4
2A4