74lv240db NXP Semiconductors, 74lv240db Datasheet - Page 3

• Manufacturer Part Number: 74lv240db
• Description: Octal Buffer/line Driver; Inverting 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PIN DESCRIPTION
LOGIC SYMBOL (IEEE/IEC)
1998 May 20
1
2, 4, 6, 8
3, 5, 7, 9
10
17, 15, 13, 11
18, 16, 14, 12
19
20
Octal buffer/line driver; inverting (3-State)
NUMBER
PIN
1OE
1A
2Y
GND
2A
1Y
2OE
V
SYMBOL
CC
0
0
0
0
1
2
4
6
8
19
11
13
15
17
to 1A
to 2Y
to 2A
to 1Y
3
3
3
3
EN
EN
Output enable input (active LOW)
Data inputs
Bus outputs
Ground (0 V)
Data inputs
Bus outputs
Output enable input (active LOW)
Positive supply voltage
SV00611
FUNCTION
18
16
14
12
9
7
5
3
3
H =
L =
X =
Z =
FUNCTIONAL DIAGRAM
FUNCTION TABLE
NOTES:
HIGH voltage level
LOW voltage level
don’t care
high impedance OFF-state
nOE
H
L
L
INPUTS
17
15
13
11
19
2
4
6
8
1
1A 0
1A 1
1A 2
1A 3
1OE
2A 0
2A 1
2A 2
2A 3
2OE
nA
H
X
L
n
SV00610
1Y 0 18
1Y 1 16
1Y 2 14
1Y 3 12
2Y 0 3
2Y 1 5
2Y 2 7
2Y 3 9
Product specification
74LV240
OUTPUT
nY
H
L
Z
n