tc74vhc540f TOSHIBA Semiconductor CORPORATION, tc74vhc540f Datasheet - Page 2

• Manufacturer Part Number: tc74vhc540f
• Description: Octal Bus Buffer
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin Assignment
IEC Logic Symbol
Truth Table
X: Don’t care
Z: High impedance
Y
Y : TC74VHC540
n
G
H
X
L
L
n
G
G
: TC74VHC541
A1
A2
A3
A4
A5
A6
A7
A8
1
1
2
GND 10
G
A1
A2
A3
A4
A5
A6
A7
A8
Inputs
1
(19)
G
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
H
X
L
L
2
1
2
3
4
5
6
7
8
9
A
X
X
H
L
TC74VHC540
n
&
TC74VHC540
(top view)
EN
Y
H
Z
Z
L
Outputs
n
Y
H
Z
Z
L
n
(18)
(17)
(16)
(15)
(14)
(13)
(12)
(11)
20
19
18
17
16
15
14
13
12
11
Y
Y
Y
Y
Y
Y
Y
Y
1
V
2
3
5
6
7
8
4
G
Y
Y
Y
Y
Y
Y
Y
Y
CC
1
8
2
3
5
6
7
2
4
2
G
G
A1
A2
A3
A4
A5
A6
A7
A8
2
1
GND 10
(19)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
G
A1
A2
A3
A4
A5
A6
A7
A8
1
TC74VHC540,541F/FT/FK
1
2
3
4
5
6
7
8
9
TC74VHC541
&
TC74VHC541
EN
(top view)
(18)
(17)
(16)
(15)
(14)
(13)
(12)
(11)
2007-10-01
20
19
18
17
16
15
14
13
12
11
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
V
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
G
CC
2