MC74VHC4051 Datasheet, PDF (12/16 Pages) ON Semiconductor – Analog Multiplexers/Demultiplexers

MC74VHC4051, MC74VHC4052, MC74VHC4053
+5V
+5V
ANALOG
16
ANALOG
+5V
ON
–5V
SIGNAL
SIGNAL
–5V
6
11
TO EXTERNAL CMOS
7
10
CIRCUITRY 0 to 5V
8
9
DIGITAL SIGNALS
–5V
Figure 14. Application Example
VCC
VCC ^VCC
Dx
16 ^Dx
ON/OFF
Dx
Dx
VEE
VEE
7
8
VEE
Figure 15. External Germanium or
Schottky Clipping Diodes
+5V
+5V
+5V
ANALOG
16
ANALOG
+5V
+5V
ANALOG
16
ANALOG
+5V
ON/OFF
ON/OFF
VEE
SIGNAL
SIGNAL
+5V
VEE
VEE
SIGNAL
SIGNAL
VEE
*
RRR
+5V
6
11
7
10
8
9
LSTTL/NMOS
CIRCUITRY
VEE
* 2K ≤ R ≤ 10K
a. Using Pull–Up Resistors
6
11
7
10
8
9
VEE
HCT
BUFFER
b. Using HCT Interface
LSTTL/NMOS
CIRCUITRY
Figure 16. Interfacing LSTTL/NMOS to CMOS Inputs
11
A
LEVEL
SHIFTER
13
X0
14
X1
10
B
LEVEL
SHIFTER
15
X2
12
X3
9
C
LEVEL
SHIFTER
1
X4
5
X5
6
ENABLE
LEVEL
SHIFTER
2
X6
4
X7
3
X
Figure 18. Function Diagram, VHC4051
http://onsemi.com
12