CD4051B-Q1_15 Datasheet, PDF (15/24 Pages) Texas Instruments – CMOS ANALOG MULTIPLEXERS/DEMULTIPLEXERS

CD4051B-Q1, CD4052B-Q1, CD4053B-Q1
CMOS ANALOG MULTIPLEXERS/DEMULTIPLEXERS
WITH LOGIC−LEVEL CONVERSION
SCHS354A − AUGUST 2004 − REVISED JANUARY 2008
APPLICATION INFORMATION
In applications where separate power sources drive V_DD and the signal inputs, the V_DD current capability should
exceed V_DD/R_L (R_L = effective external load). This provision avoids permanent current flow or clamp action on the
V_DD supply when power is applied or removed from the CD4051B, CD4052B, or CD4053B.
A
B
C
D
A
Q0
E
B
1/2 Q1
CD4556
E
Q2
A
B
C
CD4051B
INH
A
B
C ^CD4051B
INH
Common
Output
A
B
C
CD4051B
INH
Figure 24. 24-to-1 Multiplexer Addressing
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15