Datasheet

3
Functional Diagram
CD74HC4352
TG
4
A COMMON
OUT/IN
16181915
A
3
A
2
A
1
A
0
BINARY
TO
1 OF 4
DECODER
WITH
ENABLE
13
12
8E2
S1
S0
10 9
GND V
EE
20
V
CC
A CHANNELS IN/OUT
TG
LATCHES
7E1
11LE
LOGIC
LEVEL
CONVERSION
S0
S0
S1
S1
17
B COMMON
OUT/IN
TG
TG
TG
TG
TG
TG
1625
B
3
B
2
B
1
B
0
B CHANNELS IN/OUT
TRUTH TABLE
CD74HC4352
INPUT STATES (NOTE 2)
“ON”
SWITCHES
LE = HE1 E2 S1 S0
LHLLA
0
, B
0
LHLHA
1
, B
1
LHHLA
2
, B
2
LHHHA
3
, B
3
H L X X None
H = High Voltage Level, L = Low Voltage Level, X = Don’t Care
NOTE:
2. When Latch Enable is “Low” channel-select data is latched and
switches cannot change state.
FIGURE 2. DETAIL OF ONE CD74HC4352 SWITCH
An (Bn)
IN/OUT
P
A COMMON (B COMMON) IN/OUT
P
N
N
N
N
V
CC
V
CC
V
EE
FROM
SELECT
LOGIC
CD54HC4351, CD74HC4351, CD74HCT4351, CD74HC4352