INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
•
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
•
The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
•
The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT4352
Dual 4-channel analog
multiplexer/demultiplexer with latch
Product specification
File under Integrated Circuits, IC06
December 1990
Philips Semiconductors
Product specification
Dual 4-channel analog
multiplexer/demultiplexer with latch
FEATURES
•
Wide analog input voltage range:
±
5 V.
•
Low “ON” resistance:
80
Ω
(typ.) at V
CC
−
V
EE
= 4.5 V
70
Ω
(typ.) at V
CC
−
V
EE
= 6.0 V
60
Ω
(typ.) at V
CC
−
V
EE
= 9.0 V
•
Logic level translation:
to enable 5 V logic to communicate with
±
5 V analog
signals
•
Typical “break before make” built in
•
Address latches provided
•
Output capability: non-standard
•
I
CC
category: MSI
GENERAL DESCRIPTION
The 74HC/HCT4352 are high-speed Si-gate CMOS
devices. They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT4352 are dual 4-channel analog
multiplexers/demultiplexers with common select logic.
74HC/HCT4352
Each multiplexer has four independent inputs/outputs
(nY
0
to nY
3
) and a common input/output (nZ).
The common channel select logics include two select
inputs (S
0
and S
1
), an active LOW enable input (E
1
), an
active HIGH enable input (E
2
) and a latch enable input
(LE).
With E
1
LOW and E
2
HIGH, one of the four switches is
selected (low impedance ON-state) by S
0
and S
1
. The data
at the select inputs may be latched by using the active
LOW latch enable input (LE). When LE is HIGH, the latch
is transparent. When either of the two enable inputs, E
1
(active LOW) and E
2
(active HIGH), is inactive, all analog
switches are turned off.
V
CC
and GND are the supply voltage pins for the digital
control inputs (S
0
, S
1
, LE, E
1
and E
2
). The V
CC
to GND
ranges are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT.
The analog inputs/outputs (nY
0
to nY
3
, and nZ) can swing
between V
CC
as a positive limit and V
EE
as a negative limit.
V
CC
−
V
EE
may not exceed 10.0 V.
For operation as a digital multiplexer/demultiplexer, V
EE
is
connected to GND (typically ground).
QUICK REFERENCE DATA
V
EE
= GND = 0 V; T
amb
= 25
°C;
t
r
= t
f
= 6 ns
TYPICAL
SYMBOL
t
PZH
/ t
PZL
t
PHZ
/ t
PLZ
C
I
C
PD
C
S
PARAMETER
turn “ON” time E
1
, E
2
or S
n
to V
os
turn “OFF” time E
1
, E
2
or S
n
to V
os
input capacitance
power dissipation capacitance per switch
max. switch capacitance
independent (Y)
common (Z)
Notes
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
µW):
P
D
= C
PD
×
V
CC2
×
f
i
+ ∑ {
(C
L
+
C
S
) ×
V
CC2
×
f
o
} where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
∑
{ (C
L
+
C
S
) ×
V
CC2
×
f
o
} = sum of outputs
C
L
= output load capacitance in pF
C
S
= max. switch capacitance in pF
V
CC
= supply voltage in V
2. For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
−
1.5 V
December 1990
2
5
12
5
12
pF
pF
notes 1 and 2
CONDITIONS
HC
C
L
= 15 pF; R
L
= 1 kΩ;
V
CC
= 5 V
31
20
3.5
55
HCT
33
20
3.5
55
ns
ns
pF
pF
UNIT
Philips Semiconductors
Product specification
Dual 4-channel analog
multiplexer/demultiplexer with latch
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
PIN DESCRIPTION
PIN NO.
1, 6, 2, 5
3, 14
7
8
9
10
11
13, 12
16, 18, 19, 15
17, 4
20
SYMBOL
2Y
0
to 2Y
3
n.c.
E
1
E
2
V
EE
GND
LE
S
0
, S
1
1Y
0
to 1Y
3
1Z, 2Z
V
CC
NAME AND FUNCTION
independent inputs/outputs
not connected
enable input (active LOW)
enable input (active HIGH)
negative supply voltage
ground (0 V)
latch enable input (active LOW)
select inputs
independent inputs/outputs
common inputs/outputs
positive supply voltage
74HC/HCT4352
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
Philips Semiconductors
Product specification
Dual 4-channel analog
multiplexer/demultiplexer with latch
FUNCTION TABLE
INPUTS
CHANNEL ON
E
1
H
X
L
L
L
L
L
X
Notes
1. Last selected channel “ON”.
2. Selected channels latched.
H = HIGH voltage level
L = LOW voltage level
X = don’t care
↓
= HIGH-to-LOW LE transition
APPLICATIONS
•
Analog multiplexing and demultiplexing
•
Digital multiplexing and demultiplexing
•
Signal gating
X
L
H
H
H
H
H
X
E
2
LE
X
X
H
H
H
H
L
↓
S
1
X
X
L
L
H
H
X
X
S
0
X
X
L
H
L
H
X
X
none
none
nY
0
nY
1
nY
2
nY
3
(1)
(2)
74HC/HCT4352
−
nZ
−
nZ
−
nZ
−
nZ
Fig.4 Functional diagram.
Fig.5 Schematic diagram (one switch).
December 1990
4
Philips Semiconductors
Product specification
Dual 4-channel analog
multiplexer/demultiplexer with latch
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Voltages are referenced to V
EE
= GND (ground = 0 V)
SYMBOL
V
CC
±I
IK
±I
SK
±I
S
±I
EE
±I
CC
;
±I
GND
T
stg
P
tot
PARAMETER
DC supply voltage
DC digital input diode current
DC switch diode current
DC switch current
DC V
EE
current
DC V
CC
or GND current
storage temperature range
power dissipation per package
plastic DIL
plastic mini-pack (SO)
P
S
Note
power dissipation per switch
750
500
100
mW
mW
mW
−65
MIN.
−0.5
MAX. UNIT
+11.0
V
20
20
25
20
50
+150
mA
mA
mA
mA
mA
°C
74HC/HCT4352
CONDITIONS
for V
I
<
−0.5
V or V
I
> V
CC
+
0.5 V
for V
S
<
−0.5
V or V
S
> V
CC
+
0.5 V
for
−0.5
V < V
S
< V
CC
+ 0.5 V
for temperature range:
−40
to +125
°C
74HC/HCT
above
+70 °C:
derate linearly with 12 mW/K
above
+70 °C:
derate linearly with 6 mW/K
1. To avoid drawing V
CC
current out of terminals nZ, when switch current flows in terminals nY
n
, the voltage drop across
the bidirectional switch must not exceed 0.4 V. If the switch current flows into terminals nZ, no V
CC
current will flow
out of terminals nY
n
. In this case there is no limit for the voltage drop across the switch, but the voltages at nY
n
and
nZ may not exceed V
CC
or V
EE
.
RECOMMENDED OPERATING CONDITIONS
74HC
SYMBOL
74HCT
UNIT
PARAMETER
min.
typ.
max.
min.
typ.
max.
CONDITIONS
see Figs 6 and 7
see Figs 6 and 7
V
CC
V
CC
V
I
V
S
T
amb
T
amb
t
r
, t
f
DC supply voltage V
CC
−GND
DC supply voltage V
CC
−V
EE
DC input voltage range
DC switch voltage range
2.0
2.0
GND
V
EE
5.0
5.0
10.0
10.0
V
CC
V
CC
+85
+125
1000
500
400
250
4.5
2.0
GND
V
EE
−40
−40
5.0 5.5
5.0 10.0
V
CC
V
CC
+85
+125
6.0 500
V
V
V
V
°C
°C
ns
operating ambient temperature range
−40
operating ambient temperature range
−40
input rise and fall times
6.0
see DC and AC
CHARACTERISTICS
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
CC
= 10.0 V
December 1990
5
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