74HC4051
※
※
※
Qualified for Automotive Applications
Wide Analog Input Voltage Range of
5
V Max
Low ON Resistance
70 Typical (V
CC
V
= 4.5 V)
EE
40 Typical (V
CC
V
EE
= 9 V)
Low Crosstalk Between Switches
Fast Switching and Propagation Speeds
Break-Before-Make Switching
Operation Control Voltage = 2 V to 6 V
Switch Voltage = 0 V to 10 V
High Noise Immunity N
IL
= 30%, N
IH
= 30%
of V
CC
, V
CC
= 5 V
※
※
※
※
※
※
M OR PW PACKAGE
(TOP VIEW)
CHANNEL I/O A4
CHANNEL I/O A6
COM OUT/IN A
CHANNEL I/O A7
CHANNEL I/O A5
E
V
EE
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
CHANNEL I/O A2
CHANNEL I/O A1
CHANNEL I/O A0
CHANNEL I/O A3
ADDRESS SEL S0
ADDRESS SEL S1
ADDRESS SEL S2
description
This device is a digitally controlled analog switch that
utilizes silicon-gate CMOS technology to achieve
operating speeds similar to LSTTL, with the low
power consumption of standard CMOS integrated
circuits.
This analog multiplexer/demultiplexer controls analog voltages that may vary across the voltage supply range
(i.e., V
CC
to V
EE
). These bidirectional switches allow any analog input to be used as an output and vice versa.
The switches have low ON resistance and low OFF leakages. In addition, the device has an enable control (E)
that, when high, disables all switches to their OFF state.
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2018 AUG
74HC4051
FUNCTION TABLE
INPUTS
E
L
L
L
L
L
L
L
L
H
X = Don't care
S
2
L
L
L
L
H
H
H
H
X
S
1
L
L
H
H
L
L
H
H
X
S
0
L
H
L
H
L
H
L
H
X
ON
CHANNEL(S)
A0
A1
A2
A3
A4
A5
A6
A7
None
logic diagram (positive logic)
CHANNEL I/O
VCC
16
A7
4
A6
2
A5
5
A4
1
A3
12
A2
15
A1
14
A0
13
TG
TG
S0
11
TG
S
1
10
Logic
Level
Conversion
9
S2
Binary
To
1 of 8
Decoder
With
Enable
TG
3
COM OUT/IN A
TG
TG
TG
E
6
TG
8
7
GND
VEE
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2018 AUG
74HC4051
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
V
EE
(see Note 1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.5
V to 10.5 V
.........................................................
Supply voltage range, V
CC
.
0.5
V to 7 V
........................................................
. +0.5 V to
7
V
Supply voltage range, V
EE
+ 0.5 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 mA
Input clamp current, I
IK
(V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .20 mA
Output clamp current, I
OK
(V
O
< V
EE
0.5 V or V
O
> V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 mA
Switch current (V
I
> V
EE
0.5 V or V
I
< V
CC
+ 0.5 V)
Continuous current through V
CC
or GND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . .50 mA
V
EE
current, I
EE
.......................................................................
. .
20
mA
Package thermal impedance,
JA
(see Note 2):
M package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108C/W
Maximum junction temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50C
Lead temperature (during soldering):
At distance 1/16 1/32 inch (1.59 0.79 mm) from case for 10 s max . . . . . . . . . . . . . . . . . . . . . . .
300C
Storage temperature range, T
stg
†
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
65C
to 150C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1.
All voltages referenced to GND unless otherwise specified.
2.
The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
MIN
V
CC
V
EE
Supply voltage (see Note 4)
Supply voltage, V
CC
V
EE
(see Figure 1)
2
2
0
V
CC
= 2 V
V
IH
High-level input voltage
High level
V
CC
= 4.5 V
V
CC
= 6 V
V
CC
=
V
IL
V
I
V
IS
Low-level input voltage
Low level
Input control voltage
Analog switch I/O voltage
V
CC
= 2 V
t
t
T
A
NOTES:
Input transition (rise and fall) time
V
CC
= 4.5 V
V
CC
= 6 V
Operating free-air temperature
3.
4.
2V
V
CC
= 4.5 V
V
CC
= 6 V
0
V
EE
0
0
0
40
1.5
3.15
4.2
0.5
1.35
1.8
V
CC
V
CC
1000
500
400
125
C
ns
V
V
V
V
MAX
6
10
6
UNIT
V
V
V
Supply voltage, (see Note 4 and Figure 2)
All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs,
literature number SCBA004.
In certain applications, the external load resistor current may include both V
CC
and signal-line components. To avoid drawing V
CC
current when switch current flows into the transmission gate inputs, the voltage drop across the bidirectional switch must not exceed
0.6 V (calculated from r
on
values shown in electrical characteristics table). No V
CC
current flows through R
L
if the switch current flows
into the COM OUT/IN A terminal.
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2018 AUG
74HC4051
recommended operating area as a function of supply voltages
8
GND)
V
CC
8
6
HCT
4
HC
GND)
V
CC
6
HCT
4
HC
(V
0
0
2
4
6
8
10
12
(V
2
2
0
0
2
4
6
8
(V
CC
V )
V
EE
(V
EE
GND)
V
Figure 1
Figure 2
electrical characteristics
otherwise noted)
PARAMETER
over
recommended
operating
free-air
temperature
range
T
A
=
40C
TO 125C
(unless
TEST CONDITIONS
V
EE
0V
V
CC
MIN
4.5 V
6V
4.5 V
4.5 V
6V
4.5 V
4.5 V
6V
4.5 V
T
A
= 25C
TYP
70
60
40
90
80
45
10
8.5
5
0.2
MAX
160
140
120
180
160
130
UNIT
MIN
MAX
240
210
180
270
240
195
Ron
I
O
= 1 mA,
V
I
= V
IH
or V
IL
,
See Figure
8
V
IS
= V
CC
or V
EE
0V
4.5
V
0V
V
IS
= V
CC
to V
EE
0V
4.5
V
0V
∆
Ron
Between any two channels
0V
4.5
V
IIZ
For switch OFF:
When V
IS
= V
CC
, V
OS
= V
EE
;
When V
IS
= V
EE
, V
OS
= V
CC
For switch ON:
All applicable combinations of V
IS
and V
OS
voltage levels,
V
I
= V
IH
or V
IL
0V
6V
2
A
5
V
0V
5V
0.4
0.1
8
4
1
160
A
A
IIL
ICC
V
I
= V
CC
or GND
I
O
= 0,
V
I
0,
or GND
= V
CC
When V
IS
= V
EE
,
V
OS
= V
CC
When V
IS
= V
CC
,
V
OS
= V
EE
6V
6V
5V
0V
5
V
16
320
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2018 AUG
74HC4051
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figure 7)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
C
L
= 15 pF
V
EE
V
T
A
= 25C
CC
T
A
=
40C
TO 125C
MAX
MIN
MAX
60
12
10
8
90
18
15
12
UNIT
ns
MIN
TYP
4
5V
2V
tpdpd
IN
OUT
C
L
= 50 pF
0V
4.5 V
6V
ns
4.5
V
C
L
= 15 pF
ADDRESS SEL
or E
4.5 V
5V
2V
19
225
45
38
32
19
225
45
38
32
10
340
68
57
48
ns
ten
OUT
C
L
= 50 pF
0V
4.5 V
6V
4.5
V
C
L
= 15 pF
4.5 V
5V
2V
340
68
57
48
10
pF
ns
tdis
ADDRESS SEL
or E
OUT
C
L
= 50 pF
0V
4.5 V
6V
4.5
V
C
I
Control
C
L
= 50 pF
4.5 V
operating characteristics, V
CC
= 5 V, T
A
= 25C, Input t
r
, t
f
= 6 ns
PARAMETER
C
pd
NOTE 5:
Power dissipation capacitance (see Note 5)
C
pd
is used to determine the dynamic power consumption, per package.
2
f
P
D
= C
pd
V
CC 2
f
I
+ (C
L
+ C
S
)
O
V
CC
f
O
= output frequency
f
I
= input frequency
C
L
= output load capacitance
C = switch capacitance
V
CC
= supply voltage
S
TYP
50
UNIT
pF
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5
2018 AUG
电子工程世界
FPGA/CPLD
