74HC2G66; 74HCT2G66
Dual single-pole single-throw analog switch
Rev. 10 — 3 October 2013
Product data sheet
1. General description
The 74HC2G66; 74HCT2G66 is a dual single pole, single-throw analog switch. Each
switch has two input/output terminals (nY and nZ) and a digital enable input (nE). When
nE is LOW, the analog switch is turned off. Inputs include clamp diodes. This enables the
use of current limiting resistors to interface inputs to voltages in excess of V
CC
.
2. Features and benefits
Wide supply voltage range from 2.0 V to 10.0 V for 74HC2G66
Very low ON resistance:
41
(typ.) at V
CC
= 4.5 V
30
(typ.) at V
CC
= 6.0 V
21
(typ.) at V
CC
= 9.0 V
High noise immunity
Low power dissipation
25 mA continuous switch current
Multiple package options
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Specified from
40 C
to +85
C
and
40 C
to +125
C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range
74HC2G66DP
74HCT2G66DP
74HC2G66DC
74HCT2G66DC
74HC2G66GT
74HCT2G66GT
74HC2G66GD
74HCT2G66GD
40 C
to +125
C
XSON8
40 C
to +125
C
XSON8
40 C
to +125
C
VSSOP8
40 C
to +125
C
Name
TSSOP8
Description
plastic thin shrink small outline package; 8
leads; body width 3 mm; lead length 0.5 mm
Version
SOT505-2
Type number
plastic very thin shrink small outline package; 8 SOT765-1
leads; body width 2.3 mm
plastic extremely thin small outline package;
no leads; 8 terminals; body 1
1.95
0.5 mm
plastic extremely thin small outline package;
no leads; 8 terminals; body 3
2
0.5 mm
SOT833-1
SOT996-2
NXP Semiconductors
74HC2G66; 74HCT2G66
Dual single-pole single-throw analog switch
4. Marking
Table 2.
Marking codes
Marking
[1]
H66
T66
H66
T66
H66
T66
H66
T66
Type number
74HC2G66DP
74HCT2G66DP
74HC2G66DC
74HCT2G66DC
74HC2G66GT
74HCT2G66GT
74HC2G66GD
74HCT2G66GD
[1]
The pin 1 indicator is located on the lower left corner of the device, below the marking code.
5. Functional diagram
V
I
1Y
1Z
nY or nZ
input
GND
V
M
V
M
1E
t
PLH
t
PHL
2Z
2Y
nZ or nY
output
V
OH
V
M
V
OL
001aaa541
V
M
2E
001aag497
Fig 1.
Logic symbol
Fig 2.
Logic diagram for 1 switch
74HC_HCT2G66
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 10 — 3 October 2013
2 of 23
NXP Semiconductors
74HC2G66; 74HCT2G66
Dual single-pole single-throw analog switch
6. Pinning information
6.1 Pinning
74HC2G66
74HCT2G66
1Y
1
8
V
CC
1Z
2
7
1E
74HC2G66
74HCT2G66
2E
1Y
1Z
2E
GND
1
2
3
4
001aai699
3
6
2Z
8
7
6
5
V
CC
1E
2Z
2Y
GND
4
5
2Y
001aam498
Transparent top view
Fig 3.
Pin configuration SOT505-2 (TSSOP8) and
SOT765-1 (VSSOP8)
Fig 4.
Pin configuration SOT833-1 (XSON8)
74HC2G66
74HCT2G66
1Y
1Z
2E
GND
1
2
3
4
8
7
6
5
V
CC
1E
2Z
2Y
001aal625
Transparent top view
Fig 5.
Pin configuration SOT996-2 (XSON8)
6.2 Pin description
Table 3.
Symbol
1Y, 2Y
1Z, 2Z
GND
1E, 2E
V
CC
Pin description
Pin
1, 5
2, 6
4
7, 3
8
Description
independent input or output
independent input or output
ground (0 V)
enable input (active HIGH)
supply voltage
74HC_HCT2G66
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 10 — 3 October 2013
3 of 23
NXP Semiconductors
74HC2G66; 74HCT2G66
Dual single-pole single-throw analog switch
7. Functional description
Table 4.
Input nE
L
H
[1]
H = HIGH voltage level; L = LOW voltage level.
Function table
[1]
Switch
OFF
ON
8. Limiting values
Table 5.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
I
IK
I
SK
I
SW
I
CC
I
GND
T
stg
P
tot
Parameter
supply voltage
input clamping current
switch clamping current
switch current
supply current
ground current
storage temperature
total power dissipation
T
amb
=
40 C
to +125
C
per package
per switch
[1]
[2]
[2]
[2]
Conditions
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
SW
>
0.5
V or V
SW
< V
CC
+ 0.5 V
[1]
[1]
Min
0.5
-
-
-
-
30
65
-
-
Max
+11.0
20
20
20
30
-
+150
300
100
Unit
V
mA
mA
mA
mA
mA
C
mW
mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For TSSOP8 packages: above 55
C
the value of P
tot
derates linearly with 2.5 mW/K.
For VSSOP8 packages: above 110
C
the value of P
tot
derates linearly with 8.0 mW/K.
For XSON8 packages: above 118
C
the value of P
tot
derates linearly with 7.8 mW/K.
74HC_HCT2G66
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 10 — 3 October 2013
4 of 23
NXP Semiconductors
74HC2G66; 74HCT2G66
Dual single-pole single-throw analog switch
9. Recommended operating conditions
Table 6.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
[1]
Symbol Parameter
V
CC
V
I
V
O
V
SW
T
amb
t/V
supply voltage
input voltage
output voltage
switch voltage
ambient temperature
input transition rise
and fall rate
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
CC
= 10.0 V
[1]
Conditions
Min
2.0
0
0
0
40
-
-
-
-
74HC2G66
Typ
5.0
-
-
-
+25
-
1.67
-
-
Max
10.0
V
CC
V
CC
V
CC
+125
625
139
83
35
Min
4.5
0
0
0
40
-
-
-
-
74HCT2G66
Typ
5.0
-
-
-
+25
-
1.67
-
-
Max
5.5
V
CC
V
CC
V
CC
+125
-
139
-
-
Unit
V
V
V
V
C
ns/V
ns/V
ns/V
ns/V
To avoid drawing V
CC
current out of pin nZ, when switch current flows in pin nY, the voltage drop across the bidirectional switch must not
exceed 0.4 V. If the switch current flows into pin nZ, no V
CC
current will flow out of terminal nY. In this case there is no limit for the
voltage drop across the switch, but the voltage at pins nY and nZ may not exceed V
CC
or GND.
10. Static characteristics
Table 7.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
74HC2G66
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
CC
= 9.0 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
CC
= 9.0 V
I
I
input leakage current
nE; V
I
= V
CC
or GND
V
CC
= 6.0 V
V
CC
= 9.0 V
I
S(OFF)
I
S(ON)
I
CC
OFF-state
leakage current
ON-state
leakage current
supply current
nY or nZ; V
CC
= 9.0 V; see
Figure 6
nY or nZ; V
CC
= 9.0 V; see
Figure 7
nE, nY and nZ = V
CC
or GND
V
CC
= 6.0 V
V
CC
= 9.0 V
74HC_HCT2G66
Conditions
40 C
to +85
C
Min
1.5
3.15
4.2
6.3
-
-
-
-
-
-
-
-
Typ
[1]
1.2
2.4
3.2
4.7
0.8
2.1
2.8
4.3
-
-
0.1
0.1
Max
-
-
-
-
0.5
1.35
1.8
2.7
0.1
0.2
1.0
1.0
40 C
to +125
C
Unit
Min
1.5
3.15
4.2
6.3
-
-
-
-
-
-
-
-
Max
-
-
-
-
0.5
1.35
1.8
2.7
0.1
0.2
1.0
1.0
V
V
V
V
V
V
V
V
A
A
A
A
-
-
-
-
10
20
-
-
20
40
A
A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 10 — 3 October 2013
5 of 23
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