74AHC_AHCT1G66_4 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 04 — 18 December 2008 3 of 17
NXP Semiconductors
74AHC1G66; 74AHCT1G66
Single-pole single-throw analog switch
6.2 Pin description
7. Functional description
[1] H = HIGH voltage level; L = LOW voltage level.
8. Limiting values
[1] The input and output voltage ratings may be exceeded if the input and output voltage ratings are observed.
[2] For TSSOP5 and SC-74A packages: above 87.5 °C the value of P
tot
derates linearly with 4.0 mW/K.
9. Recommended operating conditions
Table 3. Pin description
Symbol Pin Description
Y 1 independent input or output
Z 2 independent input or output
GND 3 ground (0 V)
E 4 enable input (active HIGH)
V
CC
5 supply voltage
Table 4. Function table
[1]
Input E Switch
L OFF
HON
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage 0.5 +7.0 V
I
IK
input clamping current V
I
< 0.5 V
[1]
20 - mA
I
SK
switch clamping current V
I
< 0.5 V or V
I
>V
CC
+ 0.5 V
[1]
- ±20 mA
I
SW
switch current 0.5 V < V
O
< V
CC
+ 0.5 V - ±25 mA
I
CC
supply current - 75 mA
I
GND
ground current 75 - mA
T
stg
storage temperature 65 +150 °C
P
tot
total power dissipation T
amb
= 40 °C to +125 °C
[2]
- 250 mW
Table 6. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
[1]
Symbol Parameter Conditions 74AHC1G66 74AHCT1G66 Unit
Min Typ Max Min Typ Max
V
CC
supply voltage 2.0 5.0 5.5 4.5 5.0 5.5 V
V
I
input voltage 0 - 5.5 0 - 5.5 V
V
SW
switch voltage 0 - V
CC
0-V
CC
V
74AHC_AHCT1G66_4 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 04 — 18 December 2008 4 of 17
NXP Semiconductors
74AHC1G66; 74AHCT1G66
Single-pole single-throw analog switch
[1] To avoid drawing V
CC
current out of pin Z, when switch current flows in pin Y, the voltage drop across the bidirectional switch must not
exceed 0.4 V. If the switch current flows into pin Z, no V
CC
current will flow out of terminal Y. In this case there is no limit for the voltage
drop across the switch, but the voltage at pins Yand Z may not exceed V
CC
or GND.
[2] Applies to control signal levels.
10. Static characteristics
T
amb
ambient temperature 40 +25 +125 40 +25 +125 °C
t/V input transition rise and
fall rate
V
CC
= 3.3 ± 0.3 V
[2]
- - 100 - - - ns/V
V
CC
= 5.0 ± 0.5 V
[2]
- - 20 - - 20 ns/V
Table 6. Recommended operating conditions
…continued
Voltages are referenced to GND (ground = 0 V).
[1]
Symbol Parameter Conditions 74AHC1G66 74AHCT1G66 Unit
Min Typ Max Min Typ Max
Table 7. Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions 25 °C 40 °C to +85 °C 40 °C to +125 °C Unit
Min Typ Max Min Max Min Max
74AHC1G66
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V 1.5 - - 1.5 - 1.5 - V
V
CC
= 3.0 V 2.1 - - 2.1 - 2.1 - V
V
CC
= 5.5 V 3.85 - - 3.85 - 3.85 - V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V - - 0.5 - 0.5 - 0.5 V
V
CC
= 3.0 V - - 0.9 - 0.9 - 0.9 V
V
CC
= 5.5 V - - 1.65 - 1.65 - 1.65 V
I
I
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 5.5 V
- - 0.1 - 1.0 - 2.0 µA
I
S(OFF)
OFF-state
leakage
current
Y or Z; V
CC
= 5.5 V;
see
Figure 4
- - 0.1 - 1.0 - 4.0 µA
I
S(ON)
ON-state
leakage
current
Y or Z; V
CC
= 5.5 V;
see
Figure 5
- - 0.1 - 1.0 - 4.0 µA
I
CC
supply current E, Y or Z = V
CC
or GND;
V
CC
= 5.5 V
- - 1.0 - 10 - 40 µA
C
I
input
capacitance
E input - 2.0 10 - 10 - 10 pF
C
S(ON)
ON-state
capacitance
Y or Z input or output - 4.0 10 - 10 - 10 pF
74AHCT1G66
V
IH
HIGH-level
input voltage
V
CC
= 4.5 V to 5.5 V 2.0 - - 2.0 - 2.0 - V
V
IL
LOW-level
input voltage
V
CC
= 4.5 V to 5.5 V - - 0.8 - 0.8 - 0.8 V
I
I
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 5.5 V
- - 0.1 - 1.0 - 2.0 µA
74AHC_AHCT1G66_4 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 04 — 18 December 2008 5 of 17
NXP Semiconductors
74AHC1G66; 74AHCT1G66
Single-pole single-throw analog switch
10.1 Test circuits
I
S(OFF)
OFF-state
leakage
current
Y or Z; V
CC
= 5.5 V;
see
Figure 4
- - 0.1 - 1.0 - 4.0 µA
I
S(ON)
ON-state
leakage
current
Y or Z; V
CC
= 5.5 V;
see
Figure 5
- - 0.1 - 1.0 - 4.0 µA
I
CC
supply current E, Y or Z = V
CC
or GND;
V
CC
= 5.5 V
- - 1.0 - 10 - 40 µA
I
CC
additional
supply current
per input pin; V
I
= 3.4 V;
other inputs at V
CC
or GND;
I
O
= 0 A; V
CC
= 5.5 V
- - 1.35 - 1.5 - 1.5 mA
C
I
input
capacitance
E input - 2.0 10 - 10 - 10 pF
C
S(ON)
ON-state
capacitance
Y or Z input or output - 4.0 10 - 10 - 10 pF
Table 7. Static characteristics
…continued
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions 25 °C 40 °C to +85 °C 40 °C to +125 °C Unit
Min Typ Max Min Max Min Max
V
I
= V
CC
or GND and V
O
= GND or V
CC
.V
I
= V
CC
or GND and V
O
= open circuit.
Fig 4. Test circuit for measuring OFF-state
leakage current
Fig 5. Test circuit for measuring ON-state
leakage current
001aai835
I
S
I
S
V
I
V
IL
V
O
V
CC
GND
ZY
E
001aai836
I
S
V
I
V
IH
V
O
V
CC
GND
ZY
E

74AHCT1G66GW,125

Mfr. #:
Manufacturer:
Nexperia
Description:
Analog Switch ICs BILATERAL SWITCH
Lifecycle:
New from this manufacturer.
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