74HC_HCT1G66_4 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 04 — 19 December 2008 3 of 18
NXP Semiconductors
74HC1G66; 74HCT1G66
Single-pole single-throw analog switch
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 current 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
[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.
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 +11.0 V
I
IK
input clamping current V
I
< −0.5 V or V
I
>V
CC
+ 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 V
SW
> −0.5 V or V
SW
< V
CC
+ 0.5 V - ±25 mA
I
CC
supply current - 50 mA
I
GND
ground current −50 - 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 74HC1G66 74HCT1G66 Unit
Min Typ Max Min Typ Max
V
CC
supply voltage 2.0 5.0 10.0 4.5 5.0 5.5 V
V
I
input voltage 0 - V
CC
0-V
CC
V
V
SW
switch voltage 0 - V
CC
0-V
CC
V
T
amb
ambient temperature −40 +25 +125 −40 +25 +125 °C
∆t/∆V input transition rise
and fall rate
V
CC
= 2.0 V - - 625 - - - ns/V
V
CC
= 4.5 V - 1.67 139 - 1.67 139 ns/V
V
CC
= 6.0 V - - 83 - - - ns/V
V
CC
= 10.0 V - - 35 - - - ns/V
