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NC7SZ66 — Low Voltage Single SPST Normally Open Bus Switch
December 2010
NC7SZ66
Low Voltage Single SPST Normally Open Bus Switch
Features
Broad V
CC
Operating Range: 1.65V to 5.5V
Rail-to-Rail Signal Handling
Power Down High-Impedance Inputs/Outputs
5Ω Switch Connection between Two Ports
Minimal Propagation Delay through the Switch
Low I
CC
Zero Bounce in Flow-Through Mode
Control Input Compatible with CMOS Input Levels
Ultra-Small MicroPak™ Packages
Space-Saving SOT23 and SC70 Packages
Description
The NC7SZ66 is a ultra high-speed (UHS) CMOS
compatible single-pole/single-throw (SPST) bus switch.
The LOW on resistance of the switch allows inputs to
be connected to out-puts with minimal propagation
delay and without generating additional ground bounce
noise. The device is organized as a 1- bit switch with a
switch enable (OE) signal. When OE is HIGH, the
switch is on and port A is connected to port B. When
OE is LOW, the switch is open and a high-impedance
state exists between the two ports..
Ordering Information
Part Number
NC7SZ66M5X
NC7SZ66P5X
NC7SZ66L6X
Top Mark
7Z66
Z66
EE
Package
5-Lead SOT23, JEDEC MO-178 1.6mm
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
6-Lead, MicroPak™, 1x1mm Wide
Packing Method
3000 Units on Tape & Reel
3000 Units on Tape & Reel
5000 Units on Tape & Reel
© 1996 Fairchild Semiconductor Corporation
NC7SZ66 • Rev. 1.0.4
www.fairchildsemi.com
NC7SZ66 — Low Voltage Single SPST Normally Open Bus Switch
Connection Diagrams
Figure 1. Logic Symbol
Pin Configurations
Figure 2. SC70 and SOT23 (Top View)
Figure 3. MicroPak™ (Top Through View)
Pin Definitions
Pin # SC70 / SOT23
1
2
3
4
5
Pin # MicroPak™
1
2
3
4
6
5
Name
A
B
GND
OE
V
CC
NC
Description
Bus A I/O
Bus B I/O
Ground
Switch Enable Input
Supply Voltage
No Connect
Function Table
OE
L
H
H = HIGH Logic Level
L = LOW Logic Level
B
0
High Z-State
A
0
Function
Disconnected
Connect
© 1996 Fairchild Semiconductor Corporation
NC7SZ66 • Rev. 1.0.4
www.fairchildsemi.com
2
NC7SZ66 — Low Voltage Single SPST Normally Open Bus Switch
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only.
Symbol
V
CC
V
S
V
IN
I
IK
I
OUT
I
CC
or I
GND
T
STG
T
J
T
L
P
D
ESD
Supply Voltage
DC Switch Voltage
DC Input Voltage
DC Input Diode Current
DC Output Sink Current
(1)
Parameter
Min.
-0.5
-0.5
-0.5
Max.
7.0
V
CC
to 0.5
7.0
-50
128
±100
Unit
V
V
V
mA
mA
mA
°C
°C
°C
mW
V
V
IN
< 0V
DC V
CC
or Ground Current
Storage Temperature Range
Junction Temperature Under Bias
Junction Lead Temperature (Soldering, 10 Seconds)
Power Dissipation at +85°C
SOT-23
SC70-5
-65
+150
+150
+260
200
150
4000
1500
Human Body Model, JEDEC:JESD22-A114
Charge Device Model: JEDEC:JESD22-C101
Note:
1. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are
observed.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
V
CC
V
IN
V
S
V
OUT
t
r
, t
f
T
A
θ
JA
Parameter
Supply Voltage Operating
Input Voltage
Switch Input Voltage
Output Voltage
Conditions
Min.
1.65
0
0
0
Max.
5.50
5.5
V
CC
V
CC
10
5
DC
+85
300
425
Unit
V
V
V
V
ns/V
°C
°C/W
V
CC
=2.3V - 3.6V
Input Rise and Fall Times
Operating Temperature
Thermal Resistance
SOT-23
SC70-5
V
CC
=4.5V – 5.5V
Switching I/O
0
0
0
-40
Note:
2. Unused inputs must be held HIGH or LOW; they may not float.
© 1996 Fairchild Semiconductor Corporation
NC7SZ66 • Rev. 1.0.4
www.fairchildsemi.com
3
NC7SZ66 — Low Voltage Single SPST Normally Open Bus Switch
DC Electrical Characteristics
All typical values are at the specified V
CC
, and T
A
= 25°C.
Symbol
V
IH
V
IL
Parameter
HIGH Level
Input Voltage
LOW Level
Input Voltage
Control Input
Leakage
Current
Off Leakage
Current
V
CC
1.65 to 1.95
2.30 to 5.50
1.65 to 1.95
2.30 to 5.50
0 to 5.5
Conditions
T
A
=-40 to +85°C
Min.
0.75V
CC
0.7V
CC
0.25V
CC
0.3V
CC
T
A
=+25°C
Min.
Typ.
Units
V
V
Typ.
Max.
I
IN
I
OFF
0
≤
V
IN
≤
5.5V
±0.05
±0.05
3
5
7
4
10
5
13
7
25
±1.00
±10.00
7
12
15
9
20
12
30
28
60
6
12
µA
µA
1.65 to 5.50 0
≤
A, B
≤
V
CC
V
IN
=0V, I
IN
=30mA
4.5
V
IN
=2.4V, I
IN
=15mA
V
IN
=4.5V, I
IN
=30mA
V
IN
=0V, I
IN
=24mA
V
IN
=3V, I
IN
=24mA
V
IN
=0V, I
IN
=8mA
V
IN
=2.3V, I
IN
=8mA
V
IN
=0V, I
IN
=4mA
V
IN
=1.8V, I
IN
=4mA
I
A
=-30mA,
0
≤
V
Bn
≤
V
CC
I
A
=-24mA,
0
≤
V
Bn
≤
V
CC
I
A
=-8mA,
0
≤
V
Bn
≤
V
CC
I
A
=-4mA,
0
≤
V
Bn
≤
V
CC
V
IN
= V
CC
or GND,
I
OUT
=0
R
ON
Switch On
(3)
Resistance
3.0
2.30
1.8
5.0
Ω
R
flat
On
Resistance
(3,4,5)
Flatness
3.3
2.5
1.8
Ω
128
125
0.05
10.00
µA
I
CC
Quiescent
Supply
Current
1.65 to 5.50
Notes:
3. Measured by the voltage drop between pins A and B at the indicated current through the switch. On resistance
is determined by the lower of the voltages on the two (A or B) pins.
4. Parameter is characterized but not tested in production.
5. Flatness is defined as the difference between the maximum and minimum value of on resistance over the
specified range of conditions.
© 1996 Fairchild Semiconductor Corporation
NC7SZ66 • Rev. 1.0.4
www.fairchildsemi.com
4
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