Fairchild Semiconductor NC7WB66 Datasheet
NC7WB66
NC7WB66 TinyLogic
May 2000
Revised August 2003
TinyLogic
Low Voltage UHS Dual SPST
Normally Open Bus Switch
General Description
The NC7WB66 is an ultr a high-speed (UHS) dual singlepole/single-throw ( SPST) bus switch. The devic e is fabricated with advanced sub-micron CMOS technology to
achieve high speed e nable and disable times and low On
Resistance over a broad V
fied to operate over the 1 .65 to 5.5V V
The device is organized as a dual switch with inde pende nt
CMOS compatible switch enable (OE) controls. When OE
is HIGH, the switch is ON and P ort A is connected to Port
B. When OE is LOW, the switch is OPEN and a highimpedance state exist s betw een the two por ts. The e nable
inputs tolerate voltage s up to 5.5 V inde pende nt of the V
operating range.
range. The device is speci-
CC
operating range.
CC
Ordering Code:
Product
Number Number Top Mark
NC7WB66K8X MAB08A WB66 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3K Units on Tape and Reel
NC7WB66L8X MAC08A P4 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel
Features
■ Useful in both analog and digital applications
■ Space saving US8 surface mount package
■ MicroPak
■ Typical 7
■ Broad VCC operating range: 1.65V to 5.5V
■ Rail-to-rail signal handling
■ Power down high impedance cont rol inpu ts
■ Control inputs are overvoltage tolerant
■ Control inputs are CMOS compatible
CC
Package Description Supplied AsOrder Package Code
leadless package
Ω On Resistance @ 5V V
CC
Low Voltage UHS Dual SPST Normally Open Bus Switch
TinyLogic is a registered tradema rk of F airc hild Semiconduct or Corporation.
MicroPak is a tradem ark of Fairchild Semiconductor Corporation.
© 2003 Fairchild Semiconductor Corporation DS500373 www.fairchildsemi.com
Logic Symbol
NC7WB66
Pin Descriptions
Pin Names Description
A Switch Port A
B Switch Port B
OE Control Input
Function Table
Switch Enable Input (OE) Function
L Disconnect
H B Connected to A
H = HIGH Logic Level L = LOW Logic Level
Connection Diagrams
(Top View)
Pin One Orientation Diagram
AAA represents Product Code Top Mark - see ordering cod e
Note: Orientation of Top Mark determines Pin One location. Read the top
product code mark lef t to right, Pin One is the lo w er left pin (see diagram ).
Pad Assignments for MicroPak
www.fairchildsemi.com 2
(Top Through View)
Absolute Maximum Ratings(Note 1) Recommended Operating
Supply Voltage (VCC) −0.5V to +7.0V
DC Switch Voltage (V
DC Input Voltage (V
) −0.5V to VCC + 0.5V
S
) (Note 2) −0.5V to +7.0V
IN
DC Input Diode Current
) VIN < 0V −50 mA
@ (I
IK
DC Switch Output Current (I
or Ground Current (ICC/I
DC V
CC
Storage Temperature Range (T
) ±128 mA
OUT
) ±100 mA
GND
) −65°C to +150°C
STG
Junction Lead Temperature
under Bias (T
Junction Lead Temperature (T
(Soldering, 10 Seconds)
Power Dissipation (P
) +150°C
J
)
L
+260°C
) @ +85°C
D
SC70-6 250 mW
Conditions
Supply Voltage (V
Control Input Voltage (V
Switch Input Voltage (V
Switch Output Voltage (V
Operating Temperature (TA) −40°C to +85°C
Input Rise and Fall Time (t
Control Input V
Control Input V
Control Input V
Thermal Resistance (
Note 1: The “Absolute Maxi mum Ratings ” are those val ues beyond w hich
the safety of the d evice cannot b e guaranteed . The device sh ould not be
operated at these limit s. The parametric values defi ned in the Electrical
Characteristics tab l es are not guar anteed at the absolute m ax imum ratings .
The “Recommend ed O peratin g Cond itions” t able w ill defin e the condition s
for actual device operation.
Note 2: The input and output negative voltage ratings may be exceeded if
the input and ou t put diode current ratings ar e observed.
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
(Note 3)
) 1.65V to 5.5V
CC
) 0V to 5.5V
IN
)0V to V
IN
)0V to V
OUT
, tf)
r
= 1.65V−2.7V 0 ns/V to 20 ns/V
CC
= 3.0V−3.6V 0 ns/V to 10 ns/V
CC
= 4.5V−5.5V 0 ns/V to 5 ns/V
CC
θ
)250°C/W
JA
DC Electrical Characteristics
V
Symbol Parameter
V
HIGH Level Input Voltage 1.65–1.95 0.75 V
IH
V
LOW Level Input Voltage 1.65–1.95 0.25 V
IL
I
Input Leakage Current 0–5.5 ±0.1 ±1.0 µA0 ≤ VIN ≤ 5.5V
IN
Switch OFF Leakage Current 1.65–5.5 ±0.1 ±1.0 µA0 ≤ A, B ≤ V
I
OFF
R
Switch ON Resistance
ON
(Note 4) 7 13.5 13.5 V
I
Quiescent Supply Current
CC
All Channels ON or OFF I
Analog Signal Range V
RRange ON Resistance over 4.5 8 15 15
Signal Range 3.0 15 30 30 IO = −24 mA, 0 ≤ VI ≤ V
(Note 4)(Note 5) 2.3 45 75 75 IO = −8 mA, 0 ≤ VI ≤ V
∆R
ON Resistance Match 4.5 0.2
ON
Between Channels 3.0 0.2 IO = −24 mA, VI = 2.1
(Note 4)(Note 7) 2.3 0.5 IO = −8 mA, VI = 1.6
CC
(V) Min Typ Max Min Max
2.3–5.5 0.7 V
2.3–5.5 0.3 V
4.5
3.0
2.3
1.65 12.5 30 30
5.5 1 10 µA
CC
1.65 150 275 275 IO = −4 mA, 0 ≤ VI ≤ V
1.65 0.6 IO = −4 mA, VI = 1.15
TA = +25°CT
CC
CC
610 10ΩVI = 0V, IO = 30 mA
610 10 V
7.5 15 15
8.5 15 15 V
920 20ΩV
10.5 20 20 VI = 2.3V, IO = −8 mA
17 30 30 VI = 1.65V, IO = −4 mA
0V
A
0.75 V
0.7 V
CC
CC
CC
= −40°C to +85°C
CC
CC
0.25V
CC
0.3 V
CC
0VCCV
Units Conditions
V
V
Ω
Ω
Ω
Ω
CC
= 2.4V, IO = −30 mA
I
= 4.5V, IO = −30 mA
I
VI = 0V, IO = 24 mA
= 3V, IO = −24 mA
I
= 0V, IO = 8 mA
I
VI = 0V, IO = 4 mA
VIN = VCC or GND
= 0
OUT
IO = −30 mA, 0 ≤ VI ≤ V
IO = −30 mA, VI = 3.15
NC7WB66
CC
CC
CC
CC
CC
CC
3 www.fairchildsemi.com
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