Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74CBT3306
CMOS IC
DUAL FET BUS SWITCH

DESCRIPTION
The U74CBT3306 dual FET bus switch features independent
line switches.
Each switch is disabled when the associated output-enable
( OE ) input is high.

FEATURES
* 5-Ω Switch Connection Between Two Ports
* TTL-Compatible Input Levels

ORDERING INFORMATION
Ordering Number
U74CBT3306G-S08-R
U74CBT3306G-P08-R
Package
SOP-8
TSSOP-8
Packing
Tape Reel
Tape Reel
U74CBT3306G-S08-R

(1) Packing Type
(1) R: Tape Reel
(2) Package Type
(2) S08: SOP-8, P08: TSSOP-8
(3) Green Package
(3) G: Halogen Free and Lead Free
MARKING
SOP-8
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Copyright © 2015 Unisonic Technologies Co., Ltd
TSSOP-8
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U74CBT3306
CMOS IC

PIN CONFIGURATION

FUNCTION TABLE
INPUT
OE
L
H

FUNCTION
A port = B port
Disconnect
LOGIC DIAGRAM
1A
1OE
2A
2OE
2
1B
1
5
6
2B
7
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U74CBT3306

CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
Supply Voltage
Input Voltage range(see Note 1)
Input Clamp Current
SYMBOL
VCC
VIN
IIK
RATINGS
-0.5 ~ 7
-0.5 ~ 7
-50
UNIT
V
V
mA
128
mA
Continuous channel current
Storage Temperature range
TSTG
-65~+150
°C
Notes: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current
ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.

THERMAL DATA
PARAMETER
Junction to Ambient

SYMBOL
SOP-8
TSSOP-8
SYMBOL
VCC
VIH
VIL
TA
MIN
4
2
TYP
-40
MAX
5.5
UNIT
V
V
V
°C
0.8
85
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
Control Input Clamp Voltage
Input Leakage Current
SYMBOL
VIK
II(LEAK)
Quiescent Supply Current
ICC
Additional Quiescent Supply
Current
Control Input Capacitance
∆ICC
CIN
Input Capacitance
CIO(OFF)
ON-Resistance

θJA
UNIT
°C/W
°C/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
High-Level Control Input Voltage
Low-Level Control Input Voltage
Operating Temperature

RATINGS
97
149
RON
TEST CONDITIONS
VCC=4.5V, IIN=-18mA
VCC=5.5V, VIN=VCC or GND
MIN TYP MAX UNIT
-1.2
V
±1
µA
VCC=5.5V, IOUT=0, VIN=VCC or GND
VCC=5.5V, One input at 3.4V,
Other inputs at VCC or GND
VIN=3V or 0
3
µA
2.5
mA
3
VOUT=3V or 0, OE =VCC
4
VCC=4V, VIN=2.4V,IOUT =-15mA
IOUT=64mA
VCC=4.5V, VIN=0
IOUT=30mA
IOUT=-15mA
VCC=4.5V, VIN=2.4V
14
5
5
10
pF
pF
20
7
7
15
Ω
Ω
Ω
Ω
SWITCHING CHARACTERISTICS (CL=50PF, RL=500Ω. see TEST CIRCUIT AND WAVEFORMS)
PARAMETER
From input (A or B) to output
(B or A) (Note)
SYMBOL
From input OE to output
(A or B)
tpd
ten
TEST CONDITIONS
VCC=4V
VCC=5V±0.5V
VCC=4V
MIN TYP MAX UNIT
0.35 ns
0.25 ns
5.6
ns
VCC=5V±0.5V
1.8
5
ns
VCC=4V
4.6
ns
From input OE to output
tdis
VCC=5V±0.5V
1
4.3
ns
(A or B)
Note: The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and
the specified load capacitance, when driven by an ideal voltage source (zero output impedance).
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QW-R502-941.B
U74CBT3306

CMOS IC
TEST CIRCUIT AND WAVEFORMS
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
VCC
4V
5V±0.5V
4V
5V±0.5V
4V
5V±0.5V
VI
VCC or GND
VCC or GND
GND
GND
VCC
VCC
tR / tF
≤2.5ns
≤2.5ns
≤2.5ns
≤2.5ns
≤2.5ns
≤2.5ns
PROPAGATION DELAY TIMES
V∆
0.3V
0.3V
0.3V
0.3V
VEXT
Open
Open
7V
7V
Open
Open
CL
50pF
50pF
50pF
50pF
50pF
50pF
RL
500Ω
500Ω
500Ω
500Ω
500Ω
500Ω
ENABLE AND DISABLE TIMES
Notes: 1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics: PRR≤10MHz,
ZO=50Ω, tr≤2.5ns, tf≤2.5 ns.
3. The outputs are measured one at a time with one transition per measurement.
4. tPLZ and tPHZ are the same as tdis.
5. tPZL and tPZH are the same as ten.
6. tPLH and tPHL are the same as tpd(s).
7. All parameters and waveforms are not applicable to all devices.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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