Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC3G34
CMOS IC
SINGLE BUFFER GATE

DESCRIPTION
The U74LVC3G34 is a triple buffer gate which provides the
Boolean function Y = A.
The U74LVC3G34 inputs can be driven from either 3.3 V or 5 V
devices.
The U74LVC3G34 IOFF circuitry disables the output, preventing
a damaging backflow current through the device when it is powered
down.

SOP-8
FEATURES
* Wide supply voltage range from 1.65V to 5.5V
* Inputs accept voltages up to 5.5V
* IOFF supports partial-power-down mode
* Low static power consumption; ICC=10μA (Max.)

ORDERING INFORMATION
Ordering Number
U74LVC3G34G-S08-R

Package
SOP-8
Packing
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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
PIN CONFIGURATION

FUNCTION TABLE
CMOS IC
INPUT(A)
OUTPUT(Y)
H
H
L
L
Note: H: HIGH voltage level; L: LOW voltage level.

LOGIC DIAGRAM (positive logic)
Logic symbol
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IEC logic symbol
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CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
Supply Voltage
Input Voltage
Output Voltage
SYMBOL
VCC
VIN
VOUT
CONDITIONS
Output in the high or low state
Output in the power-off state
RATINGS
-0.5 ~+6.5
-0.5 ~+6.5
-0.5 ~ VCC +0.5
-0.5 ~ +6.5
UNIT
V
V
V
V
Continuous VCC or GND
ICC
±100
mA
Current
Continuous Output Current
IOUT
VOUT=0 ~ VCC
±50
mA
Input Clamp Current
IIK
VIN<0
-50
mA
Output Clamp Current
IOK
VO>VCC or VOUT<0
-50
mA
Storage Temperature Range
TSTG
-65 ~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
Operating
Data retention only
Supply Voltage
VCC
Input Voltage
Output Voltage
Operating Temperature
VIN
VOUT
TA
High or low state
Input Transition Rise or Fall
Rate
∆t/∆v
VCC=1.8V±0.15V, 2.5V±0.2V
VCC=3.3V±0.3V
VCC=5V±0.5V

MIN
1.65
1.5
0
0
-40
TYP
MAX
5.5
5.5
VCC
85
20
10
5
UNIT
V
V
V
V
°C
ns/V
ns/V
ns/V
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
High-level Input Voltage
Low-level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
SYMBOL
VIH
VIL
VOH
VOL
TEST CONDITIONS
VCC=1.65V ~ 1.95V
VCC=2.3V to 2.7V
VCC=3V to 3.6V
VCC=4.5V to 5.5V
VCC=1.65V ~ 1.95V
VCC=2.3V to 2.7V
VCC=3V to 3.6V
VCC=4.5V to 5.5V
VCC=1.65 ~ 5.5V, IOH=-100μA
VCC=1.65V, IOH=-4mA
VCC=2.3V, IOH=-8mA
IOH=-16mA
VCC=3.0V
IOH=-24mA
VCC=4.5V, IOH=-32mA
VCC=1.65 ~ 5.5V, IOH=-100μA
VCC=1.65V, IOH=-4mA
VCC=2.3V, IOH=-8mA
IOH=-16mA
VCC=3.0V
IOH=-24mA
VCC=4.5V, IOH=-32mA
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MIN
0.65×VCC
1.7
2
0.7×VCC
TYP
MAX
0.35×VCC
0.7
0.8
0.3×VCC
VCC-0.1
1.2
1.9
2.4
2.3
3.8
0.1
0.45
0.3
0.4
0.55
0.55
UNIT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
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ELECTRICAL CHARACTERISTICS (Cont.)
PARAMETER
Input Leakage Current
Power OFF Leakage Current
Quiescent Supply Current
Additional Quiescent Supply
Current Per Input Pin
Input Capacitance

SYMBOL
TEST CONDITIONS
II(LEAK)
VCC=0 to 5.5V, VIN=5.5V or GND
Ioff
VCC=0V, VIN or VOUT=5.5V
VCC=1.65 ~5.5V, VIN=VCC or GND,
ICC
IOUT=0
VCC=3 to 5.5V, One input at
∆ICC
VCC-0.6V, Other inputs at VCC or
GND
CI
VCC=3.3V, VIN=VCC or GND
MIN
TYP
MAX
±5
±10
UNIT
μA
μA
10
μA
500
μA
6
pF
SWITCHING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
Propagation delay from input
(A or B) to output(Y)

CMOS IC
SYMBOL
tPLH / tPHL
TEST CONDITIONS
VCC=1.8±0.15V,CL=30pF,
RL=1000Ω
VCC=2.5±0.2V,CL=30pF, RL=500Ω
VCC=3.3±0.3V,CL=50pF, RL=500Ω
VCC=5±0.5V,CL=50pF, RL=500Ω
MIN
TYP
MAX
UNIT
3.2
7.9
ns
1.5
1.4
1.1
4.4
4.1
3.2
ns
ns
ns
MAX
UNIT
pF
pF
pF
pF
OPERATING CHARACTERISTICS (f=10MHz, TA =25°C , unless otherwise specified)
PARAMETER
Power Dissipation
Capacitance
SYMBOL
CPD
TEST CONDITIONS
VCC=1.8V
VCC=2.5V
VCC=3.3V
VCC=5V
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MIN
TYP
19
19
19
21
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CMOS IC
TEST CIRCUIT AND WAVEFORMS
Note: CL includes probe and jig capacitance.
VCC
1.8V±0.15V
2.5V±0.2V
3.3V±0.3V
5V±0.5V
VIN
VCC
VCC
3V
VCC
t R / tF
≤2ns
≤2ns
≤2.5ns
≤2.5ns
VM
VCC/2
VCC/2
1.5V
VCC/2
CL
30pF
30pF
50pF
50pF
RL
1KΩ
500Ω
500Ω
500Ω
Notes: 1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, ZO = 50Ω.
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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www.unisonic.com.tw
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