Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC1G126
CMOS IC
BUS BUFFER/LINE DRIVER;
3-STATE

DESCRIPTION
The U74LVC1G126 is single bus buffer/line driver with 3-state
output. The output is disabled When the output enable (OE) is low.
When OE is high, true data is will pass A input to the Y output.
This device has power-down protective circuit preventing device
from destruction when it is powered down.

FEATURES
* Operate From 1.65V to 5.5V
* Inputs Accept Voltages to 5.5V
* High Noise Immunity
* Low Power Dissipation
* Direct Interface With TTL level

ORDERING INFORMATION
Ordering Number
U74LVC1G126G-AE5-R
U74LVC1G126G-AF5-R
U74LVC1G126G-AL5-R

Package
SOT-23-5
SOT-25
SOT-353
Packing
Tape Reel
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015Unisonic Technologies Co., Ltd
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QW-R502-398.D
U74LVC1G126

CMOS IC
PIN CONFIGURATION
VCC
5
1
OE

Y
4
2
A
3
GND
FUNCTION TABLE
INPUT(OE)
INPUT(A)
OUTPUT(Y)
H
L
L
H
H
H
L
X
Z
Note: H: HIGH voltage level; L: LOW voltage level; X=don’t care; Z=high-impedance OFF-state.

LOGIC DIAGRAM (Positive Logic)
Logic Symbol
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IEC Logic Symbol
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
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VCC
VIN
RATINGS
UNIT
-0.5 ~ +6.5
V
-0.5 ~ +6.5
V
Enable mode
-0.5 ~ VCC + 0.5
V
Output Voltage
VOUT
Disable mode
-0.5 ~ +6.5
V
Power-down mode
-0.5 ~ +6.5
V
VCC or GND Current
ICC
±100
mA
Continuous Output Current (VOUT=0 to VCC)
IOUT
±50
mA
Input Clamp Current (VIN<0)
IIK
-50
mA
Output Clamp Current (VOUT>VCC or VOUT<0)
IOK
±50
mA
SOT-23-5
300
Power Dissipation
PD
mW
SOT-25
360
(TA=-40°C ~ +125°C)
SOT-353
250
Operating Temperature
TOPR
-40 ~ +125
°C
Storage Temperature
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.
Supply Voltage
Input Voltage

RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Input Voltage
SYMBOL
VCC
VIN
Output Voltage
VOUT
Input Transition Rise or Fall
Rate
t R / tF

TEST CONDITIONS
Operating
VCC=1.65V ~ 5.5V; Enable mode
VCC=1.65V ~ 5.5V; Disable mode
VCC=0V; Power-Down Mode
VCC=1.65V ~ 2.7V
VCC=2.7V ~ 5.5V
MIN
1.65
0
0
0
0
TYP
MAX
5.5
5.5
VCC
5.5
5.5
20
10
UNIT
V
V
V
V
V
ns/V
ns/V
TYP
MAX
UNIT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
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 ~ 2.7V
VCC=2.7V ~ 3.6V
VCC=4.5V ~ 5.5V
VCC=1.65V ~ 1.95V
VCC=2.3V ~ 2.7V
VCC=2.7V ~ 3.6V
VCC=4.5V ~ 5.5V
VCC=1.65 ~ 5.5V, IOH=-100μA
VCC=1.65V, IOH=-4mA
VCC=2.3V, IOH=-8mA
VCC=2.7V, IOH=-12mA
VCC=3.0V, IOH=-24mA
VCC=4.5V, IOH=-32mA
VCC=1.65 ~ 5.5V, IOL=100μA
VCC=1.65V, IOL=4mA
VCC=2.3V, IOL=8mA
VCC=2.7V, IOL=12mA
VCC=3.0V, IOL=24mA
VCC=4.5V, IOL=32mA
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MIN
0.65×VCC
1.7
2
0.7×VCC
0.35×VCC
0.7
0.8
0.3×VCC
VCC-0.1
1.2
1.9
2.2
2.3
3.8
0.1
0.45
0.3
0.4
0.55
0.55
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
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
Input Leakage Current
Power OFF Leakage Current
3-State Output OFF-State
Current
Quiescent Supply Current
Additional Quiescent Supply
Current Per Input Pin

CMOS IC
SYMBOL
II(LEAK)
IOFF
IOZ
ICC
∆ICC
TEST CONDITIONS
VCC=5.5V, VIN=5.5V or GND
VCC=0V, VIN or VOUT=5.5V
VCC =5.5V VIN=VIH or VIL,
VOUT=VCC or GND
VCC=5.5V, VIN=VCC or GND, IOUT=0
MIN
VCC=2.3 ~ 5.5V, VIN=VCC-0.6V, IOUT=0
TYP
±0.1
±0.1
MAX
±5
±10
UNIT
μA
μA
±0.1
±10
μA
0.1
10
μA
5
500
μA
TYP
3.0
2.1
2.3
2.0
1.7
3.2
2.2
2.4
2.1
1.6
4.3
2.7
3.4
3.0
2.2
MAX
8.0
5.5
5.5
4.5
4.0
9.4
6.6
6.6
5.3
5.0
9.2
5.5
5.5
5.5
4.2
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SWITCHING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
Propagation Delay From
Input A to Output Y
tPLH / tPHL
3-State Output Enable Time
From Input OE to Output Y
tPZH / tPZL
3-State Output Disable Time
From Input OE to Output Y
tPLZ / tPLH
TEST CONDITIONS
VCC=1.8±0.15V, RL=1KΩ
CL=30pF
VCC=2.5±0.2V, RL=500Ω
VCC=2.7V
CL=50pF,
VCC=3.3±0.3V
RL=500Ω
VCC=5±0.5V
VCC=1.8±0.15V, RL=1KΩ
CL=30pF
VCC=2.5±0.2V, RL=500Ω
VCC=2.7V
CL=50pF,
VCC=3.3±0.3V
RL=500Ω
VCC=5±0.5V
VCC=1.8±0.15V, RL=1KΩ
CL=30pF
VCC=2.5±0.2V, RL=500Ω
VCC=2.7V
CL=50pF,
VCC=3.3±0.3V
RL=500Ω
VCC=5±0.5V
UNISONIC TECHNOLOGIES CO., LTD
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MIN
1.0
0.5
0.5
0.5
0.5
1.0
0.5
0.5
0.5
0.5
1.0
0.5
0.5
0.5
0.5
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
CMOS IC
TEST CIRCUIT AND WAVEFORMS
S
Open
GND
From Output
RL
CL
1.8V±0.15V
2.5V±0.2V
2.7V
3.3V±0.3V
5V±0.5V
VIN
VCC
VCC
2.7V
2.7V
VCC
TEST
tPLH/tPHL
tPHZ/tPZH
tPLZ/tPZL
S
Open
GND
VLOAD
RL
INPUTS
VCC
VLOAD
tR, tF
≤2ns
≤2ns
≤2.5ns
≤2.5ns
≤2.5ns
VM
VLOAD
V∆
CL
RL
VCC/2
VCC/2
1.5V
1.5V
VCC/2
2×VCC
2×VCC
6V
6V
2×VCC
0.15V
0.15V
0.3V
0.3V
0.3V
30pF
30pF
50pF
50pF
50pF
1KΩ
500Ω
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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