Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC2G125
CMOS IC
DUAL BUS BUFFER GATE
WITH 3-STATE OUTPUTS

DESCRIPTION
The U74LVC2G125 consists of two bus buffers with 3-state
output controlled by enable input (n OE ), when n OE is high, the
output is disable.
Inputs can be driven from either 3.3V or 5V devices, so the
device can be used in a mix 3.3V/5V system.
This device is full specified for partial power-down protective
circuit, preventing the backflow current through the device when it
is powered down.

FEATURES
* Operation Voltage Range: 1.65~5.5V
* Low Power Dissipation
* Input Accept Voltage to 5.5V

ORDERING INFORMATION
Ordering Number
U74LVC2G125G-P08-R
U74LVC2G125G-SM1-R

Package
TSSOP-8
MSOP-8
Packing
Tape Reel
Tape Reel
MARKING
MSOP-8
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Copyright © 2016 Unisonic Technologies Co., Ltd
TSSOP-8
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U74LVC2G125

CMOS IC
PIN CONFIGURATION
1OE 1

VCC
1A
2
7
2OE
2Y
3
6
1Y
GND
4
5
2A
FUNCTION TABLE (each gate)
INPUT

8
OUTPUT
n OE
A
Y
L
L
H
L
H
X
L
H
Z
LOGIC DIAGRAM (positive logic)
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QW-R502-136.D
U74LVC2G125

CMOS IC
ABSOLUTE MAXIMUM RATING (unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
RATINGS
UNIT
VCC
-0.5~6.5
V
VIN
-0.5~6.5
V
Enable mode
VOUT
-0.5~VCC+0.5
V
Output Voltage
Disable mode
VOUT
-0.5~6.5
V
Power-down mode
VOUT
-0.5~6.5
V
Input Clamp Current (ViN<0)
IIK
-50
mA
Output Clamp Current (VOUT<0)
IOK
-50
mA
Output Current
IOUT
±50
mA
VCC or GND Current
ICC
±100
mA
Power Dissipation
PD
500
mW
Storage Temperature
TSTG
-65 ~ +150
°C
Note 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. 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
Output Voltage
Input Transition Rise or Fall Rate
Operating Temperature

SYMBOL
TEST CONDITIONS
VCC
Operating
VIN
VCC=1.65V~5.5V; Enable mode
VOUT
VCC=1.65V~5.5V; Disable mode
VCC=0V; Power-down mode
VCC=1.65~2.7V
tR, tF
VCC=2.7~5.5V
TA
MIN
1.65
0
0
0
0
0
0
-40
TYP
MAX
5.5
5.5
VCC
5.5
5.5
20
10
85
UNIT
V
V
V
V
V
ns/V
ns/V
°C
MIN
TYP
MAX
UNIT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
STATIC CHARACTERISTICS (TA=25°C)
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 = 1.65V ~ 5.5V, IOH=-100μA
VCC = 1.65V, IOH=-4mA
VCC = 2.3V, IOH=-8mA
VCC = 2.7V, IOH=-12mA
VCC = 3V, IOH=-24mA
VCC = 4.5V, IOH=-32mA
VCC = 1.65V ~ 5.5V, IOL=100μA
VCC = 1.65V, IOL=4mA
VCC = 2.3V, IOL=8mA
VCC = 2.7V, IOL=12mA
VCC = 3V, IOL=24mA
VCC = 4.5V, IOL=32mA
UNISONIC TECHNOLOGIES CO., LTD
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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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U74LVC2G125

STATIC CHARACTERISTICS (Cont.)
PARAMETER
Input Leakage Current
Output OFF-State Current
Power OFF Leakage Current
Quiescent Supply Current
Additional Quiescent Supply
Current
Input Capacitance

CMOS IC
SYMBOL
II(LEAK)
IOZ
IOFF(LEAK)
IQ
 IQ
CIN
MIN
TYP
±0.1
±0.1
±0.1
0.1
MAX
±5
±10
±10
10
UNIT
μA
μA
μA
μA
5
500
μA
2
pF
DYNAMIC CHARACTERISTICS (TA=25℃)
PARAMETER
SYMBOL
Propagation Delay From Input (A)
to Output(Y)
tPLH/tPHL
Propagation Delay From Input
(n ΟΕ ) to Output(Y)
tPZL/tPZH
Propagation Delay From Input
(n ΟΕ ) to Output(Y)
tPLZ/tPHZ

TEST CONDITIONS
VCC= 5.5V, VIN=5.5V or GND
VCC= 3.6V, VOUT=VCC or GND
VCC= 0V, VIN or VOUT =5.5V
VCC= 5.5V, VIN=VCC or GND, IOUT=0
VCC= 2.3V ~ 5.5V, One input at
VCC-0.6V, other inputs at VCC or GND
VIN=VCC or GND
TEST CONDITIONS
VCC =1.8V±0.15
VCC =2.5V±0.2
VCC =2.7V
VCC =3.3V±0.3
VCC =5V±0.5
VCC =1.8V±0.15
VCC =2.5V±0.2
VCC =2.7V
VCC =3.3V±0.3
VCC =5V±0.5
VCC =1.8V±0.15
VCC =2.5V±0.2
VCC =2.7V
VCC =3.3V±0.3
VCC =5V±0.5
MIN
1
0.5
1
0.5
0.5
1.5
1
1.5
0.5
0.5
1
0.5
1
1
0.5
TYP
3.7
2.5
2.7
2.3
1.9
4.3
2.8
3.3
2.4
2
3.5
1.8
2.7
2.7
1.8
MAX
9.1
4.8
4.8
4.3
3.7
9.9
5.6
5.7
4.7
3.8
11.6
5.8
4.8
4.6
3.4
UNIT
MIN
TYP
18
5
MAX
UNIT
ns
ns
ns
OPERATING CHARACTERISTICS
PARAMETER
Power Dissipation Capacitance
SYMBOL
Cpd
TEST CONDITIONS
Output Enable, f=10MHz
Output Disable, f=10MHz
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pF
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U74LVC2G125

CMOS IC
TEST CIRCUIT AND WAVEFORMS
Note: CL includes probe and jig capacitance.
VCC
1.8V±0.15V
2.5V±0.2V
2.7V
3.3V±0.3V
5V±0.5V
VIN
VCC
VCC
2.7V
2.7 V
VCC
tR, tF
≤2ns
≤2ns
≤2.5ns
≤2.5ns
≤2.5ns
VM
VCC/2
VCC/2
1.5V
1.5V
VCC/2
VEXT
2×VCC
2×VCC
6V
6V
2×VCC
CL
30pF
30pF
50pF
50pF
50pF
RL
1KΩ
500Ω
500Ω
500Ω
500Ω
V△
0.15V
0.15V
0.3V
0.3V
0.3V
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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