Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC125A
CMOS IC
QUADRUPLE BUS BUFFER
GATE WITH 3-STATE OUTPUTS

DESCRIPTION
The U74LVC125A consists of four bus buffers with 3-state output
controlled by enable input ( ΟΕ ), when ΟΕ 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.

FEATURES
* Operation Voltage Range: 1.65~3.6V
* Low Power Dissipation
* Input Accept Voltage to 5.5V

ORDERING INFORMATION
Ordering Number
U74LVC125AG-S14-R
U74LVC125AG-P14-R

Package
SOP-14
TSSOP-14
Packing
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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U74LVC125A
CMOS IC

PIN CONFIGURATION

FUNCTION TABLE (each gate)
INPUT

OUTPUT
ΟΕ
A
Y
L
L
H
L
H
X
L
H
Z
LOGIC DIAGRAM (positive logic)
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
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5~6.5
V
Input Voltage
VIN
-0.5~6.5
V
Output Voltage(active mode)
VOUT
-0.5~VCC+0.5
V
Input Clamp Current(ViN<0)
IIK
-50
mA
Output Clamp Current(VO<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
°С
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
Supply Voltage
VCC
Input Voltage
Output Voltage
Input Rise or Fall Times
Operating Temperature
VIN
VOUT
tR, tF
TA

CONDITIONS
Operating
Data retention only
MIN
1.65
1.5
0
0
TYP
-40
MAX
3.6
UNIT
V
5.5
VCC
8
125
V
V
ns/V
°С
MAX
UNIT
STATIC CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
VCC=1.65V ~ 1.95V
High-Level Input Voltage
VIH
VCC=2.3V ~ 2.7V
VCC=2.7V ~ 3.6V
MIN
0.65×
VCC
1.7
2
TYP
V
V
V
0.35×V
VCC=1.65V ~ 1.95V
Low-Level Input Voltage
VIL
High-Level Output Voltage
VOH
Low-Level Output Voltage
Input Leakage Current
Output OFF-State current
Quiescent Supply Current
Additional Quiescent Supply
Current
Input Capacitance
VOL
II(LEAK)
IOZ
IQ
 IQ
CIN
VCC=2.3V ~ 2.7V
VCC=2.7V ~ 3.6V
VCC=1.65V ~ 3.6V, IOH=-100μA
VCC-0.2
VCC=1.65V, IOH=-4mA
1.29
VCC=2.3V, IOH=-8mA
1.9
VCC=2.7V, IOH=-12mA
2.2
VCC=3V, IOH=-12mA
2.4
VCC=3V, IOH=-24mA
2.3
VCC=1.65V ~ 3.6V, IOL=100μA
VCC=1.65V, IOL=4mA
VCC=2.3V, IOL=8mA
VCC=2.7V, IOL=12mA
VCC=3V, IOL=24mA
VCC=3.6V, VIN=5.5V or GND
VCC=3.6V, VOUT=VCC or GND
VCC=3.6V, VIN=VCC or GND IOUT=0
VCC=2.7V~3.6V, One input at VCC0.6V, other inputs at VCC or GND
VCC=3.3V, VIN=VCC or GND
UNISONIC TECHNOLOGIES CO., LTD
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CC
0.7
0.8
5
V
0.1
0.24
0.3
0.4
0.55
±1
±1
1
V
V
V
V
V
V
V
V
V
V
V
V
V
μA
μA
μA
500
μA
pF
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CMOS IC
DYNAMIC CHARACTERISTICS (TA=25°С, unless otherwise specified)
PARAMETER
SYMBOL
Propagation delay from input
(A) to output (Y)
tPLH/tPHL
Output enable time from input
( ΟΕ ) to output (Y)
tPZL/tPZH
Output disable time from input
( ΟΕ ) to output (Y)
tPLZ/tPHZ

TEST CONDITIONS
VCC= 1.8V±0.15V
VCC= 2.5V±0.2V
VCC= 2.7V
VCC= 3.3V±0.3V
VCC= 1.8V±0.15V
VCC= 2.5V±0.2V
VCC= 2.7V
VCC= 3.3V±0.3V
VCC= 1.8V±0.15V
VCC= 2.V5±0.2V
VCC= 2.7V
VCC= 3.3V±0.3V
MIN
1
1
1
1
1
1
1
1
1
1
1
1
TYP
4.5
2.7
3
2.5
4.3
2.7
3.3
2.4
4.3
2.2
2.5
2.4
MAX
11.8
5.8
5.3
4.6
13.8
6.9
6.4
5.2
10.6
5.1
4.8
4.4
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TYP
7.4
11.3
15
MAX
UNIT
pF
pF
pF
OPERATING CHARACTERISTICS (TA=25°С, unless otherwise specified)
PARAMETER
SYMBOL
Power Dissipation Capacitance
CPD
TEST CONDITIONS
VCC=1.8V, f=10MHz
VCC=2.5V, f=10MHz
VCC=3.3V, f=10MHz
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MIN
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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
2.7V
3.3V±0.3V
VIN
VCC
VCC
2.7V
2.7 V
tR,/tF
≤2ns
≤2ns
≤2.5ns
≤2.5ns
VM
VCC/2
VCC/2
1.5V
1.5V
VLOAD
2* VCC
2* VCC
6V
6V
CL
30pF
30pF
50pF
50pF
RL
1KΩ
500Ω
500Ω
500Ω
V△
0.15V
0.15V
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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