UNISONIC TECHNOLOGIES CO., LTD
U74LVC1G126
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.
CMOS IC
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
Lead Free
U74LVC1G126L-AE5-R
U74LVC1G126L-AF5-R
U74LVC1G126L-AL5-R
Halogen Free
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
5
3L6
1
2
3
4
G: Halogen Free
L:Lead Free
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QW-R502-398.C
U74LVC1G126
PIN CONFIGURATION
V
CC
5
Y
4
CMOS IC
1
OE
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
IEC Logic Symbol
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U74LVC1G126
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
V
CC
V
IN
CMOS IC
RATINGS
UNIT
Supply Voltage
-0.5 ~ +6.5
V
Input Voltage
-0.5 ~ +6.5
V
V
Enable mode
-0.5 ~ V
CC
+ 0.5
Output Voltage
Disable mode
V
OUT
-0.5 ~ +6.5
V
Power-down mode
-0.5 ~ +6.5
V
V
CC
or GND Current
I
CC
±100
mA
Continuous Output Current (V
OUT
=0 to V
CC)
I
OUT
±50
mA
Input Clamp Current (V
IN
<0)
I
IK
-50
mA
Output Clamp Current (V
OUT
>V
CC
or V
OUT
<0)
I
OK
±50
mA
300
SOT-23-5
Power Dissipation
mW
P
D
SOT-25
360
(T
A
=-40°C ~ +125°C)
SOT-353
250
Operating Temperature
T
OPR
-40 ~ +125
°C
Storage Temperature
T
STG
-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
Supply Voltage
Input Voltage
Output Voltage
Input Transition Rise or Fall Rate
SYMBOL
TEST CONDITIONS
V
CC
Operating
V
IN
V
CC
=1.65V ~ 5.5V; Enable mode
V
OUT
V
CC
=1.65V ~ 5.5V; Disable mode
V
CC
=0V; Power-Down Mode
V
CC
=1.65V ~ 2.7V
t
R
/ t
F
V
CC
=2.7V ~ 5.5V
MIN
1.65
0
0
0
0
TYP
MAX
5.5
5.5
V
CC
5.5
5.5
20
10
UNIT
V
V
V
V
V
ns/V
ns/V
ELECTRICAL CHARACTERISTICS
(T
A
=25°C , unless otherwise specified)
PARAMETER
High-Level Input Voltage
SYMBOL
V
IH
TEST CONDITIONS
V
CC
=1.65V ~ 1.95V
V
CC
=2.3V ~ 2.7V
V
CC
=2.7V ~ 3.6V
V
CC
=4.5V ~ 5.5V
V
CC
=1.65V ~ 1.95V
V
CC
=2.3V ~ 2.7V
V
CC
=2.7V ~ 3.6V
V
CC
=4.5V ~ 5.5V
V
CC
=1.65 ~ 5.5V
I
OH
=-100μA
I
OH
=-4mA
V
CC
=1.65V
I
OH
=-8mA
V
CC
=2.3V
I
OH
=-12mA
V
CC
=2.7V
I
OH
=-24mA
V
CC
=3.0V
I
OH
=-32mA
V
CC
=4.5V
V
CC
=1.65 ~ 5.5V
I
OL
=100μA
I
OL
=4mA
V
CC
=1.65V
I
OL
=8mA
V
CC
=2.3V
I
OL
=12mA
V
CC
=2.7V
I
OL
=24mA
V
CC
=3.0V
I
OL
=32mA
V
CC
=4.5V
MIN
0.65*V
CC
TYP
MAX
1.7
2
0.7*V
CC
0.35*V
CC
Low-Level Input Voltage
V
IL
0.7
0.8
0.3*V
CC
V
CC
-0.1
High-Level Output Voltage
V
OH
1.2
1.9
2.2
2.3
3.8
0.1
0.45
0.3
0.4
0.55
0.55
Low-Level Output Voltage
V
OL
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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U74LVC1G126
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
Input Leakage Current
I
I(LEAK)
V
IN
=5.5V or GND, V
CC
=5.5V
Power OFF Leakage Current
I
OFF
V
IN
or V
OUT
=5.5V, V
CC
=0V
V
IN
=V
IH
or V
IL
, V
OUT
=V
CC
or GND,
3-State Output OFF-State
I
OZ
Current
V
CC
=5.5V
Quiescent Supply Current
I
CC
V
IN
=V
CC
or GND, I
OUT
=0, V
CC
=5.5V
Additional Quiescent Supply
ΔI
CC
V
CC
=2.3 ~ 5.5V, V
IN
=V
CC
-0.6V, I
OUT
=0
Current Per Input Pin
MIN
TYP
±0.1
±0.1
±0.1
0.1
5
CMOS IC
MAX
±5
±10
±10
10
500
UNIT
μA
μA
μA
μA
μA
SWITCHING CHARACTERISTICS
(T
A
=25°С)
PARAMETER
Propagation Delay From
Input A to Output Y
SYMBOL
TEST CONDITIONS
V
CC
=1.8±0.15V, R
L
=1KΩ
C
L
=30pF
V
CC
=2.5±0.2V, R
L
=500Ω
V
CC
=2.7V
C
L
=50pF,
V
CC
=3.3±0.3V
R
L
=500Ω
V
CC
=5±0.5V
V
CC
=1.8±0.15V, R
L
=1KΩ
C
L
=30pF
V
CC
=2.5±0.2V, R
L
=500Ω
V
CC
=2.7V
C
L
=50pF,
V
CC
=3.3±0.3V
R
L
=500Ω
V
CC
=5±0.5V
V
CC
=1.8±0.15V, R
L
=1KΩ
C
L
=30pF
V
CC
=2.5±0.2V, R
L
=500Ω
V
CC
=2.7V
C
L
=50pF,
V
CC
=3.3±0.3V
R
L
=500Ω
V
CC
=5±0.5V
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
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
t
PLH
/ t
PHL
3-State Output Enable Time
From Input OE to Output Y
t
PZH
/ t
PZL
3-State Output Disable Time
From Input OE to Output Y
t
PLZ
/ t
PLH
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U74LVC1G126
TEST CIRCUIT AND WAVEFORMS
S
V
LOAD
Open
GND
R
L
TEST
t
PLH
/t
PHL
t
PHZ
/t
PZH
t
PLZ
/t
PZL
S
Open
GND
V
LOAD
CMOS IC
From Output
C
L
R
L
V
CC
1.8V±0.15V
2.5V±0.2V
2.7V
3.3V±0.3V
5V±0.5V
INPUTS
V
IN
V
CC
V
CC
2.7V
2.7V
V
CC
t
R
, t
F
≤2ns
≤2ns
≤2.5ns
≤2.5ns
≤2.5ns
V
M
V
CC
/2
V
CC
/2
1.5V
1.5V
V
CC
/2
V
LOAD
2 x V
CC
2 x V
CC
6V
6V
2 x V
CC
V
Δ
0.15V
0.15V
0.3V
0.3V
0.3V
C
L
30pF
30pF
50pF
50pF
50pF
R
L
1KΩ
500Ω
500Ω
500Ω
500Ω
Note: C
L
includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: P
RR
≤10MHz,
Z
O
= 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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