Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74AUC1G126
CMOS IC
SINGLE BUS BUFFER GATE
WITH 3-STATE OUTPUT

DESCRIPTION
The U74AUC1G126 is single bus buffer gate with 3-state output.
The output is disabled When the output enable (OE) is low. When
OE is high, true data is passed from A input to the Y output.
This device has power-down protective circuit, preventing device
destruction when it is powered down.

FEATURES
* Operate from 0.8V to 2.7V
* Low power dissipation: ICC=10μA (Max.)
* ±8mA Output Driver : VCC=1.8V
* Ioff Supports partial-Power-Down Mode Operation

ORDERING INFORMATION
Ordering Number
U74AUC1G126G-AE5-R
U74AUC1G126G-AL5-R

Package
SOT-23-5
SOT-353
Packing
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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U74AUC1G126

PIN CONFIGURATION

FUNCTION TABLE
CMOS IC
INPUT(OE)
INPUT(A)
OUTPUT(Y)
H
H
H
H
L
L
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
Supply Voltage
Input Voltage
RATINGS
UNIT
-0.5 ~ +3.6
V
-0.5 ~ +3.6
V
Enable mode
-0.5 ~ VCC + 0.5
V
Output Voltage
VOUT
Disable mode
-0.5 ~ +3.6
V
Power-down mode
-0.5 ~ +3.6
V
VCC or GND Current
ICC
±100
mA
Continuous Output Current
IOUT
VOUT=0 ~ VCC
±20
mA
Input Clamp Current
IIK
VIN<0
-50
mA
Output Clamp Current
IOK
VOUT>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.

TEST CONDITIONS
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Transition Rise or Fall
Rate

SYMBOL
VCC
VIN
SYMBOL
VCC
VIN
VOUT
TA
∆t/∆v
TEST CONDITIONS
Operating
High or low state
MIN
0.8
0
0
-40
TYP
MAX
2.7
3.6
VCC
85
20
10
3
UNIT
V
V
V
°C
ns/V
ns/V
ns/V
MAX
±0.1
0.3
0.4
0.45
0.6
±5
±10
UNIT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
μA
μA
±0.1
±10
μA
0.1
10
μA
VCC=0.8V ~ 1.6V
VCC=1.65V ~ 1.95V
VCC=2.3V ~ 2.7V
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
High-level Input Voltage
VIH
Low-level Input Voltage
VIL
High-Level Output Voltage
Low-Level Output Voltage
Input Leakage Current
Power OFF Leakage Current
3-state Output OFF-state
Current
VOH
VOL
II(LEAK)
Ioff
IOZ
Quiescent Supply Current
ICC
Input Capacitance
output Capacitance
CI
CO
TEST CONDITIONS
VCC=0.8V
VCC=1.1V ~ 1.95V
VCC=2.3V ~ 2.7V
VCC=0.8V
VCC=1.1V ~ 1.95V
VCC=2.3V ~ 2.7V
VCC=0.8 ~ 2.7V, IOH=-100μA
VCC=0.8V, IOH=-0.7mA
VCC=1.1V, IOH=-3mA
VCC=1.4V,IOH=-5mA
VCC=1.65V, IOH=-8mA
VCC=2.3V, IOH=-9mA
VCC=0.8 ~ 2.7V, IOL=100μA
VCC=0.8V, IOL=0.7mA
VCC=1.1V, IOL=3mA
VCC=1.4V, IOL=5mA
VCC=1.65V, IOL=8mA
VCC=2.3V, IOL=9mA
VCC=2.7V, VIN= VCC or GND
VCC=0V, VIN or VOUT=2.7V
VCC =2.7V, VOUT=VCC or GND
VCC=0.8V to 2.7V,
VIN=VCC or GND, IOUT=0
VCC=2.5V, VIN=VCC or GND
VCC=2.5V, VIN=VCC or GND
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MIN
VCC
0.65×VCC
1.7
TYP
0
0.35×VCC
0.7
VCC-0.1
0.55
0.8
1
1.2
1.8
0.2
0.25
2.5
5.5
pF
pF
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SWITCHING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
Propagation delay from input
A to output Y
3-state output enable time
from input ΟΕ to output Y
3-state output disable time
from input ΟΕ to output Y

CMOS IC
SYMBOL
tPLH / tPHL
tPZH / tPZL
tPLZ / tPLH
TEST CONDITIONS
VCC=0.8V
VCC=1.2±0.1V
CL=15pF,
VCC=1.5±0.1V
RL=2kΩ
VCC=1.8±0.15V
VCC=2.5±0.2V
CL=30pF,
VCC=1.8±0.15V
RL=1kΩ
CL=30pF,
VCC=2.5±0.2V
RL=500Ω
VCC=0.8V
VCC=1.2±0.1V
CL=15pF,
VCC=1.5±0.1V
RL=2kΩ
VCC=1.8±0.15V
VCC=2.5±0.2V
CL=30pF,
VCC=1.8±0.15V
RL=1kΩ
CL=30pF,
VCC=2.5±0.2V
RL=500Ω
VCC=0.8V
VCC=1.2±0.1V
CL=15pF,
VCC=1.5±0.1V
RL=2kΩ
VCC=1.8±0.15V
VCC=2.5±0.2V
CL=30pF,
VCC=1.8±0.15V
RL=1kΩ
CL=30pF,
VCC=2.5±0.2V
RL=500Ω
MIN
0.8
0.6
0.6
0.5
1
TYP
4.5
MAX
1
1.5
ns
0.9
ns
4.9
0.7
0.7
0.3
0.3
1.1
ns
ns
ns
ns
ns
0.9
1.6
ns
0.9
ns
4.9
2.2
1.8
1.6
1
1.3
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2.4
2.6
ns
1
ns
OPERATING CHARACTERISTICS (f=10MHz, TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
Power Dissipation
Capacitance
(Outputs enabled)
CPD
Power Dissipation
Capacitance
(Outputs Disabled)
CPD
TEST CONDITIONS
VCC=0.8V
VCC=1.2V
VCC=1.5V
VCC=1.8V
VCC=2.5V
VCC=0.8V
VCC=1.2V
VCC=1.5V
VCC=1.8V
VCC=2.5V
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MIN
TYP
14
14
14
15
16
1.5
1.5
1.5
2
2.5
MAX
UNIT
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
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
CMOS IC
TEST CIRCUIT AND WAVEFORMS
VCC
0.8V
1.2V±0.1V
1.5V±0.1V
1.8V±0.15V
2.5V±0.2V
1.8V±0.15V
2.5V±0.2V
CL
15pF
15pF
15pF
15pF
15pF
30pF
30pF
RL
2kΩ
2kΩ
2kΩ
2kΩ
2kΩ
1kΩ
500Ω
V△
0.1V
0.1V
0.1V
0.15V
0.15V
0.15V
0.15V
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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