U74AUC1G126 (Unisonic Technologies)
SINGLE BUS BUFFER GATE

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UNISONIC TECHNOLOGIES CO., LTD
U74AUC1G126
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
CMOS IC
Packing
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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U74AUC1G126 (Unisonic Technologies)
SINGLE BUS BUFFER GATE

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U74AUC1G126
PIN CONFIGURATION
CMOS IC
FUNCTION TABLE
INPUT(OE)
INPUT(A)
OUTPUT(Y)
HHH
HL L
LXZ
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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U74AUC1G126 (Unisonic Technologies)
SINGLE BUS BUFFER GATE

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U74AUC1G126
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
TEST CONDITIONS
RATINGS
UNIT
Supply Voltage
VCC
-0.5 ~ +3.6
V
Input Voltage
Output Voltage
VIN
VOUT
Enable mode
Disable mode
-0.5 ~ +3.6
-0.5 ~ VCC + 0.5
-0.5 ~ +3.6
V
V
V
Power-down mode
-0.5 ~ +3.6
V
VCC or GND Current
Continuous Output Current
ICC
IOUT
VOUT=0 ~ VCC
±100
±20
mA
mA
Input Clamp Current
Output Clamp Current
IIK VIN<0
IOK VOUT>VCC or VOUT<0
-50
-50
mA
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.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Transition Rise or Fall
Rate
SYMBOL
VCC
VIN
VOUT
TA
t/v
TEST CONDITIONS
Operating
High or low state
VCC=0.8V ~ 1.6V
VCC=1.65V ~ 1.95V
VCC=2.3V ~ 2.7V
MIN TYP MAX UNIT
0.8 2.7 V
0 3.6 V
0
VCC
V
-40 85 °C
20 ns/V
10 ns/V
3 ns/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
Input Leakage Current
Power OFF Leakage Current
3-state Output OFF-state
Current
Quiescent Supply Current
Input Capacitance
output Capacitance
SYMBOL
VIH
VIL
VOH
VOL
II(LEAK)
Ioff
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
IOZ VCC =2.7V, VOUT=VCC or GND
ICC
VCC=0.8V to 2.7V,
VIN=VCC or GND, IOUT=0
CI VCC=2.5V, VIN=VCC or GND
CO VCC=2.5V, VIN=VCC or GND
MIN
VCC
0.65×VCC
1.7
VCC-0.1
0.8
1
1.2
1.8
TYP
0.55
0.25
±0.1
MAX
0
0.35×VCC
0.7
0.2
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
2.5 pF
5.5 pF
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U74AUC1G126 (Unisonic Technologies)
SINGLE BUS BUFFER GATE

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U74AUC1G126
CMOS IC
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
SYMBOL
tPLH / tPHL
tPZH / tPZL
tPLZ / tPLH
TEST CONDITIONS
VCC=0.8V
CL=15pF,
RL=2k
VCC=1.2±0.1V
VCC=1.5±0.1V
VCC=1.8±0.15V
VCC=2.5±0.2V
CL=30pF,
RL=1k
CL=30pF,
RL=500
VCC=1.8±0.15V
VCC=2.5±0.2V
VCC=0.8V
CL=15pF,
RL=2k
VCC=1.2±0.1V
VCC=1.5±0.1V
VCC=1.8±0.15V
VCC=2.5±0.2V
CL=30pF,
RL=1k
VCC=1.8±0.15V
CL=30pF,
RL=500
VCC=2.5±0.2V
VCC=0.8V
CL=15pF,
RL=2k
VCC=1.2±0.1V
VCC=1.5±0.1V
VCC=1.8±0.15V
VCC=2.5±0.2V
CL=30pF,
RL=1k
CL=30pF,
RL=500
VCC=1.8±0.15V
VCC=2.5±0.2V
MIN
0.8
0.6
0.6
0.5
1
0.9
0.7
0.7
0.3
0.3
1.1
0.9
2.2
1.8
1.6
1
1.3
1
TYP
4.5
1
1.5
4.9
0.9
1.6
4.9
2.4
2.6
MAX
OPERATING CHARACTERISTICS (f=10MHz, TA =25°C , unless otherwise specified)
PARAMETER
Power Dissipation
Capacitance
(Outputs enabled)
Power Dissipation
Capacitance
(Outputs Disabled)
SYMBOL
CPD
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
MIN TYP MAX
14
14
14
15
16
1.5
1.5
1.5
2
2.5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
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U74AUC1G126 (Unisonic Technologies)
SINGLE BUS BUFFER GATE

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U74AUC1G126
TEST CIRCUIT AND WAVEFORMS
CMOS IC
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
2k
2k
2k
2k
2k
1k
500
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 = 50.
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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