U74LVC2G157 [UTC]
SINGLE 2-LINE TO 1-LINE DATA SELECTOR OR MULTIPLEXER; 单路2号线到1线数据选择器或多路复用器
| 型号： | U74LVC2G157 |
| 厂家： | 
Unisonic Technologies |
| 描述： | SINGLE 2-LINE TO 1-LINE DATA SELECTOR OR MULTIPLEXER |
| 文件： | 总5页 (文件大小：171K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74LVC2G157
CMOS IC
SINGLE 2-LINE TO 1-LINE
DATA SELECTOR OR
MULTIPLEXER
DESCRIPTION
The U74LVC2G157 is a single 2-line to 1-line data selector or
multiplexer which is featured a common strobe (G) input. When the
SOP-8
strobe is high, the output Y is low and is high regardless of the
Y
levels of other inputs. When the strobe is low, a single bit is selected
from one of two sources and is transferred to the output with the true
and complementary data.
This device has power-down protective circuit, preventing
device destruction when it is powered down.
FEATURES
* Operate from 1.65V to 5.5V
* Inputs accept voltages to 5.5V
* Ioff supports partial-power-down mode
* Low power dissipation: ICC=10μA(Max.)
* ±24mA output drive(VCC=3.3V)
* Max tpd at 6ns of 3.3V
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
U74LVC2G157L-S08-T
U74LVC2G157L-S08-R
U74LVC2G157G-S08-T
U74LVC2G157G-S08-R
SOP-8
SOP-8
Tube
Tape Reel
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Copyright © 2012 Unisonic Technologies Co., Ltd
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U74LVC2G157
CMOS IC
PIN CONFIGURATION
FUNCTION TABLE (EACH GATE)
INPUTS
OUTPUT
A
X
L
B
X
X
X
L
Y
L
G
H
A/B
X
Y
H
H
L
L
L
L
L
L
L
L
H
X
X
H
L
H
H
L
H
H
H
Note: H: HIGH voltage level; L: LOW voltage level; X: Don’t care
LOGIC DIAGRAM (positive logic)
7
G
6
A/B
1
A
5
3
Y
Y
2
B
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U74LVC2G157
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VCC
RATINGS
-0.5 ~ +6.5
UNIT
Supply Voltage
Input Voltage
V
V
V
VIN
-0.5 ~ +6.5
Output in the high or low state
Output in the high-impedance or
power-off state
-0.5 ~ VCC+0.5
Output Voltage
VOUT
-0.5 ~ +6.5
V
VCC or GND Current
ICC
IOUT
IIK
±100
±50
mA
mA
mA
mA
°C
Continuous Output Current (VOUT=0 to VCC)
Input Clamp Current (VIN<0)
-50
Output Clamp Current (VOUT<0 )
Storage Temperature Range
IOK
-50
TSTG
-65 ~ +150
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
TEST CONDITIONS
Operating
Data retention only
MIN
TYP
MAX
5.5
UNIT
1.65
V
V
V
V
Supply Voltage
VCC
1.5
Input Voltage
VIN
0
5.5
Output Voltage
VOUT
0
0.65*VCC
1.7
VCC
VCC =1.65V~1.95V
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
VCC =1.65V~1.95V
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
VCC=1.65V
High-Level Input Voltage
Low-Level Input Voltage
VIH
V
V
2
0.7*VCC
0.35*VCC
0.7
0.8
0.3*VCC
-4
VIL
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
ns/V
ns/V
ns/V
°C
VCC=2.3V
-8
High-level Output Current
Low-level Output Current
IOH
VCC=3.0V
-16
-24
-32
4
VCC=3.0V
VCC=4.5V
VCC=1.65V
VCC=2.3V
8
IOL
VCC=3.0V
16
VCC=3.0V
24
VCC=4.5V
32
VCC=1.65V~1.95V, 2.3V~2.7V
20
Input Transition Rise or Fall
Rate
Δt/Δv
VCC=3.0V~3.6V
VCC=4.5V~5.5V
10
5
Operating Temperature
TA
-40
85
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U74LVC2G157
CMOS IC
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
VCC-0.1
1.2
TYP
MAX
UNIT
V
V
CC =1.65V~5.5V, IOH=-100μA
VCC =1.65V, IOH=-4mA
VCC =2.3V, IOH=-8mA
VCC =3.0V, IOH=-16mA
VCC =3.0V, IOH=-24mA
VCC =4.5V, IOH=-32mA
VCC =1.65V~5.5V, IOH=-100μA
VCC =1.65V, IOH=4mA
VCC =2.3V, IOH=8mA
1.9
High-Level Output Voltage
Low-Level Output Voltage
VOH
2.2
2.3
3.8
0.1
0.45
0.3
VOL
V
VCC =3.0V, IOH=16mA
VCC =3.0V, IOH=24mA
VCC =4.5V, IOH=32mA
0.4
0.55
0.55
±5
Input Leakage Current
II(LEAK) VCC =0V~5.5V, VIN=5.5V or GND
IOFF VCC =0V, VIN or VOUT=5.5V
CC =1.65V~5.5V,
μA
μA
Power OFF Leakage Current
±10
V
Quiescent Supply Current
IQ
VIN=5.5V or GND, IOUT=0
10
μA
Additional Quiescent Supply
Current
VCC =3V~5.5V, One input at VCC-0.6V,
other inputs at VCC or GND
VCC =3.3V, VIN=VCC or GND
ΔIQ
500
μA
Input Capacitance
CIN
5
pF
SWITCHING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
VCC =1.65V~1.95V
MIN
4.4
2.1
2
TYP
MAX
14
8
UNIT
ns
Propagation delay from input
(A or B) to output(Y or
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
VCC =1.65V~1.95V
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
VCC =1.65V~1.95V
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
tPLH/tPHL
6
)
Y
1.4
4.9
2.5
2.1
1.6
4.2
2
4
16
9
Propagation delay from input
) to output(Y or
tPLH/tPHL
ns
ns
(
)
Y
6
A/B
4
14
8
Propagation delay from input
) to output(Y or
tPLH/tPHL
(
)
1.6
1.3
6
Y
G
4
OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
CC=1.8V, f=10MHz
MIN
TYP
35
MAX
UNIT
pF
V
VCC=2.5V, f=10MHz
VCC=3.3V, f=10MHz
VCC=5V, f=10MHz
35
pF
Power Dissipation
Capacitance
Cpd
37
pF
40
pF
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U74LVC2G157
CMOS IC
TEST CIRCUIT AND WAVEFORMS
From Output
CL
RL
TEST CIRCUIT
Inputs
VCC
VM
CL
RL
VIN
VCC
VCC
3.0V
VCC
tR, tF
≤2ns
≤2ns
VCC =1.65V~1.95V
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
VCC/2
VCC/2
1.5V
30pF
30pF
50pF
50pF
1KΩ
500Ω
500Ω
500Ω
≤2.5ns
≤2.5ns
VCC/2
Note: 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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