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U74AHC157_15 [UTC]

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS;
U74AHC157_15
型号： U74AHC157_15
厂家： Unisonic Technologies    Unisonic Technologies
描述：

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS
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UNISONIC TECHNOLOGIES CO., LTD  
U74AHC157  
CMOS IC  
QUADRUPLE 2-LINE TO 1-LINE  
DATA SELECTORS /  
MULTIPLEXERS  
„
DESCRIPTION  
The U74AHC157 is  
a
quadruple 2-line to 1-line data  
selector/multiplexer. When G is high all outputs are low. When G is  
low a 4-bit word is selected from one of two sources and is routed to  
the four outputs. The device provides true data.  
„
FEATURES  
* Wide supply voltage range from 2V to 5.5V  
* Max tPD of 4.1ns from A or B to Y at 5V, CL=15pF  
* Low power consumption, ICC = 4 μA (MAX) at 5.5V  
* ±8 mA output driver at 5V  
„
ORDERING INFORMATION  
Ordering Number  
Lead Free  
Package  
Packing  
Halogen Free  
U74AHC157L-P16-R  
U74AHC157L-P16-T  
U74AHC157G-P16-R  
U74AHC157G-P16-T  
TSSOP-16  
TSSOP-16  
Tape Reel  
Tube  
www.unisonic.com.tw  
Copyright © 2011 Unisonic Technologies Co., Ltd  
1 of 6  
QW-R502-626.A  
U74AHC157  
CMOS IC  
„
PIN CONFIGURATION  
„
FUNCTION TABLE  
INPUTS  
OUTPUTS  
Y
G
A
B
A /B  
H
L
L
L
L
X
L
L
H
H
X
L
H
X
X
X
X
X
L
L
L
H
L
H
H
„
LOGIC DIAGRAM  
UNISONIC TECHNOLOGIES CO., LTD  
2 of 6  
QW-R502-626.A  
www.unisonic.com.tw  
U74AHC157  
CMOS IC  
„
ABSOLUTE MAXIMUM RATING (TA =25°C , unless otherwise specified)  
PARAMETER  
SYMBOL  
VCC  
RATINGS  
-0.5~7  
UNIT  
V
Supply Voltage Range  
Input Voltage Range  
Output Voltage Range  
VIN  
-0.5~7  
V
VOUT  
IIK  
-0.5~VCC +0.5  
-20  
V
Input Clamp Current (VIN<0)  
Output Clamp Current (VOUT<0, or VOUT>VCC  
Output Current  
mA  
mA  
mA  
mA  
°C  
)
IOK  
±20  
IOUT  
ICC  
±25  
VCC or GND Current  
±50  
Storage Temperature  
TSTG  
-65 ~ +150  
Note: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.  
Note: 2. 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 COMDITIONS  
PARAMETER  
Supply Voltage  
SYMBOL  
VCC  
CONDITIONS  
MIN  
2
TYP  
MAX UNIT  
5.5  
V
VCC = 2V  
VCC = 3V  
1.5  
2.1  
3.85  
High-Level Input Voltage  
Low-Level Input Voltage  
VIH  
VIL  
V
VCC = 5.5V  
VCC = 2V  
VCC = 3V  
0.5  
0.9  
1.65  
5.5  
VCC  
-50  
-4  
V
VCC = 5.5V  
Input Voltage  
VIN  
0
0
V
V
Output Voltage  
VOUT  
VCC = 2V  
VCC = 3.3±0.3V  
CC = 5±0.5V  
μA  
High-level Output Current  
Low-level Output Current  
IOH  
mA  
μA  
V
-8  
VCC = 2V  
50  
IOL  
VCC = 3.3±0.3V  
4
mA  
V
CC = 5±0.5V  
VCC = 3.3±0.3V  
CC = 5±0.5V  
8
100  
20  
Input Transition Rise or Fall Rate  
Operating Temperature  
Δt/Δv  
ns/V  
°C  
V
TA  
-40  
85  
„
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)  
PARAMETER  
SYMBOL  
VOH  
TEST CONDITIONS  
IOH = -50 μA, VCC = 2V  
MIN  
1.9  
TYP  
2
MAX UNIT  
IOH = -50 μA, VCC = 3V  
IOH = -50 μA, VCC = 4.5V  
IOH = -4 mA, VCC = 3V  
2.9  
3
High-Level Output Voltage  
Low-Level Output Voltage  
V
4.4  
4.5  
2.58  
3.94  
I
OH = -8 mA, VCC = 4.5V  
IOH = 50 μA, VCC = 2V  
IOH = 50 μA, VCC = 3V  
IOH = 50 μA, VCC = 4.5V  
IOH = 4 mA, VCC = 3V  
0.1  
0.1  
VOL  
V
0.1  
0.36  
0.36  
I
OH = 8 mA, VCC = 4.5V  
Input Leakage Current  
(A or B inputs)  
II(LEAK) VIN = 5.5V or GND, VCC = 0 to 5.5V  
±0.1  
μA  
Quiescent Supply Current  
Input Capacitance  
ICC  
VIN = VCC or GND, IOUT = 0, VCC = 5.5V  
VIN = VCC or GND, VCC=5V  
4
μA  
CIN  
2
10  
pF  
UNISONIC TECHNOLOGIES CO., LTD  
3 of 6  
QW-R502-626.A  
www.unisonic.com.tw  
U74AHC157  
CMOS IC  
„
SWITCHING CHARACTERISTICS  
VCC = 3.3V ± 0.3V, TA =25°C  
PARAMETER  
SYMBOL  
tPLH  
TEST CONDITIONS  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
MIN TYP MAX UNIT  
6.2 9.7  
ns  
8.7 13.2  
Propagation delay from input A or B to output Y, tpd  
Propagation delay from input A / B to output Y, tpd  
Propagation delay from input G to output Y, tpd  
6.2 9.7  
ns  
tPHL  
tPLH  
tPHL  
tPLH  
tPHL  
8.7 13.2  
8.4 13.2  
Ns  
10.9 16.7  
8.4 13.2  
Ns  
10.9 16.7  
8.7 13.6  
Ns  
11.2 17.1  
8.7 13.6  
Ns  
11.2 17.1  
VCC = 5V ± 0.5V, TA =25°C  
PARAMETER  
SYMBOL  
tPLH  
TEST CONDITIONS  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
CL=15pF, RL=1kΩ  
CL=50pF, RL=1kΩ  
MIN TYP MAX UNIT  
4.1 6.4  
ns  
5.6 8.4  
Propagation delay from input A or B to output Y, tpd  
Propagation delay from input A / B to output Y, tpd  
Propagation delay from input G to output Y, tpd  
4.1 6.4  
ns  
tPHL  
tPLH  
tPHL  
tPLH  
tPHL  
5.6 8.4  
5.3 8.1  
ns  
6.8 10.1  
5.3 8.1  
ns  
6.8 10.1  
5.6 8.6  
ns  
7.1 10.6  
5.6 8.6  
ns  
7.1 10.6  
„
OPERATING CHARACTERISTICS (TA =25°C)  
PARAMETER  
Power dissipation capacitance  
SYMBOL  
CPD  
TEST CONDITIONS  
RATINGS  
11  
UNIT  
pF  
VCC = 5V, f=1MHz, No load  
UNISONIC TECHNOLOGIES CO., LTD  
4 of 6  
QW-R502-626.A  
www.unisonic.com.tw  
U74AHC157  
CMOS IC  
„
TEST CIRCUIT AND WAVEFORMS  
TEST  
tPLH/tPHL  
tPLZ/tPZL  
tPHZ/tPZH  
S1  
Open  
VLOAD  
GND  
Input  
VCC  
VM  
VLOAD  
VCC  
CL  
RL  
VΔ  
VIN  
tR, tF  
15pF  
50pF  
15pF  
50pF  
3.3V±0.3V  
5V±0.5V  
VCC  
≤3ns  
VCC/2  
VCC/2  
1kΩ  
1kΩ  
0.3V  
0.5V  
VCC  
≤3ns  
VCC  
tW  
VIN  
Input  
VM  
VM  
0
V
Pulse Duration  
Timing Input  
VM  
tSU  
tH  
VIN  
0V  
VM  
Data Input  
VM  
Setup and Hold Times  
UNISONIC TECHNOLOGIES CO., LTD  
5 of 6  
QW-R502-626.A  
www.unisonic.com.tw  
U74AHC157  
CMOS IC  
„
TEST CIRCUIT AND WAVEFORMS(Cont.)  
Notes: 1. CL includes probe and jig capacitance.  
2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, 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.  
UNISONIC TECHNOLOGIES CO., LTD  
6 of 6  
QW-R502-626.A  
www.unisonic.com.tw  

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