Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74HC157
CMOS IC
QUADRUPLE 2-LINE TO 1-LINE
DATA SELECTORS /
MULTIPLEXERS
„
SOP-16
DESCRIPTION
The U74HC157 is a quadruple 2-line to 1-line data
selectors/multiplexers. 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
TSSOP-16
* Wide supply voltage range from 2V to 6V
* Typical tPD at 11ns from A or B to Y at 6V, CL=50pF
* Low power consumption, ICC = 8 μA (MAX) at 6V
* ±6 mA output driver at 5V
* Low Input Current of 0.1uA Max
„
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74HC157L-S16-R
U74HC157G-S16-R
U74HC157L-S16-T
U74HC157G-S16-T
U74HC157L-P16-R
U74HC157G-P16-R
U74HC157L-P16-T
U74HC157G-P16-T
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
Package
Packing
SOP-16
SOP-16
TSSOP-16
TSSOP-16
Tape Reel
Tube
Tape Reel
Tube
1 of 6
QW-R502-812.A
U74HC157
CMOS IC
„
PIN CONFIGURATION
„
FUNCTION TABLE
INPUTS
G
H
L
L
L
L
„
A/B
X
L
L
H
H
OUTPUTS
A
B
Y
X
L
H
X
X
X
X
X
L
H
L
L
H
L
H
LOGIC DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R502-812.A
U74HC157
„
CMOS IC
ABSOLUTE MAXIMUM RATING (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage Range
VCC
-0.5~7
V
Input Clamp Current (VIN<0)
IIK
±20
mA
Output Clamp Current (VOUT<0, or VOUT>VCC)
IOK
±20
mA
Output Current
IOUT
±35
mA
VCC or GND Current
ICC
±70
mA
Storage Temperature
TSTG
-65 ~ +150
°C
Note: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
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 CONDITIONS
PARAMETER
Supply Voltage
SYMBOL
VCC
High-Level Input Voltage
VIH
Low-Level Input Voltage
VIL
Input Voltage
Output Voltage
VIN
VOUT
Input Transition Rise or Fall Rate
Δt/Δv
Operating Temperature
„
CONDITIONS
VCC=2V
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
MIN
2
1.5
3.15
4.2
TYP MAX UNIT
5
6
V
V
0.5
V
1.35
1.8
VCC
V
VCC
V
1000
500 ns/V
400
85
°C
0
0
VCC=2V
VCC=4.5V
VCC=6V
TA
-40
ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
High-Level Output Voltage
SYMBOL
VOH
Low-Level Output Voltage
VOL
Input Leakage Current
Quiescent Supply Current
Input Capacitance
II(LEAK)
ICC
CIN
TEST CONDITIONS
IOH=-20 μA, VCC=2V
IOH=-20 μA, VCC=4.5V
IOH=-20 μA, VCC=6V
IOH=-6 mA, VCC=4.5V
IOH=-7.8 mA, VCC=6V
IOH=20 μA, VCC=2V
IOH=20 μA, VCC=4.5V
IOH=20 μA, VCC=6V
IOH=6 mA, VCC=4.5V
IOH=7.8 mA, VCC=6V
VIN=VCC or GND, VCC=6V
VIN=VCC or GND, IOUT=0, VCC=6V
VCC=6V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
1.9
4.4
5.9
3.98
5.48
TYP
1.998
4.499
5.999
4.3
5.8
0.002
0.001
0.001
0.17
0.15
±0.1
3
MAX UNIT
V
0.1
0.1
0.1
0.26
0.26
±100
8
10
V
nA
μA
pF
3 of 6
QW-R502-812.A
U74HC157
„
CMOS IC
SWITCHING CHARACTERISTICS
See Fig. 1 and Fig. 2 for test circuit and waveforms.
PARAMETER
SYMBOL
TEST CONDITIONS
VCC=2V, CL=50pF
VCC=2V, CL=150pF
VCC=4.5V, CL=50pF
Propagation delay from input A or B
tpd
to output Y, tpd
VCC=4.5V, CL=150pF
VCC=6V, CL=50pF
VCC=6V, CL=150pF
VCC=2V, CL=50pF
VCC=2V, CL=150pF
VCC=4.5V, CL=50pF
Propagation delay from input A / B
tpd
VCC=4.5V, CL=150pF
to output Y, tpd
VCC=6V, CL=50pF
VCC=6V, CL=150pF
VCC=2V, CL=50pF
VCC=2V, CL=150pF
VCC=4.5V, CL=50pF
Propagation delay from input G to
tpd
VCC=4.5V, CL=150pF
output Y, tpd
VCC=6V, CL=50pF
VCC=6V, CL=150pF
VCC=2V, CL=50pF
VCC=2V, CL=150pF
VCC=4.5V, CL=50pF
Output Transition Time
tT
VCC=4.5V, CL=150pF
VCC=6V, CL=50pF
VCC=6V, CL=150pF
Note: tPLH and tPHL is the same as tPd
„
MIN TYP MAX UNIT
63 125
81 190
13
25
ns
23
38
11
21
18
33
67 125
81 210
18
25
ns
23
42
14
21
18
36
59 115
91 190
16
23
ns
24
38
13
20
18
33
28
60
45 210
8
12
ns
17
42
6
10
13
36
OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
Power dissipation capacitance
SYMBOL
CPD
No load
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TEST CONDITIONS
MIN TYP MAX UNIT
40
pF
4 of 6
QW-R502-812.A
U74HC157
„
CMOS IC
TEST CIRCUIT AND WAVEFORMS
Fig. 1 Load circuitry for switching times.
Fig. 2 Propagation delay from input to output and Output transition time.
Notes: 1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, ZO=50Ω, tR=6ns,
tF=6ns.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-812.A
U74HC157
CMOS IC
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
www.unisonic.com.tw
6 of 6
QW-R502-812.A
Similar pages