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74LVX157MTC PDF даташит

Спецификация 74LVX157MTC изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Low Voltage Quad 2-Input Multiplexer».

Детали детали

Номер произв 74LVX157MTC
Описание Low Voltage Quad 2-Input Multiplexer
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74LVX157MTC Даташит, Описание, Даташиты
May 1993
Revised March 1999
74LVX157
Low Voltage Quad 2-Input Multiplexer
General Description
The LVX157 is a high-speed quad 2-input multiplexer. Four
bits of data from two sources can be selected using the
common Select and Enable inputs. The four outputs
present the selected data in the true (noninverted) form.
The LVX157 can also be used as a function generator.
Features
s Input voltage level translation from 5V to 3V
s Ideal for low power/low noise 3.3V applications
s Guaranteed simultaneous switching noise level and
dynamic threshold performance
Ordering Code:
Order Number Package Number
Package Description
74LVX157M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
74LVX157SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX157MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices are also available in Tape and Reel. Specify by appending letter suffix “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
I0a–I0d
I1a–I1d
E
S
Za–Zd
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
© 1999 Fairchild Semiconductor Corporation DS011608.prf
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74LVX157MTC Даташит, Описание, Даташиты
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Inputs
Outputs
E S I0 I1
Z
HXXX
L
L HX L
L
LHXH
H
LL LX
L
LLHX
H
Functional Description
The LVX157 is a quad 2-input multiplexer. It selects four
bits of data from two sources under the control of a com-
mon Select input (S). The Enable input (E) is active-LOW.
When E is HIGH, all of the outputs (Z) are forced LOW
regardless of all other inputs. The LVX157 is the logic
implementation of a 4-pole, 2-position switch where the
position of the switch is determined by the logic levels sup-
plied to the Select input. The logic equations for the outputs
are shown below:
Za = E • (I1a • S + I0a • S)
Zb = E • (I1b • S + I0b • S)
Zc = E • (I1c • S + I0c • S)
Zd = E • (I1d • S + I0d • S)
A common use of the LVX157 is the moving of data from
two groups of registers to four common output busses. The
particular register from which the data comes is determined
by the state of the Select input. A less obvious use is as a
function generator. The LVX157 can generate any four of
the sixteen different functions of two variables with one
variable common. This is useful for implementing gating
functions.
Logic Diagram
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74LVX157MTC Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
(ICC or IGND)
Storage Temperature (TSTG)
Power Dissipation
0.5V to +7.0V
20 mA
0.5V to 7V
20 mA
+20 mA
0.5V to VCC + 0.5V
±25 mA
±50 mA
65°C to +150°C
180 mW
Recommended Operating
Conditions (Note 2)
Supply Voltage (VCC)
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
Input Rise and Fall Time (t/V)
2.0V to 3.6V
0V to 5.5V
0V to VCC
40°C to +85°C
0 ns/V to 100 ns/V
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
Parameter
VIH HIGH Level
Input Voltage
VIL LOW Level
Input Voltage
VOH HIGH Level
Output Voltage
VOL LOW Level
Output Voltage
IIN Input Leakage Current
VCC
TA = +25°C
TA = −40°C to +85°C Units
Min Typ Max Min Max
Conditions
2.0 1.5
1.5
3.0 2.0
2.0 V
3.6 2.4
2.4
2.0 0.5 0.5
3.0 0.8 0.8 V
3.6 0.8 0.8
2.0 1.9
2.0
1.9
VIN = VIL or VIH IOH = −50 µA
3.0 2.9
3.0
2.9
V
IOH = −50 µA
3.0 2.58
2.48
IOH = −4 mA
2.0 0.0 0.1
0.1 VIN = V IL or VIH IOL = 50 µA
3.0 0.0 0.1
0.1 V
IOL = 50 µA
3.0 0.36 0.44
IOL = 4 mA
3.6
±0.1
±1.0
µA VIN = 5.5V or GND
ICC Quiescent Supply Current 3.6
4.0
40.0
µA VIN = VCC or GND
Noise Characteristics (Note 3)
Symbol
Parameter
VOLP
Quiet Output Maximum Dynamic VOL
VOLV
Quiet Output Minimum Dynamic VOL
VIHD
Minimum HIGH Level Dynamic Input Voltage
VILD Maximum LOW Level Dynamic Input Voltage
Note 3: Input tr = tf = 3ns
VCC
TA = 25°C
Units
(V) Typ Limit
3.3 0.3 0.5
V
3.3
0.3
0.5
V
3.3 2.0 V
3.3 0.8 V
CL (pF)
50
50
50
50
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Номер в каталогеОписаниеПроизводители
74LVX157MTCLow Voltage Quad 2-Input MultiplexerFairchild Semiconductor
Fairchild Semiconductor

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