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74LVX245MTC PDF даташит

Спецификация 74LVX245MTC изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Low Voltage Octal Bidirectional Transceiver».

Детали детали

Номер произв 74LVX245MTC
Описание Low Voltage Octal Bidirectional Transceiver
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74LVX245MTC Даташит, Описание, Даташиты
April 1993
Revised March 1999
74LVX245
Low Voltage Octal Bidirectional Transceiver
General Description
The LVX245 contains eight non-inverting bidirectional buff-
ers and is intended for bus-oriented applications. The
Transmit/Receive (T/R) input determines the direction of
data flow through the bidirectional transceiver. Transmit
(active-HIGH) enables data from A Ports to B Ports;
Receive (active-LOW) enables data from B Ports to A
Ports. The Output Enable input, when HIGH, disables both
A and B Ports by placing them in a high impedance condi-
tion.
Features
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
74LVX245M
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74LVX245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
Pin Descriptions
Pin Description
Names
OE Output Enable Input
T/R Transmit/Receive Input
A0–A7 Side A Inputs or 3-STATE Outputs
B0–B7 Side B Inputs or 3-STATE Outputs
Truth Table
Inputs
OE T/R
LL
LH
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
X
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
HIGH-Z State
© 1999 Fairchild Semiconductor Corporation DS011597.prf
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74LVX245MTC Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
DC Input Voltage T/R, OE (VI)
DC Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Bus I/O Voltage (VI/O)
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
±75 mA
65°C to +150°C
180 mW
Recommended Operating
Conditions (Note 2)
Supply Voltage (VCC)
Input Voltage T/R, OE (VI)
Bus I/O Voltage (VI/O)
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
VCC
VIH HIGH Level
Input
2.0
3.0
Voltage
3.6
VIL LOW Level
Input
2.0
3.0
Voltage
3.6
VOH HIGH Level
Output
2.0
3.0
Voltage
3.0
VOL LOW Level
Output
2.0
3.0
Voltage
3.0
IOZ 3-STATE
Output
3.6
Off-State Current
IIN
Input Leakage Current
3.6
ICC Quiescent Supply Current 3.6
Min
1.5
2.0
2.4
1.9
2.9
2.58
TA = +25°C
Typ Max
0.5
0.8
0.8
2.0
3.0
0.0 0.1
0.0 0.1
0.36
±0.25
TA = −40°C to +85°C Units
Min Max
Conditions
1.5
2.0 V
2.4
0.5
0.8 V
0.8
1.9
2.9
2.48
0.1
0.1
0.44
±2.5
VIN = VIH or VIL IOH = −50 µA
V IOH = −50 µA
IOH = −4 mA
VIN = VIH or VIL IOL = 50 µA
V IOL = 50 µA
IOL = 4 mA
µA VIN = VIH or VIL
VOUT = VCC or GND
±0.1
4.0
±1.0
40.0
µA VIN = 5.5V or GND
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 = 3 ns
VCC
TA = 25°C
Units
(V) Typ Limit
3.3 0.5
0.8
V
3.3 0.5 0.8
V
3.3 2.0 V
3.3 0.8 V
Conditions
CL (pF)
50
50
50
50
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74LVX245MTC Даташит, Описание, Даташиты
AC Electrical Characteristics
Symbol
Parameter
VCC TA = +25°C
(V) Min Typ Max
tPLH Propagation Delay Time
tPHL
2.7
3.3 ± 0.3
6.1 10.7
8.6 14.2
4.7 6.8
7.2 10.1
tPZL 3-STATE Output
tPZH
Enable Time
2.7
3.3 ± 0.3
9.0 16.9
11.5 20.4
7.1 11.0
9.6 14.5
tPLZ 3-STATE Output 2.7 11.5 18.0
tPHZ Disable Time
3.3 ± 0.3
9.6 12.8
tOSLH
Output to Output Skew
2.7
1.5
tOSHL
(Note 4)
3.3
1.5
Note 4: Parameter guaranteed by design. tOSLH = |tPLHm tPLHn|, tOSHL = |tPHLm tPHLn|
TA =−40°C to +85°C
Min Max
1.0 13.5
1.0 17.0
1.0 8.0
1.0 11.5
1.0 20.5
1.0 24.0
1.0 13.0
1.0 16.5
1.0 21.0
1.0 14.5
1.5
1.5
Units
ns
ns
ns
ns
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF, RL = 1 k
CL = 50 pF, RL = 1 k
CL = 15 pF, RL = 1 k
CL = 50 pF, RL = 1 k
CL = 50 pF, RL = 1 k
CL = 50 pF, RL = 1 k
CL = 50 pF (Note 4)
Capacitance
Symbol
Parameter
TA = +25°C
Min Typ Max
TA = −40°C to +85°C
Min Max
Units
CIN Input Capacitance T/R, OE
4 10
10
pF
CI/O Output Capacitance An, Bn
8
pF
CPD Power Dissipation Capacitance (Note 5)
21
pF
Note 5: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
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74LVX245MTCXLow Voltage Octal Bidirectional TransceiverFairchild Semiconductor
Fairchild Semiconductor

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