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74LCX240 PDF даташит

Спецификация 74LCX240 изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs».

Детали детали

Номер произв 74LCX240
Описание Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74LCX240 Даташит, Описание, Даташиты
February 1994
Revised April 1999
74LCX240
Low Voltage Octal Buffer/Line Driver with
5V Tolerant Inputs and Outputs
General Description
The LCX240 is an inverting octal buffer and line driver
designed to be employed as a memory address driver,
clock driver and bus oriented transmitter or receiver. The
device is designed for low voltage (2.5V or 3.3V) VCC appli-
cations with capability of interfacing to a 5V signal environ-
ment.
The LCX240 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s 5V tolerant inputs and outputs
s 2.3V–3.6V VCC specifications provided
s 6.5 ns tPD max (VCC = 3.3V), 10 µA ICC max
s Power-down high impedance inputs and outputs
s Supports live insertion/withdrawal (Note 1)
s ±24 mA output drive (VCC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
Note 1: To ensure the high-impedance state during power up or down, OE
should be tied to VCC through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number Package Number
Package Description
74LCX240WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74LCX240SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX240MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74LCX240MTC
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 Diagram
Connection Diagram
© 1999 Fairchild Semiconductor Corporation DS011993.prf
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74LCX240 Даташит, Описание, Даташиты
Pin Descriptions
Pin Names
OE1, OE2
I0–I7
O0–O7
Description
3-STATE Output Enable Inputs
Inputs
Outputs
Truth Tables
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Inputs
OE1
L
L
H
Inputs
OE2
L
L
H
In
L
H
X
In
L
H
X
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Outputs
(Pins 3, 5, 7, 9)
H
L
Z
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74LCX240 Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 2)
Symbol
VCC
VI
VO
Parameter
Supply Voltage
DC Input Voltage
DC Output Voltage
IIK DC Input Diode Current
IOK DC Output Diode Current
IO
ICC
IGND
TSTG
DC Output Source/Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature
Value
0.5 to +7.0
0.5 to +7.0
0.5 to +7.0
0.5 to VCC + 0.5
50
50
+50
±50
±100
±100
65 to +150
Conditions
Output in 3-STATE
Output in HIGH or LOW State (Note 3)
VI < GND
VO < GND
VO > VCC
Units
V
V
V
V
mA
mA
mA
mA
mA
°C
Recommended Operating Conditions (Note 4)
Symbol
Parameter
Min Max Units
VCC Supply Voltage
Operating
Data Retention
2.0
1.5
3.6
3.6
V
VI Input Voltage
VO Output Voltage
0 5.5 V
HIGH or LOW State
0
VCC
V
3-STATE
0
5.5
IOH/IOL
Output Current
VCC = 3.0V 3.6V
±24
VCC = 2.7V 3.0V
±12 mA
VCC = 2.3V 2.7V
±8
TA Free-Air Operating Temperature
40 85
°C
t/V
Input Edge Rate, VIN = 0.8V–2.0V, VCC = 3.0V
0 10 ns/V
Note 2: 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 “Recom-
mended Operating Conditions” table will define the conditions for actual device operation.
Note 3: IO Absolute Maximum Rating must be observed.
Note 4: 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
II Input Leakage Current
IOFF Power-Off Leakage Current
ICC Quiescent Supply Current
ICC
Increase in ICC per Input
Note 5: Outputs disabled or 3-STATE only.
Conditions
IOH = −100µA
IOH = -8 mA
IOH = −12 mA
IOH = −18 mA
IOH = −24 mA
IOL = 100µA
IOL = 8mA
IOL = 12 mA
IOL = 16 mA
IOL = 24 mA
0 VI 5.5V
VI or VO = 5.5V
VI = VCC or GND
3.6V VI, VO 5.5V (Note 5)
VIH = VCC = 0.6V
VCC
(V)
2.3 2.7
2.7 3.6
2.3 2.7
2.7 3.6
2.3 3.6
2.3
2.7
3.0
3.0
2.3 3.6
2.3
2.7
3.0
3.0
2.3 3.6
2.3 3.6
2.3 3.6
2.3 3.6
TA = −40°C to +85°C
Min Max
1.7
2.0
0.7
0.8
VCC - 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
±5.0
10
10
±10
500
Units
V
V
V
V
µA
µA
µA
µA
3 www.fairchildsemi.com










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