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74LCX126 반도체 회로 부품 판매점

Low Voltage Quad Buffer with 5V Tolerant Inputs and Outputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74LCX126 데이터시트, 핀배열, 회로
September 2000
Revised July 2003
74LCX126
Low Voltage Quad Buffer
with 5V Tolerant Inputs and Outputs
General Description
The LCX126 contains four independent non-inverting buff-
ers with 3-STATE outputs. Each output is disabled when
the associated output-enable (OE) input is LOW. The
inputs tolerate voltages up to 7V allowing the interface of
5V systems to 3V systems.
The 74LCX126 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 5.5 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 > 100V
Note 1: To ensure the high-impedance state during power up or down, OE
should be tied to GND 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
74LCX126M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74LCX126SJ
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX126MTC
MTC14
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter Xto the ordering code.
Logic Symbol
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
An
OEn
On
Description
Inputs
Output Enable Inputs
Outputs
Truth Table
Inputs
Output
OEn
An
On
HL L
HHH
LXZ
H = HIGH Voltage Level
L = LOW Voltage Level
Z = High Impedance
X = Immaterial
© 2003 Fairchild Semiconductor Corporation DS500386
www.fairchildsemi.com


74LCX126 데이터시트, 핀배열, 회로
Absolute Maximum Ratings(Note 2)
Symbol
Parameter
VCC Supply Voltage
VI DC Input Voltage
VO 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 = 0.8V2.0V, 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 Conditionstable will define the conditions for actual device operation.
Note 3: IO Absolute Maximum Rating must be observed.
Note 4: Unused inputs or I/Os 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
IOZ 3-STATE Output Leakage
IOFF
Power-Off Leakage Current
Conditions
IOH = −100 µA
IOH = -8 mA
IOH = −12 mA
IOH = −18 mA
IOH = −24 mA
IOL = 100 µA
IOL = 8mA
IOL = 12 mA
IOL = 16 mA
IOL = 24 mA
0 VI 5.5V
0 VO 5.5V
VI = VIH or VIL
VI or VO = 5.5V
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
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
2.3 3.6
±5.0
0 10
Units
V
V
V
V
µA
µA
µA
www.fairchildsemi.com
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