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부품번호 74LCX2244SJ 기능
기능 Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Outputs with 26W Series Resistors in the Outputs
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74LCX2244SJ 데이터시트, 핀배열, 회로
October 1995
Revised June 1999
74LCX2244
Low Voltage Buffer/Line Driver with 5V Tolerant Inputs
and Outputs with 26Series Resistors in the Outputs
General Description
The LCX2244 contains eight non-inverting buffers with 3-
STATE outputs. The device may be employed as a mem-
ory address driver, clock driver and bus-oriented transmit-
ter/receiver. The LCX2244 is designed for low voltage
(2.5V or 3.3V) VCC applications with capability of interfac-
ing to a 5V signal environment. The 26-series resistors
help reduce output overshoot and undershoot.
The LCX2244 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 7.5 ns tPD max (VCC = 3.3V) 10 µA ICC max
s Power down high impedance inputs and outputs
s 26-series resistors in the outputs
s Supports live insertion/withdrawal (Note 1)
s ±12 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
74LCX2244WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74LCX2244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX2244MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74LCX2244MTC
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 suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation DS012569
www.fairchildsemi.com




74LCX2244SJ pdf, 반도체, 판매, 대치품
DC Electrical Characteristics (Continued)
Symbol
Parameter
IOFF
Power-Off Leakage Current
ICC Quiescent Supply Current
ICC
Increase in ICC per Input
Note 5: Outputs disabled or 3-STATE only.
Conditions
VI or VO = 5.5V
VI = VCC or GND
3.6V VI, VO 5.5V (Note 5)
VIH = VCC 0.6V
VCC
(V)
0
2.3 3.6
2.3 3.6
2.3 3.6
TA = −40°C to +85°C
Min Max
10
10
±10
500
Units
µA
µA
µA
AC Electrical Characteristics
TA = −40°C to +85°C, RL = 500
Symbol
Parameter
VCC = 3.3V ± 0.3V
CL = 50pF
VCC = 2.7V
CL = 50pF
VCC = 2.5 ± 0.2V
CL = 30pF
Units
Min Max Min Max Min Max
tPHL Propagation Delay
tPLH Data to Output
1.5 7.5 1.5 8.5 1.5 9.0
1.5 7.5 1.5 8.5 1.5 9.0
ns
tPZL
tPZH
Output Enable Time
1.5 9.0 1.5 10.0 1.5 10.5
1.5 9.0 1.5 10.0 1.5 10.5
ns
tPLZ
tPHZ
Output Disable Time
1.5 7.0 1.5 8.0 1.5 8.4
1.5 7.0 1.5 8.0 1.5 8.4
ns
tOSHL
tOSLH
Output to Output Skew (Note 6)
1.0
1.0
ns
Note 6: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Dynamic Switching Characteristics
Symbol
Parameter
VOLP
Quiet Output Dynamic Peak VOL
VOLV
Quiet Output Dynamic Valley VOL
Capacitance
Conditions
CL = 50 pF, VIH = 3.3V, VIL = 0V
CL = 30 pF, VIH = 2.5V, VIL = 0V
CL = 50 pF, VIH = 3.3V, VIL = 0V
CL = 30 pF, VIH = 2.5V, VIL = 0V
VCC
TA = 25°C
Units
(V) Typical
3.3 0.35
2.5 0.25
V
3.3 0.35
2.5 0.25
V
Symbol
CIN
COUT
CPD
Parameter
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Conditions
VCC = Open, VI = 0V or VCC
VCC = 3.3V, VI = 0V or VCC
VCC = 3.3V, VI = 0V or VCC, f = 10 MHz
Typical
7
8
25
Units
pF
pF
pF
www.fairchildsemi.com
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74LCX2244SJ 전자부품, 판매, 대치품
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
Package Number M20B
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M20D
7 www.fairchildsemi.com

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74LCX2244SJ

Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Outputs with 26W Series Resistors in the Outputs

Fairchild Semiconductor
Fairchild Semiconductor

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