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부품번호 | 74LCX841MSA 기능 |
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기능 | Low Voltage 10-Bit Transparent Latch with 5V Tolerant Inputs and Outputs | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 8 페이지수
October 1995
Revised April 1999
74LCX841
Low Voltage 10-Bit Transparent Latch with 5V Tolerant
Inputs and Outputs
General Description
The LCX841 consists of ten latches with 3-STATE outputs
for bus organized system applications. The device is
designed for low voltage (2.5V or 3.3V) VCC applications
with capability of interfacing to a 5V signal environment.
The LCX841 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 8.0 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
74LCX841WM
74LCX841MSA
74LCX841MTC
Package Number
Package Description
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
MSA24
24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
MTC24
24-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
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation DS012575.prf
www.fairchildsemi.com
DC Electrical Characteristics (Continued)
Symbol
Parameter
ICC Quiescent Supply Current
∆ICC
Increase in ICC per Input
Note 5: Outputs disabled or 3-STATE only.
Conditions
VI = VCC or GND
3.6V ≤ VI, VO ≤ 5.5V (Note 5)
VIH = VCC − 0.6V
VCC
(V)
2.3 − 3.6
2.3 − 3.6
2.3 − 3.6
TA = −40°C to +85°C
Min Max
10
±10
500
Units
µA
µA
AC Electrical Characteristics
TA = −40°C to +85°C, RL = 500Ω
Symbol
Parameter
VCC = 3.3V ± 0.3V
CL = 50 pF
VCC = 2.7V
CL = 50 pF
VCC = 2.5V ± 0.2V
CL = 30 pF
Units
Min Max Min Max Min Max
tPHL
tPLH
Propagation Delay
Dn to On
1.5 7.0 1.5 7.5 1.5 8.4
ns
1.5 7.0 1.5 7.5 1.5 8.4
tPHL
tPLH
Propagation Delay
LE to On
1.5 7.0 1.5 7.5 1.5 8.4
ns
1.5 7.0 1.5 7.5 1.5 8.4
tPZL
tPZH
Output Enable Time
1.5 8.0 1.5
1.5 8.0 1.5
8.5 1.5 9.6
8.5 1.5 9.6
ns
tPLZ
tPHZ
Output Disable Time
1.5 6.5 1.5
1.5 6.5 1.5
7.0 1.5 7.8
7.0 1.5 7.8
ns
tOSHL
tOSLH
Output to Output Skew
(Note 6)
1.0
1.0
ns
tS Setup Time Dn to LE
2.5 2.5 4.0 ns
tH Hold Time Dn to LE
1.5 1.5 2.0 ns
tW LE Pulse Width
3.3 3.3 4.0 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 0.8
2.5 0.6
V
3.3 −0.8
2.5 −0.6
V
Symbol
CIN
CO
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
20
Units
pF
pF
pF
www.fairchildsemi.com
4
4페이지 Physical Dimensions inches (millimeters) unless otherwise noted
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
Package Number M24B
24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
Package Number MSA24
7 www.fairchildsemi.com
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ 74LCX841MSA.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
74LCX841MSA | Low Voltage 10-Bit Transparent Latch with 5V Tolerant Inputs and Outputs | Fairchild Semiconductor |
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