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74LCX240SJ

更新时间： 2024-11-04 08:03:59
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器逻辑集成电路光电二极管
页数 文件大小 规格书
6页 119K
描述
Low-Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs

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74LCX240SJ 数据手册

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December 1996  
74LCX240  
Low-Voltage Octal Buffer/Line Driver  
with 5V Tolerant Inputs and Outputs  
Y
Power-down high impedance inputs and outputs  
General Description  
The LCX240 is an inverting octal buffer and line driver de-  
signed to be employed as a memory address driver, clock  
driver and bus oriented transmitter or receiver. The device is  
designed for low voltage (3.3V) V applications with capa-  
CC  
bility of interfacing to a 5V signal environment.  
Y
Y
Y
Y
Supports live insertion/withdrawal  
2.0V–3.6V V supply operation  
CC  
24 mA output drive  
g
Implements patented Quiet SeriesTM noise/EMI  
reduction circuitry  
Y
Y
Y
Functionally compatible with the 74 series 240  
Latch-up performance exceeds 500 mA  
ESD performance:  
The LCX240 is fabricated with an advanced CMOS technol-  
ogy to achieve high speed operation while maintaining  
CMOS low power dissipation.  
l
200V  
Human Body Model  
l
2000V  
Machine Model  
Features  
Y
5V tolerant inputs and outputs  
Y
6.5 ns t  
max, 10 mA I max  
CCQ  
PD  
Logic Symbol  
Connection Diagram  
Pin Assignment  
for SOIC, SSOP and TSSOP  
IEEE/IEC  
TL/F/11993–2  
TL/F/11993–1  
Pin Names  
Description  
OE , OE  
1
TRI-STATE Output Enable Inputs  
É
Inputs  
Outputs  
2
I –I  
0
7
O –O  
0
7
Truth Tables  
Inputs  
Inputs  
Outputs  
(Pins 12, 14, 16, 18)  
Outputs  
(Pins 3, 5, 7, 9)  
OE  
1
I
OE  
2
I
n
n
L
L
H
L
H
X
H
L
Z
L
L
H
L
H
X
H
L
Z
e
e
e
e
Z High Impedance  
H
HIGH Voltage Level  
L
LOW Voltage Level  
X
Immaterial  
SOIC JEDEC  
74LCX240WM  
74LCX240WMX 74LCX240SJX 74LCX240MSAX 74LCX240MTCX  
SOIC EIAJ  
SSOP Type II  
TSSOP  
Order Number  
74LCX240SJ  
74LCX240MSA  
74LCX240MTC  
See NS Package Number  
M20B  
M20D  
MSA20  
MTC20  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
Quiet SeriesTM is a trademark of National Semiconductor Corporation.  
C
1996 National Semiconductor Corporation  
TL/F/11993  
RRD-B30M17/Printed in U. S. A.  
http://www.national.com  
123456

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