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DM74LS466 데이터시트 PDF




National Semiconductor에서 제조한 전자 부품 DM74LS466은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 DM74LS466 기능
기능 (DM74LS465 - DM74LS468) TRI-STATE Octal Buffer
제조업체 National Semiconductor
로고 National Semiconductor 로고


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DM74LS466 데이터시트, 핀배열, 회로
September 1991
DM74LS465 (DM81LS95A) DM74LS466 (DM81LS96A)
DM74LS467 (DM81LS97A) DM74LS468 (DM81LS98A)
TRI-STATE Octal Buffer
General Description
These devices provide eight two-input buffers in each pack-
age All employ the newest low-power-Schottky TTL tech-
nology One of the two inputs to each buffer is used as a
control line to gate the output into the high-impedance
state while the other input passes the data through the buff-
er The ’LS465 and ’LS467 present true data at the outputs
while the ’LS466 and ’LS468 are inverting On the ’LS465
and ’LS466 versions all eight TRI-STATE enable lines are
common with access through a 2-input NOR gate On the
’LS467 and ’LS468 versions four buffers are enabled from
one common line and the other four buffers are enabled
from another common line In all cases the outputs are
placed in the TRI-STATE condition by applying a high logic
level to the enable pins These devices represent octal low
power-Schottky versions of the very popular DM54 74365
366 367 and 368 (DM8095 96 97 and 98) TRI-STATE
hex buffers
Features
Y Octal versions of popular DM74365 366 367 and 368
(DM8095 96 97 and 98)
Y Typical power dissipation
LS465 467 (LS95A 97A) 80 mW
LS466 468 (LS96A 98A) 65 mW
Y Typical propagation delay
LS465 467 (LS95A 97A) 15 ns
LS466 468 (LS96A 98A) 10 ns
Y Low power-Schottky TRI-STATE technology
Connection Diagrams
Dual-In-Line Packages
TL F 6435 – 1
TL F 6435 – 2
TL F 6435 – 3
Order Numbers DM74LS465WM DM81LS95AWM DM74LS465N DM81LS95AN
DM74LS466WM DM81LS96AWM DM74LS466N DM81LS96AN
DM74LS467WM DM81LS97AWM DM74LS467N DM81LS97AN
DM74LS468WM DM81LS98AWM or DM74LS468N DM81LS98AN
See NS Package Number M20B or N20A
TRI-STATE is a registered trademark of National Semiconductor Corporation
TL F 6435 – 4
C1995 National Semiconductor Corporation TL F 6435
RRD-B30M105 Printed in U S A




DM74LS466 pdf, 반도체, 판매, 대치품
’LS466 and ’LS468 Switching Characteristics
for test waveforms and output load VCC e 5V TA e 25 C
Symbol
Parameter
RL e 667X
CL e 50 pF
CL e 150 pF
Min Max Min Max
tPLH
Propagation Delay Time
Low to High Level Output
10 16
tPHL
Propagation Delay Time
High to Low Level Output
17 30
tPZH
Output Enable Time
to High Level Output
15 30
tPZL Output Enable Time
to Low Level Output
35 45
tPHZ
Output Disable Time
from High Level Output (Note 1)
20
tPLZ Output Disable Time
from Low Level Output (Note 1)
27
Note 1 CL e 5 pF
Function Tables
LS465 (LS95A)
LS466 (LS96A)
Inputs
G1 G2
HX
XH
LL
LL
A
X
X
H
L
Output
Y
Hi-Z
Hi-Z
H
L
Inputs
G1 G2
HX
XH
LL
LL
A
X
X
H
L
Output
Y
Hi-Z
Hi-Z
L
H
LS467 (LS97A)
Inputs
GA
Output
Y
HX
LH
LL
Hi-Z
H
L
H e High Logic Level
L e Low Logic Level
X e Either High or Low Logic Level
Hi-Z e High Impedance (Off) State
LS468 (LS98A)
Inputs
GA
Output
Y
HX
LH
LL
Hi-Z
L
H
Units
ns
ns
ns
ns
ns
ns
4

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