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參數(shù)資料
| 型號(hào)： | MC74AC353N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS |
| 中文描述： | AC SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 179K |
| 代理商： | MC74AC353N |
MC74AC353 MC74ACT353
5-2
FACT DATA
FUNCTIONAL DESCRIPTION
The MC74AC353/74ACT353 contains two identical
4-input multiplexers with 3-state outputs. They select two bits
from four sources selected by common Select inputs (S0, S1).
The 4-input multiplexers have individual Output Enable (OEa,
OEb) inputs which, when HIGH, force the outputs to a high
impedance (High Z) state. The logic equations for the outputs
are shown below:
Za = OEa
(I0a
S1
S0+I1a
S1
S0+
I2a
S1
S0+I3a
S1
S0)
Zb = OEb
(I0b
S1
S0+I1b
S1
S0+
I2b
S1
S0+I3b
S1
S0)
If the outputs of 3-state devices are tied together, all but one
device must be in the high impedance state to avoid high
currents that would exceed the maximum ratings. Designers
should ensure that Output Enable signals to 3-state devices
whose outputs are tied together are designed so that there is
no overlap.
OEb
I3b
I2b
I1b
I0b
S0
S1
I3a
I2a
Zb
Za
I1a
I0a
OEa
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
LOGIC DIAGRAM
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| MC74AC373 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
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