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參數(shù)資料
| 型號(hào)： | 74F352SJX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Input Digital Multiplexer |
| 中文描述： | F/FAST SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDSO16 |
| 封裝： | 5.30 MM, EIAJ TYPE2, SOP-16 |
| 文件頁(yè)數(shù)： | 2/5頁(yè) |
| 文件大?。?/td> | 47K |
| 代理商： | 74F352SJX |
www.fairchildsemi.com
2
7
Unit Loading/Fan Out
Functional Description
The 74F352 is a dual 4-input multiplexer. It selects two bits
of data from up to four sources under the control of the
common Select inputs (S
0
, S
1
). The two 4-input multiplexer
circuits have individual active LOW Enables (E
a
, E
b
) which
can be used to strobe the outputs independently. When the
Enables (E
a
, E
b
) are HIGH, the corresponding outputs (Z
a
,
Z
b
) are forced HIGH. The logic equations for the outputs
are shown below:
Z
a
=
E
a
(I
0a
S
1
S
0
+
I
1a
S
1
S
0
+
I
2a
S
1
S
0
+
I
3a
S
1
S
0
)
Z
b
=
E
b
(I
0b
S
1
S
0
+
I
1b
S
1
S
0
+
I
2b
S
1
S
0
+
I
3b
S
1
S
0
)
The 74F352 can be used to move data from a group of reg-
isters to a common output bus. The particular register from
which the data came would be determined by the state of
the Select inputs. A less obvious application is as a func-
tion generator. The 74F352 can generate two functions of
three variables. This is useful for implementing highly irreg-
ular random logic.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Pin Names
Description
U.L.
Input I
IH
/I
IL
Output I
OH
/I
OL
20
μ
A/
0.6 mA
20
μ
A/
0.6 mA
20
μ
A/
0.6 mA
20
μ
A/
0.6 mA
20
μ
A/
0.6 mA
1 mA/20 mA
HIGH/LOW
1.0/1.0
1.0/1.0
1.0/1.0
I
0a
–I
3a
I
0b
–I
3b
S
0
–S
1
E
a
E
b
Z
a
, Z
b
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Enable Input (Active LOW)
1.0/1.0
Side B Enable Input (Active LOW)
1.0/1.0
Multiplexer Outputs (Inverted)
50/33.3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F353 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 4-input multiplexer 3-State |
| 74F353D | 制造商:Rochester Electronics LLC 功能描述: |
| 74F353PC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74F36 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-INPUT POSITIVE-NOR GATES |
| 74F365 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Hex Buffer/Driver with 3-STATE Outputs |
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