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參數(shù)資料
| 型號： | 74FR543SCX |
| 英文描述： | SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits |
| 中文描述： | 單8位總線收發(fā)器 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 59K |
| 代理商： | 74FR543SCX |
www.fairchildsemi.com
2
7
Pin Descriptions
Functional Description
The 74FR543 contains two sets of D-type latches, with
separate input and output controls for each. For data flow
from A-to-B, for example, the A-to-B Enable (CEAB) input
must be LOW in order to enter data from the A Port or take
data from the B Port as indicated in the Data I/O Control
Table. With CEAB LOW, a LOW signal on (LEAB) input
makes the A-to-B latches transparent; a subsequent LOW-
to-HIGH transition of the LEAB line puts the A latches in
the storage mode and their outputs no longer change with
the A inputs. With CEAB and OEAB both LOW, the B out-
put buffers are active and reflect the data present on the
output of the A latches. Control of data flow from B-to-A is
similar, but using the CEBA, LEBA and OEBA.
Data I/O Control Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Logic Diagram
Pin Names
Description
OEAB, OEBA
Output Enable Inputs
LEAB, LEBA
Latch Enable Inputs
CEAB, CEBA
Chip Enable Inputs
A
0
–
A
7
B
0
–
B
7
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Inputs
Latch
Output
CEAB LEAB OEAB
Status
Buffers
H
X
X
Latched
High Z
X
H
X
Latched
—
L
L
X
Transparent
—
X
X
H
—
High Z
L
X
L
—
Driving
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PDF描述 |
|---|---|
| 74FR573SCX | 8-Bit D-Type Latch |
| 74FR74PCQR | Dual D-Type Flip-Flop |
| 74FR1074PCQR | SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits |
| 74FR16245QCQR | 16-Bit Bus Transceiver |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74FR543SPC | 功能描述:總線收發(fā)器 Octal Latched Trans RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74FR573 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal D-Type Latch with 3-STATE Outputs |
| 74FR573PC | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal D-Type Latch with 3-STATE Outputs |
| 74FR573SC | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal D-Type Latch with 3-STATE Outputs |
| 74FR573SCX | 功能描述:閉鎖 Octal D-Type Latch RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
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