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參數(shù)資料
| 型號： | 74F651SCX |
| 元件分類： | 通用總線功能 |
| 英文描述： | Single 8-Bit Inverting Bus Transceiver |
| 中文描述： | 單8位反向總線收發(fā)器 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 82K |
| 代理商： | 74F651SCX |
3
www.fairchildsemi.com
7
Functional Description
In the transceiver mode, data present at the HIGH imped-
ance port may be stored in either the A or B register or
both.
The select (SAB, SBA) controls can multiplex stored and
real-time.
The examples in Figure 1 demonstrate the four fundamen-
tal bus-management functions that can be performed with
the Octal bus transceivers and receivers.
Data on the A or B data bus, or both can be stored in the
internal D flip-flop by LOW-to-HIGH transitions at the
appropriate Clock Inputs (CPAB, CPBA) regardless of the
Select or Output Enable Inputs. When SAB and SBA are in
the real time transfer mode, it is also possible to store data
without using the internal D flip-flops by simultaneously
enabling OEAB and OEBA. In this configuration each Out-
put reinforces its Input. Thus when all other data sources to
the two sets of bus lines are in a HIGH impedance state,
each set of bus lines will remain at its last state.
FIGURE 1.
Note A: Real-Time
Transfer Bus B to Bus A
Note B: Real-Time
Transfer Bus A to Bus B
OEAB OEBA CPAB
L
L
CPBA
X
SAB
X
SBA
L
OEAB OEBA CPAB
H
H
CPBA
X
SAB
L
SBA
X
X
X
Note C: Storage
Note D: Transfer Storage
Data to A or B
OEAB OEBA CPAB
X
H
L
X
L
H
CPBA
X
SAB
X
X
X
SBA
X
X
X
OEAB OEBA CPAB
H
L
CPBA
SAB
H
SBA
X
H or L H or L
X
相關(guān)PDF資料 |
PDF描述 |
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| 74F652SCX | Single 8-bit Bus Transceiver |
| 74F657SC | Single 8-bit Bus Transceiver |
| 74F657SCX | Single 8-bit Bus Transceiver |
| 74F657SDC | Single 8-bit Bus Transceiver |
| 74F655A | Octal buffer/driver with parity, non-inverting 3-State |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F651SPC | 功能描述:總線收發(fā)器 Transceiver/Register 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(shí)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 |
| 74F652 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Transceivers/Registers |
| 74F652_XDC3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F652A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Transceivers/registers |
| 74F652SC | 功能描述:總線收發(fā)器 Transceiver/Register 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(shí)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 |
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