參數(shù)資料
型號: 74LCX16646MTDX
廠商: Fairchild Semiconductor
文件頁數(shù): 5/10頁
文件大?。?/td> 0K
描述: IC TRANSCVR/REG 16BIT LV 56TSSOP
標準包裝: 1
系列: 74LCX
邏輯類型: 寄存收發(fā)器,非反相
元件數(shù): 2
每個元件的位元數(shù): 8
輸出電流高,低: 24mA,24mA
電源電壓: 2 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 56-TFSOP(0.240",6.10mm 寬)
供應(yīng)商設(shè)備封裝: 56-TSSOP
包裝: 標準包裝
產(chǎn)品目錄頁面: 1211 (CN2011-ZH PDF)
其它名稱: 74LCX16646MTDXDKR
www.fairchildsemi.com
4
74LCX16646
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 (SABn, SBAn) controls can multiplex
stored and real-time. The examples shown below demon-
strate the four fundamental bus-management functions
that can be performed.
The direction control (DIRn) determines which bus will
receive data when OEn is LOW. In the isolation mode (OEn
HIGH), A data may be stored in one register and/or B data
may be stored in the other register. When an output func-
tion is disabled, the input function is still enabled and may
be used to store and transmit data. Only one of the two
busses, A or B, may be driven at a time.
Real-Time Transfer
Bus B to Bus A
Real-Time Transfer
Bus A to Bus B
Transfer Storage
Data to A or B
Storage
OE DIR CPAB CPBA SAB SBA
LL
X
L
OE DIR CPAB CPBA SAB SBA
LH
X
L
X
OE DIR CPAB CPBA SAB SBA
LL
X
H or L
X
H
LH
H or L
X
H
X
OE DIR CPAB CPBA SAB SBA
LH
XL
X
LX
X
XL
HX
XX
X
HX
X
XX
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