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參數(shù)資料
| 型號： | SNJ54HCT646FK |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路總線收發(fā)器和寄存器具有三態(tài)輸出 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 261K |
| 代理商： | SNJ54HCT646FK |
SN54HCT646, SN74HCT646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCLS178C
–
MARCH 1984
–
REVISED MARCH 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
21
OE
L
3
DIR
L
1
CLKAB
X
23
CLKBA
X
2
SAB
X
22
SBA
L
REAL-TIME TRANSFER
BUS B TO BUS A
21
OE
L
3
DIR
H
1
CLKAB
X
REAL-TIME TRANSFER
BUS A TO BUS B
23
CLKBA
X
2
SAB
L
22
SBA
X
21
OE
X
X
H
3
DIR
X
X
X
1
CLKAB
↑
23
CLKBA
X
↑
↑
2
SAB
X
X
X
22
SBA
X
X
X
STORAGE FROM
A, B, OR A AND B
21
OE
L
L
3
DIR
L
H
1
CLKAB
X
H or L
23
CLKBA
H or L
X
2
SAB
X
H
22
SBA
H
X
TRANSFER STORED DATA
TO A AND/OR B
X
↑
B
B
B
B
B
B
B
B
Pin numbers shown are for the DW, JT, NT, and W packages.
Figure 1. Bus-Management Functions
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