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參數(shù)資料
| 型號(hào)： | SN54ABT648 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Bus Transceivers and Registers With 3-State Outputs(八總線收發(fā)器和寄存器(三態(tài)輸出)) |
| 中文描述： | 八路總線收發(fā)器和寄存器具有三態(tài)輸出（八總線收發(fā)器和寄存器（三態(tài)輸出）） |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大?。?/td> | 193K |
| 代理商： | SN54ABT648 |
SN54ABT648, SN74ABT648
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS466 – JANUARY 1991 – REVISED OCTOBER 1992
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE
INPUTS
DATA I/O
OPERATION OR FUNCTION
OE
X
DIR
CLKAB
↑
X
↑
H or L
CLKBA
SAB
SBA
A1 THRU A8
B1 THRU B8
Unspecified
X
X
↑
↑
X
X
Input
Store A, B unspecified
Store B, A unspecified
X
X
X
X
Unspecified
Input
H
X
X
X
Input
Input
Store A and B data
H
X
H or L
X
X
Input
Input
Isolation, hold storage
L
L
X
X
X
L
Output
Input
Real-time B data to A Bus
L
L
X
H or L
X
H
Output
Input
Stored B data to A Bus
L
H
X
X
L
X
Input
Output
Real-time A data to B Bus
L
H
H or L
X
H
X
Input
Output
Stored A data to B Bus
The data output functions may be enabled or disabled by various signals at the OE and DIR inputs. Data input functions are always enabled;
i.e., data at the bus pins will be stored on every low-to-high transition of the clock inputs.
logic symbol
B2
19
OE
DIR
G3
3 EN1 [BA]
21
3
3 EN2 [AB]
G5
22
1
2
SBA
A2
5
A3
6
A4
7
A5
8
A6
9
A7
10
A8
11
A1
4
B1
20
4D
B3
18
B4
17
B5
16
B6
15
B7
14
B8
13
23
CLKBA
CLKAB
SAB
G7
5
7
7
5
1
1
6D
≥
1
≥
1
1
2
C6
C4
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the DW, JT, and NT packages.
P
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| SN74ABT648 | Octal Bus Transceivers and Registers With 3-State Outputs(八總線收發(fā)器和寄存器(三態(tài)輸出)) |
| SN54ABT651FK | OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
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| SN54ABT651 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
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| SN54ABT651FK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
| SN54ABT651JT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
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