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參數資料
| 型號： | SN54ABT652JT |
| 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： | 2/11頁 |
| 文件大?。?/td> | 176K |
| 代理商： | SN54ABT652JT |
SN54ABT652, SN74ABT652
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS070D – JULY 1991 – REVISED JULY 1994
2–2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The SN54ABT652 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
SN74ABT652 is characterized for operation from –40
°
C to 85
°
C.
FUNCTION TABLE
INPUTS
DATA I/O
OPERATION OR FUNCTION
OEAB
L
OEBA
H
CLKAB
H or L
↑
↑
↑
H or L
↑
X
CLKBA
H or L
↑
H or L
↑
↑
↑
X
SAB
X
SBA
X
A1 THRU A8
Input
B1 THRU B8
Input
Isolation
L
H
X
X
Input
Input
Store A and B data
X
H
X
X
X
Input
Unspecified
Store A, hold B
H
H
X
Input
Output
Store A in both registers
L
X
X
X
X
Unspecified
Input
Hold A, store B
L
L
X
Output
Input
Store B in both registers
L
L
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
H
H
X
X
L
X
Input
Output
Real-time A data to B bus
H
H
H or L
X
H
X
Input
Output
Stored A data to B bus
H
L
H or L
H or L
H
H
Output
Output
Stored A data to B bus and
stored B data to A bus
The data output functions may be enabled or disabled by a variety of level combinations at the OEAB or OEBA inputs. Data input functions are
always enabled; i.e., data at the bus pins is stored on every low-to-high transition on the clock inputs.
Select control = L; clocks can occur simultaneously.
Select control = H; clocks must be staggered in order to load both registers.
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