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參數(shù)資料
| 型號(hào)： | SN54ABT854 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8-Bit To 9-Bit Parity Bus Transceivers(8-9奇偶總線收發(fā)器) |
| 中文描述： | 8位到第9位奇偶總線收發(fā)器（8-9奇偶總線收發(fā)器） |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 142K |
| 代理商： | SN54ABT854 |
SN54ABT854, SN74ABT854
8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SCBS170 – FEBRUARY 1991–REVISED OCTOBER 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3
logic diagram (positive logic)
PARITY
ERR
CLR
B1–B8
A1–A8
LE
OEA
OEB
EN
EN
8x
8x
MUX
1
1
G1
1
1
2k
“P”
8
9
8
8
8
8
ERROR FLAG FUNCTION TABLE
INPUTS
INTERNAL
TO DEVICE
POINT “P”
L
H
L
X
H
X
OUTPUT
PRE-STATE
ERRn–1
OUTPUT
ERR
FUNCTION
CLR
LE
L
L
X
L
H
L
L
H
H
L
H
Pass
H
L
X
L
H
X
L
H
Sample
L
H
Clear
H
H
X
Store
The state of the ERR output before any changes at CLR, LE, or point “P”.
P
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