參數(shù)資料
型號(hào): 74ACT11853
廠商: Texas Instruments, Inc.
英文描述: 8-Bit to 9-Bit Parity Bus Transceiver(8位-9位奇偶總線收發(fā)器)
中文描述: 8位9位奇偶總線收發(fā)器(8位-9位奇偶總線收發(fā)器)
文件頁(yè)數(shù): 3/8頁(yè)
文件大?。?/td> 82K
代理商: 74ACT11853
54ACT11853, 74ACT11853
8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3
logic diagram (positive logic)
FUNCTION TABLE
INPUTS
OUTPUT AND I/O
FUNCTION
OEB
OEA
CLR
LE
Ai
of H’s
Odd
Even
Bi
of H’s
A
B
PARITY
ERR
L
H
X
X
NA
NA
A
L
H
NA
A data to B bus and
Generate Parity
B data to A bus and
Check Parity
Store Error Flag
Clear Error Flag Register
H
L
X
L
NA
Odd
Even
X
X
B
NA
NA
H
L
H
X
L
X
H
L
H
L
X
X
H
H
H
H
L
L
NA
X
X
X
L Odd
H Even
Odd
Even
X
X
NA
NA
NA
NA
NC
H
NC
H
H
L
H
H
X
Z
Z
Z
Isolation
(Parity check)
L
L
X
X
NA
NA
A
H
L
NA
A Data to B Bus and
Generate Inverted Parity
NA = Not applicable, NC = No change, X = Don’t care
Summation of high-level inputs includes PARITY along with Bi inputs.
Output states shown assume the ERR output was previously high.
§In this mode, the ERR output, when enabled, shows inverted parity of the A bus.
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