參數(shù)資料
型號(hào): 74ABT833D
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Octal transceiver with parity generator/checker 3-State
中文描述: ABT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝: 7.50 MM, PLASTIC, SOT-137-1, SO-24
文件頁數(shù): 3/11頁
文件大?。?/td> 57K
代理商: 74ABT833D
Philips Semiconductors
Product specification
74ABT833
Octal transceiver with parity generator/checker
(3-State)
1993 Jun 21
3
LOGIC SYMBOL
OEB
OEA
CLEAR
14
1
11
15
10
PARITY
ERROR
CP
13
2
3
4
5
6
7
8
9
A0 A1 A2 A3 A4 A5 A6 A7
B0 B1 B2 B3 B4 B5 B6 B7
23 22 21 20 19 18 17 16
SA00213
FUNCTION TABLE
INPUTS
OUTPUTS
MODE
OEB
OEA
An
Σ
of Highs
Bn + Parity
Σ
of Highs
An
Bn
PARITY
A data to B bus and generate odd parity
output
B data to A bus and check for parity error
1
L
H
Odd
Even
(output)
(input)
An
L
H
H
L
(output)
X
Bn
(input)
(input)
A bus and B bus disabled
2
H
H
X
X
Z
Z
Z
A data to B bus and generate inverted
parity output
L
L
Odd
Even
(output)
(input)
An
H
L
NOTES:
1. Error checking is detailed in the Error Flag Function Table below.
2. When clocked, the error output is Low if the sum of A inputs is even or High if the sum of A inputs is odd.
ERROR FLAG FUNCTION TABLE
INPUTS
Internal node
Output
MODE
CLEAR
CP
Bn + Parity
Σ
of Highs
Point ”P”
Pre–state
ERRORn–1
ERROR
OUTPUT
Sample
H
H
H
X
Odd
Even
X
H
L
X
H
X
L
H
L
L
Hold
H
X
X
X
NC
Clear
L
X
X
X
X
H
H
L
X
NC =
Z
=
=
=
High voltage level steady state
Low voltage level steady state
Don’t care
No change
High impedance ”off” state
Low-to-High clock transition
Not a Low-to-High clock transition
=
=
=
相關(guān)PDF資料
PDF描述
74ABT833DB Octal transceiver with parity generator/checker 3-State
74ABT833N Octal transceiver with parity generator/checker 3-State
74ABT833PW Octal transceiver with parity generator/checker 3-State
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