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參數(shù)資料
| 型號(hào)： | 9348FMQB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 算術(shù)邏輯單元 |
| 英文描述： | 93 SERIES, 12-BIT PARITY GENERATOR/CHECKER, TRUE OUTPUT, CDFP16 |
| 封裝： | CERAMIC, FP-16 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大小： | 91K |
| 代理商： | 9348FMQB |
Functional Description
The 9348 is a 12-input parity generator It provides odd and even parity for up to 12 data bits The Even Parity output (PE) will be
HIGH if an even number of logic ones are present on the inputs The Odd Parity output (PO) will be HIGH if an odd number of
logic ones are present on the inputs The logic equations for the outputs are shown below
PO
PE
e
I0 Z I1 Z I2 Z I3 Z I4 Z I5 Z I6 Z I7 Z I8 Z I9 Z I10 Z I11
Note
Less through delay is encountered from the I0 I1 I2 and I3 inputs than I4 thru I11 inputs Therefore if some signals are slower than others the slower
signals should be applied to these four inputs for maximum speed
Truth Table
Inputs
Outputs
I0 – I11
PO
PE
All Twelve
Inputs LOW
L
H
Any One
Inputs HIGH
H
L
Any Two
Inputs HIGH
L
H
Any Three
Inputs HIGH
H
L
Any Four
Inputs HIGH
L
H
Any Five
Inputs HIGH
H
L
Any Six
Inputs HIGH
L
H
Any Seven
Inputs HIGH
H
L
Any Eight
Inputs HIGH
L
H
Any Nine
Inputs HIGH
H
L
Any Ten
Inputs HIGH
L
H
Any Eleven
Inputs HIGH
H
L
Any Twelve
Inputs HIGH
L
H
H e HIGH Voltage Level
L e LOW Voltage Level
Logic Diagram
TLF9795 – 3
3
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