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參數(shù)資料
| 型號： | 933829010602 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 算術(shù)邏輯單元 |
| 英文描述： | F/FAST SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14 |
| 封裝： | 3.90 MM, PLASTIC, MS-012AB, SOT-108-1, SO-14 |
| 文件頁數(shù)： | 11/11頁 |
| 文件大?。?/td> | 165K |
| 代理商： | 933829010602 |
Philips Semiconductors - PIP - 74F280B; 9-bit odd/even parity generator/checker
Product Information
74F280B; 9-bit
odd/even parity
generator/checker
Information as of 2003-04-22
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topGeneral description
The 74F280B is a 9-bit Parity Generator or Checker commonly used to detect errors in high speed data
transmission or data retrieval systems. Both Even (
∑
E) and Odd (∑O) parity outputs are available for generating
or checking even or odd parity on up to 9 bits.
The Even (
∑
E) parity output is High when an even number of Data inputs (I0 - I8) are High. The Odd (∑O) parity
output is High when an odd number of Data inputs are High.
Expansion to larger word sizes is accomplished by tying the Even (
∑
E) outputs of up to nine parallel devices to
the data inputs of the final stage. This expansion scheme allows an 81-bit data word to be checked in less than
20ns.
topFeatures
q
High-impedance NPN base inputs for reduced loading (20A in Low and High states)
q
Buffered inputs - one normalized load
q
Word length easily expanded by cascading
q
Industrial temperature range available (-40°C to +85°C)
topApplications
AN202_1: Testing and specifying FAST logic (date 01-Jun-87)
AN2021_1: Thermal considerations for FAST logic products (date 13-Mar-95)
AN203_2: Test Fixtures for High Speed Logic (date 02-Apr-98)
AN216_2: Arbitration in shared resource systems (date 18-Jul-88)
file:///G|/imaging/BITTING/CPL/20030424/04232003_9/PHGL/_HTML04232003/N74F280BN.html (1 of 3) [Apr-30-2003 3:12:19 PM]
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