| Part number | DP8404 |
|---|---|
| Manufacturer | National Semiconductor |
| File Size | 495.69 KB |
| Description | Error Detection and Correction Circuits |
| Datasheet |
 DP8404 Datasheet
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| Note |
This datasheet PDF includes multiple part numbers: DP8404, DP8402A. Please refer to the document for exact specifications by model. |
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The DP8402A DP8403 DP8404 and DP8405 devices are 32-bit parallel error detection and correction circuits (EDACs) in 52-pin DP8402A and DP8403 or 48-pin DP8404 and DP8405 600-mil packages The EDACs use a modified Hamming code to generate a 7-bit check word from a 32-bit data word This check word is stored along with the data word during the memory write cycle During the memory read cycle the 39-bit words from memory are processed by the EDACs to determine if errors have occurred in memory Single-
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