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IDT49C465 Datasheet(PDF) 32 Page - Integrated Device Technology |
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IDT49C465 Datasheet(HTML) 32 Page - Integrated Device Technology |
32 / 38 page ![]() 11.7 32 IDT49C465/A 32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT MILITARY AND COMMERCIAL TEMPERATURE RANGES AC TIMING DIAGRAMS — 64-BIT CONFIGURATION NOTE: 2552 drw 23 1. Assumes that System Data is valid at least 3ns (Com.)/4ns (Mil.) before SLE goes HIGH. Figure 11. 64-Bit Detect Timing t CMLH MLE MD (L) MOE min. Parameter Name Propagation Delay From To Min./ Max. (OUTPUT) CBI Valid Checkbits In t CMLS t MMLH t MMLS t MEMxZ t MLS t CMLH t CMLS t MMLH t MMLS t MEMxZ CBI Hold to MLE = Low CBI Set-up to MLE = Low MDIN Hold to MLE = Low MDIN Set-up to MLE = Low MOE = High to MDOUT Disabled min. min. min. max. t BESZx t SESZx Corrected DATAOUT Partial Syndrome Out t MLS t BESZx t SESZx MLE = High to SDOUT BEN = High to SDOUT Enabled SOE = Low to SDOUT Enabled max. max. max. BEN SOE SD0–31 SYO MD (U) (OUTPUT) t MSY t CSY t MLSY t CME t MLME t CE t MLE t MME t ME 3 LOWER 465 UPPER 465 Partial Syndrome In t MSY t CSY t MLSY t CME t MLME t CE t MLE t MME t ME MD Lower In to SYOOUT CBI to SYO MLE = High to SYO CBI to MERR MLE = High to MERR CBI to ERR MLE = High to ERR MDIN to MERR MDIN to ERR Inter-chip delay (Design dependent) max. max. max. max. max. max. max. max. max. CBI MERR ERR BOTH 465s to 1 2 3 4 5 to 1 2 3 4 5 (1) (1) (1) (1) (1) (1) (1) Valid DATAIN Valid DATAIN |
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