參數資料
型號: IDT49C465PQF8
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 算術邏輯單元
英文描述: 49C SERIES, 32-BIT ERROR DETECT AND CORRECT CKT, PQFP144
封裝: PLASTIC, QFP-144
文件頁數: 29/39頁
文件大小: 299K
代理商: IDT49C465PQF8
35
IDT49C465/A
32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT
COMMERCIAL TEMPERATURE RANGE
AC TIMING DIAGRAMS—64-BIT CONFIGURATION
Parameter
Name
Propagation Delay
From
To
Min./
Max.
MOE = High to MDOUT Disabled
tMEM xZ
MDIN Set-up to M LE = Low
tM M LS
tM M LH
CBI Set-up to M LE = Low
tCM LS
tCMLH
CBI H old to M LE = Low
max.
min.
CBI
MLE
PLE
BEN
MOE
MD0-31
to
1
2
3
4
5
to
12
34
5
(OUTPUT)
Valid
DATA IN
tM EM xZ
MDIN Hold to M LE = Low
tMMLS
tM M LH
SOE
P0-3
Parity Out
CORRECTE D DATAOUT
tSEP
tBEPZx
tPLP
tM LP
tM P
tMLP
tPLP
tBEPZx
tSEP
MDIN to Parity Out
M LE = High to P arity O ut
PLE = Low to Parity Out
BEN = High to Parity Out
SOE = Low to Parity Out
max.
SD0-31
SYO
Partial Checkbits/Syndrom e Out
tM S
MDIN to Corrected SDOUT
max.
tM LS
(1)
tPLS
(1)
tMLS
(1)
tPLS
(1)
tBESZx
tSESZx
tCS
tBESZx
tSESZx
MLEIN = High to SDOUT
(1)
PLE = Low to SDOUT
(1)
BEN = High to SDOUT Enabled
SOE = Low to SDOUT Enabled
CBI to Corrected SDOUT
max.
tM SY
tM S Y
MDIN to Corrected SDOUT
max.
Valid DATAIN
tCBI
64-BIT
U/L Slice
Figure 13. 64-Bit Correct Timing (Upper Slice)
NOTE:
1. Assumes that Memory Data and Checkbits are valid at least 4ns before MLE goes HIGH.
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