参数资料
型号: IDT49C465PQF8
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 算术逻辑单元
英文描述: 49C SERIES, 32-BIT ERROR DETECT AND CORRECT CKT, PQFP144
封装: PLASTIC, QFP-144
文件页数: 27/39页
文件大小: 299K
代理商: IDT49C465PQF8
33
IDT49C465/A
32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT
COMMERCIAL TEMPERATURE RANGE
AC TIMING DIAGRAMS—64-BIT CONFIGURATION
Figure 11. 64-Bit Detect Timing
Parameter
Name
Propagation D elay
From
To
Min./
Max.
MO E = H igh to M D OUT D isabled
tMEM xZ
MD IN Set-up to M LE = Low
tMMLS
tMMLH
CBI Set-up to M LE = Low
tC M LS
tCM LH
CBI H old to M LE = Low
max.
min.
BEN
SOE
SYO
Partial Syndrom e O ut
CO R RECTE D D ATAOUT
tM LSY
tC SY
tM SY
MD Lower In to SYOOUT
CBI to SYO
MLE = H igh to SYO
max.
SD 0-31
LOW ER 465
tMLSY
tC SY
tM SY
tBESZx
tSESZx
tBESZx
tSESZx
BEN = H igh to SD OUT Enabled
SO E = Low to SD OUT Enabled
max.
CBI
MLE
MOE
MD (L)
to
1
2
3
4
5
Valid
C heckbits In
to
1234
5
tCM LS
tCM LH
(O UTPU T)
Valid D ATAIN
tM EM xZ
MD IN Hold to M LE = Low
tM M LS
tMMLH
tM LS
(1)
tMLS
(1)
M LE = High to SDOUT
(1)
max.
CBI
Partial Syndrom e In
MER R
ER R
MD (U)
Valid D ATAIN
(O UTPU T)
UPPER 465
3
Inter-chip delay (Design dependent)
tM LME
(1)
tC M E
tM LM E
(1)
tC M E
tMLE
tC E
(1)
tM LE
(1)
tC E
tM ME
tM E
tMME
tM E
CBI to ME RR
CBI to ER R
MLE = H igh to M ER R
MLE = High to ERR
MD IN to ER R
MD IN to M ERR
max.
BO TH
465s
NOTE:
1. Assumes that SystemData is valid at least 3ns before SLE goes HIGH.
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