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: 24/39页
文件大小: 299K
代理商: IDT49C465PQF8
30
COMMERCIAL TEMPERATURE RANGE
IDT49C465/A
32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT
AC TIMING DIAGRAMS—32-BIT CONFIGURATION
Figure 8. 32-Bit Detect Timing
Parameter
Name
Propagation Delay
From
To
Min./
Max.
MOE - High to M DOUT Disabled
tM EM xZ
MDIN Set-up to M LE = Low
tMMLS
tMMLH
Checkbit Set-up to M LE = Low
tCMLS
tCM LH
Checkbit Hold to M LE = Low
tM SY
MDIN to SYO OUT
tM E
max.
min.
max.
CBI
MLE
SYO
ERR
MOE
MD0-31
to
1
2
3
4
5
Valid
Checkbits In
to
1
234
5
tCM LS
tCM LH
MERR
(O UTPUT)
Valid
DA TAIN
tM EM xZ
MDIN Hold to M LE = Low
tMM LS
tMMLH
tCSY
tM LSY
(1)
tCE
tM LEx
(1)
tMME
tCM E
tMLEM x
(1)
max.
Checkbits in to SYO OUT
M LE = High to S YO OUT
MDIN to ER R = Low
Checkbits in to ERR = Low
M LE = High to E RR = Low
(1)
M LE = H igh to M ER R = Low
MDIN to M ERR = Low
Checkbits in to M ERR = Low
tM LEM x
(1)
tM M E
tCM E
tM SY
tCSY
tM E
tCE
tM LEx
(1)
tM LSY
(1)
NOTE:
1. Assumes that Memory Data and Checkbits are valid at least 3ns before MLE goes HIGH.
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