IDT49C460 데이터 시트보기 (PDF) - Integrated Device Technology
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IDT49C460 Datasheet PDF : 32 Pages
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IDT49C460/A/B/C/D/E
32-BIT CMOS ERROR DETECTION AND CORRECTION UNIT
MILITARY AND COMMERCIAL TEMPERATURE RANGES
GENERATE MODE (FROM DETECT OR CORRECTION MODE)
Propagation Delay
From
To
Min./Max.
OE byte
DATA Bus
CBIN
0
6
(Output)
CODE ID 1,0 = 10
0
7
Valid DATA IN
10
Valid Checkbits In
OE byte = High to DATAOUT Disabled
OE byte = High to DATAOUT Disabled
OE byte = Low to DATAOUT Enabled
OE byte = Low to DATAOUT Enabled
OUT
CBIN to DATAOUT
Min.
Max.
Min.
Max.
Max.
LEIN
LEOUT/GEN
ERR/MERR
(CODE ID 1,0 = 10)
(Generate Mode)
7
13
11
16*
9
LEOUT/GENERATE = Low to
ERROR = High
LEOUT/GENERATE = Low to SCOUT
DATAIN to SCOUT
*LEIN = High to SCOUT*
CBIN to SCOUT
(Forced High)
Max.
Max.
Max.
Max.
Max.
OESC
0
6
SCOUT
CORRECT
0
7
Valid Checkbits
OESC = High to SCOUT Disabled
OESC = High to SCOUT Disabled
OESC = Low to SCOUT Enabled
OESC = Low to SCOUT Enabled
(Check Bits Exit)
(Don't Care)
NOTES:
1. BOLD indicates critical parameters.
2. Valiid "DATA" and valid CBIN" are shown to occur simultaneously, since both buses are latched and opened by the "LEIN" input.
3. This is "E" version timing spec. Check appropriate table for other speed versions.
* Assumes DATA bus becomes input 4ns before LEIN goes high.
Min.
Max.
Min.
Max.
2584 drw 09
11.6
30
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