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IDT49C460EJB Datasheet(PDF) 11 Page - Integrated Device Technology

Part # IDT49C460EJB
Description  32-BIT CMOS ERROR DETECTION AND CORRECTION UNIT
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT49C460EJB Datasheet(HTML) 11 Page - Integrated Device Technology

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IDT49C460/A/B/C/D/E
32-BIT CMOS ERROR DETECTION AND CORRECTION UNIT
MILITARY AND COMMERCIAL TEMPERATURE RANGES
Bit
Internal Function
0–7
DON'T CARE
8
CODE ID0 LOWER 32-BIT
9
CODE ID1 LOWER 32-BIT
10
DIAG MODE0 LOWER 32-BIT
11
DIAG MODE1 LOWER 32-BIT
12
CORRECT LOWER 32-BIT
13–31
DON'T CARE
32
CB0 DIAGNOSTIC
33
CB1 DIAGNOSTIC
34
CB2 DIAGNOSTIC
35
CB3 DIAGNOSTIC
36
CB4 DIAGNOSTIC
37
CB5 DIAGNOSTIC
38
CB6 DIAGNOSTIC
39
CB7 DIAGNOSTIC
40
CODE ID0 UPPER 32-BIT
41
CODE ID1 UPPER 32-BIT
42
DIAG MODE0 UPPER 32-BIT
43
DIAG MODE1 UPPER 32-BIT
44
CORRECT UPPER 32-BIT
45–63
DON'T CARE
2584 tbl 10
Table 8B. 64-Bit Diagnostic Latch–Coding Format (Diagnostic and Correct Mode)
Hex
01
2
3
45
67
89A
B
C
D
E
F
S7
00
0
0
00
00
11
1
1
11
1
1
Syndrome
S6
00
0
0
11
11
00
0
0
11
1
1
Bits
S5
00
1
1
00
11
00
1
1
00
1
1
S4
01
0
1
01
01
01
0
1
01
0
1
Hex
S3
S2
S1
S0
0
0
0
0
0
*
C4
C5
T
C6
T
T
62
C7
T
T
46
T
M
M
T
1
0
0
0
1
C0
T
T
14
T
MMT
TMM
T
MT
T
30
20
01
0
C1
T
T
M
T
34
56
T
T
50
40
T
M
T
T
M
3
0
0
1
1
T
18
8
T
MT
TMMT
TM
T
2
24
T
4
0
1
0
0
C2
T
T
15
T
35
57
T
T
51
41
T
M
T
T
31
5
0
1
0
1
T
19
9
T
M
T
T
63
M
T
T
47
T
3
25
T
6
0
1
1
0
T
20
10
T
M
T
T
M
M
T
T
M
T
4
26
T
7
0
1
1
1
M
T
T
M
T
36
58
T
T
52
42
T
M
T
T
M
81
00
0
C3
T
T
M
T
37
59
T
T
53
43
T
M
T
T
M
9
1
0
0
1
T
21
11
T
M
T
T
M
M
T
T
M
T
5
27
T
A
1
0
1
0
T
22
12
T
33
T
T
M
49
T
T
M
T
6
28
T
B
1
0
1
1
17T
T
M
T
38
60T
T
54
44
T
1
T
T
M
C
1
1
0
0
T
23
13
T
M
T
T
M
M
T
T
M
T
7
29
T
D
1
1
0
1
M
T
T
M
T
39
61
T
T
55
45
T
M
T
T
M
E
1
1
1
0
16
T
TM
TMMT
TMM
T
0
T
T
M
F
1
1
1
1
T
MM
T
32
T
TM
48
T
T
M
T
MM
T
NOTES:
2584 tbl 11
* = No errors detected
T = Two errors detected
Number = The number of the single bit-in-error
M = Three or more errors detected
Table 9. Syndrome Decode to Bit–In–Error (64–Bit Configuration)


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