MC-458CB646 Datasheet, PDF (11/16 Pages) NEC – 8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE

MC-458CB646
Byte No.
Function Described
32 Command and address signal input
setup time
33 Command and address signal input
hold time
34 Data signal input setup time
35 Data signal input hold time
36-61
62 SPD revision
63 Checksum for bytes 0 - 62
-A80
-A10
64-71 Manufacture’s JEDEC ID code
72 Manufacturing location
73-90 Manufacture’s P/N
91-92 Revision code
93-94 Manufacturing date
95-98 Assembly serial number
99-125 Mfg specific
126 Intel specification frequency
127 Intel specification /CAS
-A80
latency support
-A10
(2/2)
Hex Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Notes
20H 0
0
1
0
0
0
0
0 2 ns
10H 0
0
0
1
0
0
0
0 1 ns
20H 0
0
1
0
0
0
0
0 2 ns
10H 0
0
0
1
0
0
0
0 1 ns
00H 0
0
0
0
0
0
0
0
12H 0
0
0
1
0
0
1
0 1.2
E7H 1
1
1
0
0
1
1
1
4DH 0
1
0
0
1
1
0
1
64H 0
1
1
0
0
1
0
0 100 MHz
A7H 1
0
1
0
0
1
1
1
A5H 1
0
1
0
0
1
0
1
Timing Chart
Refer to the SYNCHRONOUS DRAM MODULE TIMING CHART Information (M13348E).
Data Sheet M13049EJ7V0DS00
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