MC-4532CD647EF-A75 데이터 시트보기 (PDF) - Elpida Memory, Inc
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MC-4532CD647EF-A75
Elpida Memory, Inc
MC-4532CD647EF-A75 Datasheet PDF : 16 Pages
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MC-4532CD647
Serial PD
(1/2)
Byte No.
Function Described
Hex Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Notes
0 Defines the number of bytes written into 80H 1
0
0
0
0
0
0
0 128 bytes
serial PD memory
1 Total number of bytes of serial PD memory
08H 0
0
0
0
1
0
0
0 256 bytes
2 Fundamental memory type
04H 0
0
0
0
0
1
0
0 SDRAM
3 Number of rows
0CH 0
0
0
0
1
1
0
0 12 rows
4 Number of columns
0AH 0
0
0
0
1
0
1
0 10 columns
5 Number of banks
02H 0
0
0
0
0
0
1
0 2 banks
6 Data width
40H 0
1
0
0
0
0
0
0 64 bits
7 Data width (continued)
00H 0
0
0
0
0
0
0
00
8 Voltage interface
01H 0
0
0
0
0
0
0
1 LVTTL
9 CL = 3 Cycle time
75H 0
1
1
1
0
1
0
1 7.5 ns
10 CL = 3 Access time
54H 0
1
0
1
0
1
0
0 5.4 ns
11 DIMM configuration type
00H 0
0
0
0
0
0
0
0 None
12 Refresh rate/type
80H 1
0
0
0
0
0
0
0 Normal
13 SDRAM width
08H 0
0
0
0
1
0
0
0 ×8
14 Error checking SDRAM width
00H 0
0
0
0
0
0
0
0 None
15 Minimum clock delay
01H 0
0
0
0
0
0
0
1 1 clock
16 Burst length supported
8FH 1
0
0
0
1
1
1
1 1, 2, 4, 8, F
17 Number of banks on each SDRAM
04H 0
0
0
0
0
1
0
0 4 banks
18 /CAS latency supported
06H 0
0
0
0
0
1
1
0 2, 3
19 /CS latency supported
01H 0
0
0
0
0
0
0
10
20 /WE latency supported
01H 0
0
0
0
0
0
0
10
21 SDRAM module attributes
00H 0
0
0
0
0
0
0
0
22 SDRAM device attributes : General
0EH 0
0
0
0
1
1
1
0
23 CL = 2 Cycle time
A0H 1
0
1
0
0
0
0
0 10 ns
24 CL = 2 Access time
60H 0
1
1
0
0
0
0
0 6 ns
25-26
00H 0
0
0
0
0
0
0
0
27
tRP(MIN.)
14H 0
0
0
1
0
1
0
0 20 ns
28
tRRD(MIN.)
0FH 0
0
0
0
1
1
1
1 15 ns
29
tRCD(MIN.)
14H 0
0
0
1
0
1
0
0 20 ns
30
tRAS(MIN.)
2DH 0
0
1
0
1
1
0
1 45 ns
31 Module bank density
20H 0
0
1
0
0
0
0
0 128M bytes
10
Data Sheet E0054N20
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