EBJ10EE8BAFA Datasheet, PDF (6/18 Pages) Elpida Memory – 1GB Unbuffered DDR3 SDRAM DIMM

EBJ10EE8BAFA
Serial PD Matrix
Byte No. Function described
0
Number of serial PD bytes written/SPD
device size/CRC coverage
1
SPD revision
Hex
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 value Comments
1 0 0 1 0 0 1 0 92H 176/256/0-116
0 0 0 1 0 0 0 0 10H Revision 1.0
2
Key byte/DRAM device type
0 0 0 0 1 0 1 1 0BH DDR3 SDRAM
3
Key byte/module type
4
SDRAM density and banks
0 0 0 0 0 0 1 0 02H Unbuffered
0 0 0 0 0 0 1 0 02H 1G bits, 8 banks
5
SDRAM addressing
0 0 0 1 0 0 0 1 11H 14 rows, 10 columns
6
Module nominal voltage, VDD
7
Module organization
8
Module memory bus width
0 0 0 0 0 0 0 0 00H 1.5V
0 0 0 0 0 0 0 1 01H 1 rank/×8 bits
0 0 0 0 1 0 1 1 0BH 72 bits/ECC
9
Fine timebase (FTB) dividend/divisor
0 1 0 1 0 0 1 0 52H 5/2
10
Medium timebase (MTB) dividend
11
Medium timebase (MTB) divisor
SDRAM minimum cycle time
12
(tCK (min.))
-DJ
-AE
0 0 0 0 0 0 0 1 01H 1
0 0 0 0 1 0 0 0 08H 8
0 0 0 0 1 1 0 0 0CH 1.5ns
0 0 0 0 1 1 1 1 0FH 1.875ns
-8C
0 0 0 1 0 1 0 0 14H 2.5ns
13
Reserved
0 0 0 0 0 0 0 0 00H —
14
SDRAM /CAS latencies supported, LSB
-DJ
0
0
1
1
1
1
0
0
3CH CL = 6, 7, 8, 9
-AE
0 0 0 1 1 1 0 0 1CH CL = 6, 7, 8
-8C
0 0 0 0 0 1 0 0 04H CL = 6
15
SDRAM /CAS latencies supported, MSB 0 0 0 0 0 0 0 0 00H —
SDRAM minimum /CAS latencies time
16
(tAA (min.))
0 1 1 0 1 0 0 1 69H 13.125ns
-DJ, -AE
-8C
0 1 1 1 1 0 0 0 78H 15ns
17
SDRAM write recovery time (tWR)
0 1 1 1 1 0 0 0 78H 15ns
SDRAM minimum /RAS to /CAS delay
18
(tRCD)
0 1 1 0 1 0 0 1 69H 13.125ns
-DJ, -AE
-8C
0 1 1 1 1 0 0 0 78H 15ns
SDRAM minimum row active to row active
19
delay (tRRD)
0 0 1 1 0 0 0 0 30H 6ns
-DJ
-AE
0 0 1 1 1 1 0 0 3CH 7.5ns
-8C
0 1 0 1 0 0 0 0 50H 10ns
SDRAM minimum row precharge time
20
(tRP)
0 1 1 0 1 0 0 1 69H 13.125ns
-DJ, -AE
-8C
0 1 1 1 1 0 0 0 78H 15ns
21
SDRAM upper nibbles for tRAS and tRC 0 0 0 1 0 0 0 1 11H
SDRAM minimum active to precharge time
22
(tRAS), LSB
0 0 1 0 0 0 0 0 20H 36ns
-DJ
-AE, -8C
0 0 1 0 1 1 0 0 2CH 37.5ns
Data Sheet E1237E40 (Ver. 4.0)
6