W9425G6EH-5 Winbond Electronics, W9425G6EH-5 Datasheet - Page 40

• Manufacturer Part Number: W9425G6EH-5
• Description: IC DDR-400 SDRAM 256MB 66TSSOPII
• Manufacturer: Winbond Electronics

Specifications of W9425G6EH-5

• Format - Memory: RAM
• Memory Type: DDR SDRAM
• Memory Size: 256M (16Mx16)
• Speed: 250MHz
• Interface: Parallel
• Voltage - Supply: 2.3 V ~ 2.7 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 66-TSOPII
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.6 Mode Register Set (MRS) Timing
CLK
CLK
CMD
ADD
* "Reserved" should stay "0" during MRS cycle.
A10
A11
A12
BA0
BA1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
"0"
"0"
"0"
"0"
"0"
"0"
"0"
Addressing Mode
CAS Latency
Burst Length
Mode Register Set
DLL Reset
Register Set data
Extended Mode
Register Set
Reserved
Reserved
MRS
or
- 40 -
t
MRD
A2
A6
1
0
0
0
0
1
1
1
0
1
0
0
0
1
1
1
BA1
0
0
1
1
A1
A3
A5
A8
1
1
0
0
1
1
0
0
1
0
1
0
0
1
0
1
1
0
0
1
BA0
0
1
0
1
A0
A4
0
0
0
1
0
1
0
1
1
0
1
0
1
0
1
1
Publication Release Date:Dec. 03, 2008
Sequential
Reserved
Reserved
NEXT CMD
2
4
8
Extended MRS cycle
Regular MRS cycle
Addressing Mode
MRS or EMRS
CAS Latency
Burst Length
Interleaved
DLL Reset
Sequential
Reserved
Reserved
Reserved
Reserved
W9425G6EH
Yes
2.5
No
3
4
2
Interleaved
Reserved
Reserved
2
4
8
Revision A08