W9425G6EH-5 Winbond Electronics, W9425G6EH-5 Datasheet - Page 41

• 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

11.7 Extend Mode Register Set (EMRS) Timing
CLK
CMD
CLK
ADD
*“Reserved＂should stay“0＂during EMRS cycle
A11
A12
A10
BA0
BA1
A0
A2
A4
A5
A1
A3
A6
A7
A8
A9
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
" 0 "
Buffer Strength
Mode Register Set
Buffer Strength
Register Set data
Extended Mode
DLL Switch
Register Set
Reserved
Reserved
EMRS
or
t
MRD
- 41 -
BA1
A6
0
0
1
1
0
0
1
1
A0
0
1
BA0
A1
0
1
0
1
0
1
0
1
Publication Release Date:Dec. 03, 2008
Extended MRS cycle
NEXT CMD
Regular MRS cycle
100% Strength
30% Strength
MRS or EMRS
Buffer Strength
60% Strength
Reserved
DLL Switch
Disable
Enable
W9425G6EH
Revision A08