W9751G6IB-25 Winbond Electronics, W9751G6IB-25 Datasheet - Page 17

• Manufacturer Part Number: W9751G6IB-25
• Description: IC DDR2-800 SDRAM 512MB 84-WBGA
• Manufacturer: Winbond Electronics

Specifications of W9751G6IB-25

• Format - Memory: RAM
• Memory Type: DDR2 SDRAM
• Memory Size: 512M (32Mx16)
• Speed: 2.5ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 84-WBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For proper operation of adjust mode, WL = RL - 1 = AL + CL - 1 clocks and t
shown in Figure 7. For input data pattern for adjustment, D
by burst type (i.e., sequential or interleave).
7.2.3.3
Drive mode, both Drive (1) and Drive (0), is used for controllers to measure DDR2 SDRAM Driver
impedance. In this mode, all outputs are driven out t
output drivers are turned-off t
CLK
CLK
CMD
DQS_in
DQ_in
DM
Drive Mode
EMRS
EMRS(1)
OCD adjust mode
WL
NOP
NOP
OIT
tDS tDH
DT0
NOP
after “OCD calibration mode exit” command as shown in Figure 8.
NOP
DT1 DT2 DT3
Figure 7—OCD Adjust Mode
Figure 8—OCD Drive Mode
DQS
NOP
NOP
- 17 -
NOP
NOP
OIT
after “enter drive mode” command and all
T0
OCD calibration mode exit
- D
NOP
NOP
T3
Publication Release Date: Oct. 23, 2009
WR
is a fixed order and is not affected
NOP
NOP
DS
/t
W9751G6IB
DH
EMRS
should be met as
Revision A06
NOP