参数资料
型号: W9751G6KB-25
厂商: Winbond Electronics
文件页数: 83/87页
文件大小: 0K
描述: IC DDR2 SDRAM 512MBIT 84WBGA
标准包装: 209
格式 - 存储器: RAM
存储器类型: DDR2 SDRAM
存储容量: 512M(32Mx16)
速度: 2.5ns
接口: 并联
电源电压: 1.7 V ~ 1.9 V
工作温度: 0°C ~ 85°C
封装/外壳: 84-TFBGA
供应商设备封装: 84-WBGA(8x12.5)
包装: 托盘
W9751G6KB
11.27 Burst write with Auto-precharge (WR + t RP Limit): WL=4, WR=2, BL=4,
t RP =3
T0
T3
T4
T5
T6
T7
T8
T9
T11
CLK/CLK
CMD
Post CAS
WRA Bank A
NOP
NOP
NOP
NOP
NOP
NOP
NOP
Bank A
Activate
A10 = 1
Completion of the Burst Write
Auto-precharge Begins
DQS,
DQS
WL = RL - 1 = 4
≥ WR
t RP min.
DQ's
DIN
A0
DIN
A1
DIN
A2
DIN
A3
≥ t RC
11.28 Self Refresh Timing
T0
T1
T2
T3
T4
T5
T6
Tm
Tn
t CK
CLK
CLK
t CH
t CL
CKE
t RP
V IL(ac)
V IH(ac)
≥ t XSNR
≥ t XSRD
ODT
V IL(ac)
t AOFD
t IS
t IH
t IS
t IH
tIS
t IH
t IS t IH
CMD
V IH(ac)
V IL(ac)
Self
Refresh
V IH(dc)
V IL(dc)
NOP
Non-Read
Command
NOP
Read
Command
Notes:
1. Device must be in the “All banks idle” state prior to entering Self Refresh mode .
2. ODT must be turned off t AOFD before entering Self Refresh mode, and can be turned on again when t XSRD timing is
satisfied.
3. t XSRD is applied for a Read or a Read with Auto-precharge command. t XSNR is applied for any command except a Read or a
Read with Auto-precharge command.
Publication Release Date: Sep. 03, 2012
- 83 -
Revision A04
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