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参数资料
| 型号： | W949D2CBJX5E |
| 厂商： | Winbond Electronics |
| 文件页数： | 19/60页 |
| 文件大小： | 0K |
| 描述： | IC LPDDR SDRAM 512MBIT 90VFBGA |
| 标准包装： | 240 |
| 格式 - 存储器： | RAM |
| 存储器类型： | 移动 LPDDR SDRAM |
| 存储容量： | 512M（16M x 32） |
| 速度： | 200MHz |
| 接口： | 并联 |
| 电源电压： | 1.7 V ~ 1.95 V |
| 工作温度： | -25°C ~ 85°C |
| 封装/外壳： | 90-TFBGA |
| 供应商设备封装： | 90-VFBGA（8x13） |
| 包装： | 托盘 |
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W949D6CB / W949D2CB
512Mb Mobile LPDDR
6.8 Partial Array Self Refresh
With partial array self refresh (PASR), the self refresh may be restricted to a variable portion of the total array. The
whole array (default), 1/2 array, or 1/4 array could be selected. Data outside the defined area will be lost. Address
bits A0 to A2 are used to set PASR.
6.9 Automatic Temperature Compensated Self Refresh
The device has an Automatic Temperature Compensated Self Refresh feature. It automatically adjusts the refresh
rate based on the device temperature without any register update needed. To maintain backward compatibility, this
device which have Automatic TCSR, ignore (don?t care) the inputs to address bits A3 and A4 during EMRS
programming.
6.10 Output Drive Strength
The drive strength could be set to full, half or three-quarter strength via address bits A5 and A6. The half drive
strength option is intended for lighter loads or point-to-point environments.
6.11 Commands
All commands (address and control signals) are registered on the positive edge of clock (crossing of CK going high
and CK going low).
6.11.1 Basic Timing Parameters for Commands
CK
t CK
t CH
t CL
CK
t IS
t IH
Input
Valid
Valid
Valid
NOTE: Input = A0 – An, BA0, BA1, CKE, CS, RAS, CAS, WE;
- 19 -
: Don't Care
Publication Release Date: Sep, 21, 2011
Revision A01-007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W949D2CBJX5ETR | 制造商:Winbond Electronics Corp 功能描述:512M MDDR, X32, 200MHZ |
| W949D2CBJX5I | 制造商:Winbond Electronics Corp 功能描述:DRAM Chip Mobile LPDDR SDRAM 512M-Bit 16Mx32 1.8V 90-Pin VFBGA |
| W949D2CBJX5I TR | 制造商:Winbond Electronics Corp 功能描述:512M MDDR, X32, 200MHZ, INDUST |
| W949D2CBJX6E | 制造商:Winbond Electronics Corp 功能描述:DRAM Chip Mobile LPDDR SDRAM 512M-Bit 16Mx32 1.8V 90-Pin VFBGA |
| W949D2CBJX6ETR | 制造商:Winbond Electronics Corp 功能描述:512M MDDR, X32, 166MHZ, 65NM |
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