参数资料
型号: W949D6CBHX5E
厂商: Winbond Electronics
文件页数: 7/60页
文件大小: 0K
描述: IC LPDDR SDRAM 512MBIT 60VFBGA
标准包装: 312
格式 - 存储器: RAM
存储器类型: 移动 LPDDR SDRAM
存储容量: 512M(32Mx16)
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: 60-TFBGA
供应商设备封装: 60-VFBGA(8x9)
包装: 托盘
W949D6CB / W949D2CB
512Mb Mobile LPDDR
SIGNAL NAME
TYPE
FUNCTION
DESCRIPTION
CKE HIGH activates, and CKE LOW deactivates internal clock
signals, and device input buffers and output drivers. Taking CKE
LOW provides PRECHARGE, POWER DOWN and SELF
REFRESH operation (all banks idle), or ACTIVE POWER DOWN
CKE
Input
Clock Enable
(row ACTIVE in any bank). CKE is synchronous for all functions
except for SELF REFRESH EXIT, which is achieved
asynchronously. Input buffers, excluding CK, CK and CKE, are
disabled during power down and self refresh mode which are
contrived for low standby power consumption.
LDQS, UDQS
(x16);
DQS0~DQS3
(x32)
VDD
VSS
VDDQ
VSSQ
NC
I/O
Supply
Supply
Supply
Supply
-
Data Strobe
Power
Ground
Power for I/O
Buffer
Ground for I/O
Buffer
Non Connect
Output with read data, input with write data. Edge-aligned with
read data, centered with write data. Used to capture write data.
x16: LDQS: DQ0~DQ7; UDQS: DQ8~DQ15.
x32: DQS0: DQ0~DQ7; DQS1: DQ8~DQ15;
DQS2: DQ16~DQ23; DQS3: DQ24~DQ31.
Power supply for input buffers and internal circuit.
Ground for input buffers and internal circuit.
Power supply separated from VDD, used for output drivers to
improve noise.
Ground for output drivers.
Non connection pin.
4.2 Addressing Table
ITEM
Number of banks
Bank address pins
Auto precharge pin
Row addresses
512 Mb
4
BA0,BA1
A10/AP
A0-A12
X16
x32
Column addresses
tREFI(μs)
Row addresses
Column addresses
tREFI(μs)
-7-
A0-A9
7.8
A0-A12
A0-A8
7.8
Publication Release Date: Sep, 21, 2011
Revision A01-007
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