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PC28F128G18FF 参数 Datasheet PDF下载

PC28F128G18FF图片预览
型号: PC28F128G18FF
PDF下载: 下载PDF文件 查看货源
内容描述: 128MB, 256MB,512MB ,1GB的StrataFlash存储器 [128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory]
分类和应用: 存储
文件页数/大小: 118 页 / 1154 K
品牌: MICRON [ MICRON TECHNOLOGY ]
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128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory  
Extended Configuration Register  
Extended Configuration Register  
The extended configuration register is a volatile 16-bit, read/write register used to select  
deep-power down and output-driver strength of the device.  
Upon power-up or exit from reset, the extended configuration register defaults to  
0004h.  
The extended configuration register is programmed using the PROGRAM EXTENDED  
CONFIGURATION REGISTER command. To read the extended configuration register,  
issue the READ ID command to a partition, and read from <partition base address> +  
06h.  
Table 13: Extended Configuration Register Bit Definitions (Default Value = 0004h)  
Bit  
15:3  
2:0  
Name  
Description  
Reserved  
Write 0 to reserved bits  
Output driver control  
0 0 1 = Code 1  
0 1 0 = Code 2  
0 1 1 = Code 3  
1 0 0 = Code 4 (default)  
1 0 1 = Code 5  
1 1 0 = Code 6  
Other bit settings are reserved  
Output Driver Control  
The output driver control bits of the extended configuration register enable adjustment  
of the device’s output-driver strength for DQ[15:0] and WAIT. Upon power-up or reset,  
ECR[2:0] defaults to 100b for to an output impedance setting of 30 Ohms. To change the  
output-driver strength, program ECR[2:0] to the desired setting.  
Table 14: Output Driver Control Characteristics  
Driver Impedance  
(at VCCQ/2)  
ECR[2:0]  
0 0 1  
Driver Multiplier  
Load (Same Speed)  
90 Ohms  
60 Ohms  
45 Ohms  
30 Ohms  
20 Ohms  
15 Ohms  
1/3  
1/2  
2/3  
1
10pF  
15pF  
20pF  
30pF  
35pF  
40pF  
0 1 0  
0 1 1  
1 0 0  
1 0 1  
1–1/2  
2
1 1 0  
PDF: 09005aef8448483a  
128_256_512_65nm_g18.pdf - Rev. F 8/11 EN  
Micron Technology, Inc. reserves the right to change products or specifications without notice.  
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© 2011 Micron Technology, Inc. All rights reserved.