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S29GL064N90TFI070 参数 Datasheet PDF下载

S29GL064N90TFI070图片预览
型号: S29GL064N90TFI070
PDF下载: 下载PDF文件 查看货源
内容描述: 64兆, 32兆3.0伏只页面模式闪存设有110纳米的MirrorBit工艺技术 [64 Megabit, 32 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 110 nm MirrorBit Process Technology]
分类和应用: 闪存
文件页数/大小: 79 页 / 3123 K
品牌: SPANSION [ SPANSION ]
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D a t a S h e e t  
Figure 10.6 Toggle Bit Algorithm  
START  
Read DQ7–DQ0  
Read DQ7–DQ0  
No  
Toggle Bit  
= Toggle?  
Yes  
No  
DQ5 = 1?  
Yes  
Read DQ7–DQ0  
Twice  
Toggle Bit  
= Toggle?  
No  
Yes  
Program/Erase  
Operation Not  
Complete, Write  
Reset Command  
Program/Erase  
Operation Complete  
Note  
The system should recheck the toggle bit even if DQ5 = 1 because the toggle bit may stop toggling as DQ5 changes to 1. See the  
subsections on DQ6 and DQ2 for more information.  
10.14 DQ2: Toggle Bit II  
The “Toggle Bit II” on DQ2, when used with DQ6, indicates whether a particular sector is actively erasing (that  
is, the Embedded Erase algorithm is in progress), or whether that sector is erase-suspended. Toggle Bit II is  
valid after the rising edge of the final WE# pulse in the command sequence.  
DQ2 toggles when the system reads at addresses within those sectors that were selected for erasure. (The  
system may use either OE# or CE# to control the read cycles.) But DQ2 cannot distinguish whether the  
sector is actively erasing or is erase-suspended. DQ6, by comparison, indicates whether the device is  
actively erasing, or is in Erase Suspend, but cannot distinguish which sectors are selected for erasure. Thus,  
both status bits are required for sector and mode information. Refer to Table 10.5 on page 60 to compare  
outputs for DQ2 and DQ6.  
58  
S29GL-N MirrorBit® Flash Family  
S29GL-N_01_09 November 16, 2007