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ES29F320FT-70WC 参数 Datasheet PDF下载

ES29F320FT-70WC图片预览
型号: ES29F320FT-70WC
PDF下载: 下载PDF文件 查看货源
内容描述: 16兆( 2M ×8 / 1M ×16 )的CMOS 3.0伏只,引导扇区闪存 [16Mbit(2M x 8/1M x 16) CMOS 3.0 Volt-only, Boot Sector Flash Memory]
分类和应用: 闪存
文件页数/大小: 53 页 / 700 K
品牌: EXCELSEMI [ EXCEL SEMICONDUCTOR INC. ]
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E S I  
E S I  
Excel Semiconductor inc.  
AUTOSELECT COMMAND  
BYTE / WORD PROGRAM  
The autoselect command sequence allows the host  
system to access the manufacturer and device  
codes, and determine whether or not a sector is  
protected, including information about factory-  
locked or customer lockable version.  
The system may program the device by word or  
byte, depending on the state of the BYTE# pin.  
Programming is a four-bus-cycle operation. The  
program command sequence is initiated by writing  
two unlock write cycles, followed by the program  
set-up command. The program address and data  
are written next, which in turn initiate the Embedded  
Program algorithm. The system is not required to  
provide further controls or timings. The device auto-  
matically provides internally generated program  
pulses and verifies the programmed cell margin.  
Table 9 shows the address and data requirements  
for the byte program command sequence. Note that  
the autoselect and CFI modes are unavailable  
while a programming operation is in progress.  
Identifier Code  
Manufacturer ID  
Device ID  
Address  
00h  
Data  
4Ah  
01h  
C4h(T),  
49h(B)  
Sector Protect Verify  
(SA)02h  
00 / 01  
Table 9 shows the address and data requirements.  
This method is an alternative to “A9 high-voltage  
method” shown in Table 2, which is intended for  
PROM programmers and requires V on address  
ID  
pin A9. The autoselect command sequence may be  
written to an address within sector that is either in  
the read mode or erase-suspend-read mode. The  
auto-select command may not be written while the  
device is actively programming or erasing. The  
autoselect command sequence is initiated by first  
writing two unlock cycles. This is followed by a third  
write cycle that contains the autoselect command.  
The device then enters the autoselect mode. The  
system may read at any address any number of  
times without initiating another autoselect com-  
mand sequence.  
START  
Write Program Com-  
mand Sequence  
Embedded  
Program  
algorithm in  
progress  
Data Poll  
from System  
Once after the device enters the auto-select mode,  
the manufacture ID code ( 4Ah ) can be accessed  
by one of two ways. Just one read cycle ( with A6,  
A1 and A0 = 0 ) can be used. Or four consecutive  
read cycles ( with A6 = 1 and A1, A0 = 0 ) for con-  
tinuation codes (7Fh) and then another last cycle  
for the code (4Ah) (with A6, A1 and A0 = 0) can be  
used for reading the manufacturer code.  
No  
Verify Data  
?
Yes  
No  
Last Address?  
Yes  
Increment Address  
- 4Ah (one-cycle read)  
- 7Fh 7Fh 7Fh 7Fh 4Ah (Five-cycle read)  
Programming  
Completed  
The system must write the reset command to return  
to the read mode (or erase-suspend-read mode if  
the device was previously in Erase Suspend).  
Note: See Table 9 for program command sequence  
Figure 6. Program Operation  
20  
Rev. 0B January 5 , 2006  
ES29LV160E  
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