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AM29F002BB-90EK 参数 Datasheet PDF下载

AM29F002BB-90EK图片预览
型号: AM29F002BB-90EK
PDF下载: 下载PDF文件 查看货源
内容描述: [Flash, 256KX8, 90ns, PDSO32, LEAD FREE, MO-142BBD, TSOP-32]
分类和应用: 光电二极管内存集成电路
文件页数/大小: 40 页 / 1039 K
品牌: CYPRESS [ CYPRESS ]
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D A T A S H E E T  
Command Definitions  
Table 5. Am29F002B/Am29F002NB Command Definitions  
Bus Cycles (Notes 2–4)  
Command  
Sequence  
(Note 1)  
First  
Second  
Third  
Addr  
Fourth  
Fifth  
Sixth  
Addr Data Addr Data  
Data Addr Data Addr Data Addr Data  
Read (Note 5)  
Reset (Note 6)  
Manufacturer ID  
1
1
4
RA  
XXX  
555  
RD  
F0  
AA  
2AA  
2AA  
55  
55  
555  
555  
90  
90  
X00  
X01  
01  
B0  
Device ID,  
4
4
555  
555  
AA  
AA  
Top Boot Block  
Auto-  
select  
Device ID,  
2AA  
2AA  
55  
55  
555  
555  
90  
90  
X01  
34  
(Note 7) Bottom Boot Block  
00  
01  
Sector Protect Verify  
(Note 8)  
(SA)  
X02  
4
555  
AA  
Program  
4
6
6
1
1
555  
555  
AA  
AA  
AA  
B0  
30  
2AA  
2AA  
2AA  
55  
55  
55  
555  
555  
555  
A0  
80  
80  
PA  
PD  
AA  
AA  
Chip Erase  
555  
555  
2AA  
2AA  
55  
55  
555  
SA  
10  
30  
Sector Erase  
555  
Erase Suspend (Note 9)  
Erase Resume (Note 10)  
XXX  
XXX  
Legend:  
X = Don’t care  
PD = Data to be programmed at location PA. Data latches on the  
rising edge of WE# or CE# pulse, whichever happens first.  
RA = Address of the memory location to be read.  
SA = Address of the sector to be verified (in autoselect mode) or  
erased. Address bits A17–A13 uniquely select any sector.  
RD = Data read from location RA during read operation.  
PA = Address of the memory location to be programmed.  
Addresses latch on the falling edge of the WE# or CE# pulse,  
whichever happens later.  
Notes:  
1. See Table 1 for description of bus operations.  
7. The fourth cycle of the autoselect command sequence is a  
read cycle.  
2. All values are in hexadecimal.  
8. The data is 00h for an unprotected sector and 01h for a  
protected sector. See “Autoselect Command Sequence” for  
more information.  
3. Except when reading array or autoselect data, all bus cycles  
are write operations.  
4. Address bits A17–A11 are don’t cares or unlock and  
command cycles, except when PA r SA is required.  
9. The system may read and program in non-erasing sectors, or  
enter the autoselect mode, when in the Erase Suspend  
mode. The Erase Suspend command is valid only during a  
sector erase operation.  
ꢀ. No unlock or command cycles required when reading array  
data.  
6. The Reset command is required to return to reading array  
data when device is in the autoselect mode, or if DQꢀ goes  
high (while the device is providing status data).  
10. The Erase Resume command is valid only during the Erase  
Suspend mode.  
16  
Am29F002B/Am29F002NB  
21527D8 November 17, 2009  
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