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AM29F010B70EC 参数 Datasheet PDF下载

AM29F010B70EC图片预览
型号: AM29F010B70EC
PDF下载: 下载PDF文件 查看货源
内容描述: 1兆位( 128千×8位) CMOS 5.0伏只,统一部门快闪记忆体 [1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory]
分类和应用:
文件页数/大小: 35 页 / 821 K
品牌: SPANSION [ SPANSION ]
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The device enters the CMOS standby mode when the  
CE# pin is held at VCC ± 0.5 V. (Note that this is a more  
restricted voltage range than VIH.) The device enters  
the TTL standby mode when CE# is held at VIH. The  
device requires the standard access time (tCE) before  
it is ready to read data.  
Program and Erase Operation Status  
During an erase or program operation, the system may  
check the status of the operation by reading the status  
bits on DQ7–DQ0. Standard read cycle timings and ICC  
read specifications apply. Refer to “Write Operation  
Status” for more information, and to each AC Charac-  
teristics section in the appropriate data sheet for timing  
diagrams.  
If the device is deselected during erasure or program-  
ming, the device draws active current until the  
operation is completed.  
Standby Mode  
ICC3 in the DC Characteristics tables represents the  
standby current specification.  
When the system is not reading or writing to the device,  
it can place the device in the standby mode. In this  
mode, current consumption is greatly reduced, and the  
outputs are placed in the high impedance state, inde-  
pendent of the OE# input.  
Output Disable Mode  
When the OE# input is at VIH, output from the device is  
disabled. The output pins are placed in the high imped-  
ance state.  
Table 2. Am29F010B Sector Addresses Table  
A15 A14  
Sector  
SA0  
SA1  
SA2  
SA3  
SA4  
SA5  
SA6  
SA7  
A16  
0
Address Range  
00000h-03FFFh  
04000h-07FFFh  
08000h-0BFFFh  
0C000h-0FFFFh  
10000h-13FFFh  
14000h-17FFFh  
18000h-1BFFFh  
1C000h-1FFFFh  
0
0
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
0
1
1
1
1
Note: All sectors are 16 Kbytes in size.  
Autoselect Mode  
The autoselect mode provides manufacturer and de-  
vice identification, and sector protection verification,  
through identifier codes output on DQ7–DQ0. This  
mode is primarily intended for programming equipment  
to automatically match a device to be programmed with  
its corresponding programming algorithm. However,  
the autoselect codes can also be accessed in-system  
through the command register.  
on the appropriate highest order address bits. Refer to  
the corresponding Sector Address Tables. The Com-  
mand Definitions table shows the remaining address  
bits that are don’t care. When all necessary bits have  
been set as required, the programming equipment may  
then read the corresponding identifier code on DQ7–  
DQ0.  
To access the autoselect codes in-system, the host  
system can issue the autoselect command via the  
command register, as shown in the Command Defini-  
tions table. This method does not require VID. See  
“Command Definitions” for details on using the autose-  
lect mode.  
When using programming equipment, the autoselect  
mode requires VID on address pin A9. Address pins A6,  
A1, and A0 must be as shown in Autoselect Codes  
(High Voltage Method) table. In addition, when verify-  
ing sector protection, the sector address must appear  
10  
Am29F010B  
November 18, 2002