- 您現在的位置：買賣IC網 > PDF目錄366386 > AM28F020A-90JIB (Advanced Micro Devices, Inc.) 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms PDF資料下載
參數資料
| 型號： | AM28F020A-90JIB |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| 中文描述： | 2兆位（256畝× 8位）的CMOS 12.0伏，整體擦除閃存的嵌入式記憶算法 |
| 文件頁數： | 14/35頁 |
| 文件大?。?/td> | 470K |
| 代理商： | AM28F020A-90JIB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
14
Am28F020A
Write Operation Status
Data Polling—DQ7
The device features Data# Polling as a method to indi-
cate to the host system that the Embedded algorithms
are either in progress or completed.
While the Embedded Programming algorithm is in oper-
ation, an attempt to read the device at a valid address
will produce the complement of expected Valid data on
DQ7. Upon completion of the Embedded Program algo-
rithm an attempt to read the device at a valid address will
produce Valid data on DQ7. The Data# Polling feature is
valid after the rising edge of the second WE# pulse of
the two write pulse sequence.
While the Embedded Erase algorithm is in operation,
DQ7 will read “0" until the erase operation is com-
pleted. Upon completion of the erase operation, the
data on DQ7 will read “1.” The Data# Polling feature is
valid after the rising edge of the second WE# pulse of
the two Write pulse sequence.
The Data# Polling feature is only active during Embed-
ded Programming or erase algorithms.
See Figures 3 and 4 for the Data# Polling timing spec-
ifications and diagrams. Data# Polling is the standard
method to check the write operation status, however,
an alternative method is available using Toggle Bit.
START
Fail
No
DQ7 = Data
DQ7 = Data
DQ5 = 1
No
Pass
Yes
No
Yes
Read Byte
(DQ0–DQ7)
Addr = VA
Read Byte
(DQ0–DQ7)
Addr = VA
Yes
VA = Byte address for programming
= XXXXh during chip erase
17502D-8
Note:
DQ7 is rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5 or after DQ5.
Figure 3.
Data
#
Polling Algorithm
相關PDF資料 |
PDF描述 |
|---|---|
| AM28F020A-90PC | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PCB | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PE | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PEB | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PI | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AM28F020A-90LC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| AM28F020A-90PC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PCB | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PE | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-90PEB | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
發(fā)布緊急采購，3分鐘左右您將得到回復。