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參數(shù)資料
| 型號： | AT45D021-RI |
| 廠商： | ATMEL CORP |
| 元件分類： | DRAM |
| 英文描述： | 2-Megabit 5-volt Only Serial DataFlash |
| 中文描述： | 2M X 1 FLASH 5V PROM, PDSO28 |
| 封裝： | 0.330 INCH, PLASTIC, SOIC-28 |
| 文件頁數(shù)： | 10/18頁 |
| 文件大?。?/td> | 200K |
| 代理商： | AT45D021-RI |
AT45D021
10
Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
Main Memory Page Read
Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
Buffer Read
FLASH MEMORY ARRAY
PAGE (264 BYTES)
BUFFER 2 (264 BYTES)
BUFFER 1 (264 BYTES)
I/O INTERFACE
MAIN MEMORY
PAGE TO
BUFFER 1
MAIN MEMORY
PAGE TO
BUFFER 2
MAIN MEMORY
PAGE READ
BUFFER 1
READ
BUFFER 2
READ
SO
SI
CMD
r r r r r, PA9-7
PA6-0, BA8
BA7-0
X
X
X
X
CS
n
n+1
SO
SI
CMD
r r r r r, PA9-7
PA6-0, X
X
Starts reading page data into buffer
CS
SO
SI
CMD
X
X···X, BFA8
BFA7-0
CS
n
n+1
SO
X
Each transition represents
8 bits and 8 clock cycles
n = 1st byte written
n+1 = 2nd byte written
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT45D021-TC | 2-Megabit 5-volt Only Serial DataFlash |
| AT45D021-TI | 2-Megabit 5-volt Only Serial DataFlash |
| AT45D041 | 4-Megabit 5-volt Only Serial DataFlash |
| AT45D041-JC | 4-Megabit 5-volt Only Serial DataFlash |
| AT45D041-JI | 4-Megabit 5-volt Only Serial DataFlash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT45D021-TC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:2-Megabit 5-volt Only Serial DataFlash |
| AT45D021-TI | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:2-Megabit 5-volt Only Serial DataFlash |
| AT45D02-RC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:(183.07 k) |
| AT45D041 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:4-Megabit 5-volt Only Serial DataFlash |
| AT45D041A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:4-megabit 5-volt Only Serial DataFlash |
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