- 您现在的位置：买卖IC网 > PDF目录381452 > AT45D021-RI (ATMEL CORP) 2-Megabit 5-volt Only Serial DataFlash PDF资料下载
参数资料
| 型号： | AT45D021-RI |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 2-Megabit 5-volt Only Serial DataFlash |
| 中文描述： | 2M X 1 FLASH 5V PROM, PDSO28 |
| 封装： | 0.330 INCH, PLASTIC, SOIC-28 |
| 文件页数： | 10/18页 |
| 文件大小： | 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
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45D021-TC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:2-Megabit 5-volt Only Serial DataFlash |
| AT45D021-TI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:2-Megabit 5-volt Only Serial DataFlash |
| AT45D02-RC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:(183.07 k) |
| AT45D041 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-Megabit 5-volt Only Serial DataFlash |
| AT45D041A | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabit 5-volt Only Serial DataFlash |
发布紧急采购，3分钟左右您将得到回复。