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参数资料
| 型号： | AT45DB041B-TU |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| 中文描述： | 4M X 1 FLASH 2.7V PROM, PDSO28 |
| 封装： | 8 X 13.40 MM, GREEN, PLASTIC, MO-183, TSOP1-28 |
| 文件页数： | 17/35页 |
| 文件大小： | 321K |
| 代理商： | AT45DB041B-TU |
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17
3443C–DFLSH–5/05
AT45DB041B
12. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
12.1
Main Memory Page Program through Buffers
12.2
Buffer Write
12.3
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
FLASH MEMORY ARRAY
PAGE (256 BYTES)
BUFFER 2 (256 BYTES)
BUFFER 1 (256 BYTES)
I/O INTERFACE
SI
BUFFER 1 TO
PAGE PROGRAM
PAGE PROGRAM
THROUGH BUFFER 2
BUFFER 2 TO
PAGE PROGRAM
PAGE PROGRAM
THROUGH BUFFER 1
BUFFER 1
WRITE
BUFFER 2
WRITE
SI
CMD
n
n+1
Last Byte
· Completes writing into selected buffer
· Starts self-timed erase/program operation
CS
r r r r, PA10-7
PA6-0, BFA8
BFA7-0
SI
CMD
X
X···X, BFA8
BFA7-0
n
n+1
Last Byte
· Completes writing into selected buffer
CS
SI
CMD
r r r r, PA10-7
PA6-0, X
CS
Starts self-timed erase/program operation
X
Each transition represents
8 bits and 8 clock cycles
n = 1st byte read
n+1 = 2nd byte read
相关PDF资料 |
PDF描述 |
|---|---|
| AT45DB041B-SC | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
| AT45DB041B-SC-2.5 | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
| AT45DB041B-SI | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
| AT45DB041B-TC | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
| AT45DB041B-TC-2.5 | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45DB041-CC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB041-CI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB041D | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041D_07 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041D_08 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabit 2.5-volt or 2.7-volt DataFlash |
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