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参数资料
| 型号： | AT25F2048N-10SU-2.7 |
| 厂商： | Atmel |
| 文件页数： | 10/19页 |
| 文件大小： | 0K |
| 描述： | IC FLASH 2MBIT 33MHZ 8SOIC |
| 标准包装： | 100 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 2M (256K x 8) |
| 速度： | 33MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 其它名称： | AT25F2048N10SU2.7 |
A single Program instruction programs 1 to 256 consecutive bytes within a page if it is
not write protected. The starting byte could be anywhere within the page. When the end
of the page is reached, the address will wrap around to the beginning of the same page.
If the data to be programmed are less than a full page, the data of all other bytes on the
same page will remain unchanged. If more than 256 bytes of data are provided, the
address counter will roll over on the same page and the previous data provided will be
replaced. The same byte cannot be reprogrammed without erasing the whole sector
first. The AT25F2048 will automatically return to the write disable state at the completion
of the Program cycle.
Note:
If the device is not write enabled (WREN), the device will ignore the Write instruction and
will return to the standby state, when CS is brought high. A new CS falling edge is
required to re-initiate the serial communication.
Table 9. Address Key
Address
A N
Don’t Care Bits
AT25F2048
A 17 - A 0
A 23 - A 18
SECTOR ERASE (SECTOR ERASE): Before a byte can be reprogrammed, the sector
which contains the byte must be erased. In order to erase the AT25F2048, two separate
instructions must be executed. First, the device must be write enabled via the WREN
instruction. Then the Sector Erase instruction can be executed.
Table 10. Sector Addresses
Sector Address
000000 to 00FFFF
010000 to 01FFFF
020000 to 02FFFF
030000 to 03FFFF
AT25F2048 Sector
Sector 1
Sector 2
Sector 3
Sector 4
The Sector Erase instruction erases every byte in the selected sector if the sector is not
locked out. Sector address is automatically determined if any address within the sector
is selected. The Sector Erase instruction is internally controlled; it will automatically be
timed to completion. During this time, all commands will be ignored, except RDSR
instruction. The AT25F2048 will automatically return to the write disable state at the
completion of the Sector Erase cycle.
CHIP ERASE (CHIP ERASE): As an alternative to the Sector Erase, the Chip Erase
instruction will erase every byte in all sectors that are not locked out. First, the device
must be write enabled via the WREN instruction. Then the Chip Erase instruction can be
executed. The Chip Erase instruction is internally controlled; it will automatically be
timed to completion. The Chip Erase cycle time typically is 4 seconds. During the inter-
nal erase cycle, all instructions will be ignored except RDSR. The AT25F2048 will
automatically return to the write disable state at the completion of the Chip Erase cycle.
10
AT25F2048
2455I–SFLSH–5/07
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相关代理商/技术参数 |
参数描述 |
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| AT25F2048-W27-11 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:2Mbit High Speed SPI Serial Flash Memory 2M (262,144 x 8) |
| AT25F2048Y7-YH27-T | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:2Mbit High Speed SPI Serial Flash Memory 2M (262,144 x 8) |
| AT25F4096 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4Mbit High Speed SPI Serial Flash Memory |
| AT25F4096_06 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4Mbit High Speed SPI Serial Flash Memory |
| AT25F4096W-10SU-2.7 | 功能描述:IC FLASH 4MBIT 33MHZ 8SOIC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:16M（2M x 8，1M x 16） 速度:70ns 接口:并联 电源电压:2.65 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
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