参数资料
| 型号： | AT45DB321B-TC |
| 厂商： | Atmel |
| 文件页数： | 9/32页 |
| 文件大小： | 0K |
| 描述： | IC FLASH 32MBIT 20MHZ 32TSOP |
| 标准包装： | 156 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | DataFLASH |
| 存储容量： | 32M（8192 页 x 528 字节） |
| 速度： | 20MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 32-TFSOP（0.724"，18.40mm 宽） |
| 供应商设备封装： | 32-TSOP |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
AT45DB321B
WRITE PROTECT: If the WP pin is held low, the first 256 pages of the main memory
cannot be reprogrammed. The only way to reprogram the first 256 pages is to first drive
the protect pin high and then use the program commands previously mentioned. The
WP pin is internally pulled high; therefore, connection of the WP pin is not necessary if
this pin and feature will not be utilized. However, it is recommended that the WP pin be
driven high externally whenever possible.
RESET: A low state on the reset pin (RESET) will terminate the operation in progress
and reset the internal state machine to an idle state. The device will remain in the reset
condition as long as a low level is present on the RESET pin. Normal operation can
resume once the RESET pin is brought back to a high level.
The device incorporates an internal power-on reset circuit, so there are no restrictions
on the RESET pin during power-on sequences. The RESET pin is also internally pulled
high; therefore, connection of the RESET pin is not necessary if this pin and feature will
not be utilized. However, it is recommended that the RESET pin be driven high exter-
nally whenever possible.
READY/BUSY: This open drain output pin will be driven low when the device is busy in
an internally self-timed operation. This pin, which is normally in a high state (through
a 1 k ? external pull-up resistor), will be pulled low during programming operations, com-
pare operations, and during page-to-buffer transfers.
The busy status indicates that the Flash memory array and one of the buffers cannot be
accessed; read and write operations to the other buffer can still be performed.
Power-on/Reset State
When power is first applied to the device, or when recovering from a reset condition, the
device will default to SPI Mode 3. In addition, the SO pin will be in a high-impedance
state, and a high-to-low transition on the CS pin will be required to start a valid instruc-
tion. The SPI mode will be automatically selected on every falling edge of CS by
sampling the inactive clock state.
9
2223E–DFLASH–11//03
相关PDF资料 |
PDF描述 |
|---|---|
| AT45DB011B-SC | IC FLASH 1MBIT 20MHZ 8SOIC |
| SOMOMAP3530-11-1670EFCR | SYSTEM ON MODULE LV OMAP3530 |
| 395-030-523-202 | CARD EDGE 30POS DL .100X.200 BLK |
| 395-030-523-201 | CARD EDGE 30POS DL .100X.200 BLK |
| 395-030-521-804 | CARD EDGE 30POS DL .100X.200 BLK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45DB321B-TI | 功能描述:IC FLASH 32MBIT 20MHZ 32TSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC（J 形引线） 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC |
| AT45DB321C | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32 MEGABIT 2.7 VOLT DATAFLASH |
| AT45DB321C_06 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-megabit 2.7 volt DataFlash |
| AT45DB321-CC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB321C-CC | 功能描述:IC FLASH 32MBIT 40MHZ 24CBGA RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869 |
发布紧急采购，3分钟左右您将得到回复。