AT45DB321
Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
FLASH MEMORY ARRAY
PAGE (528 BYTES)
BUFFER 1 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 1 (528 BYTES)
BUFFER 1
WRITE
MAIN MEMORY
PAGE PROGRAM
THROUGH BUFFER 2
MAIN MEMORY PAGE
PROGRAM THROUGH
BUFFER 1
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2 (528 BYTES)
BUFFER 2
WRITE
I/O INTERFACE
SI
Main Memory Page Program through Buffers
· Completes writing into selected buffer
· Starts self-timed erase/program operation
CS
SI
CMD
r , PA12-6
PA5-0, BFA9-8
BFA7-0
n
n+1
Last Byte
Buffer Write
· Completes writing into selected buffer
CS
SI
CMD
X
X ··· X, BFA9-8
BFA7-0
n
n+1
Last Byte
Buffer to Main Memory Page Program
(Data from Buffer Programmed into Flash Page)
Starts self-timed erase/program operation
CS
SI
CMD
r , PA12-6
PA5-0, XX
X
Each transition represents
8 bits and 8 clock cycles
n = 1st byte written
n+1 = 2nd byte written
11
相关PDF资料
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相关代理商/技术参数
AT45DB321-TI 功能描述:闪存 32M bit RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
AT45DB641E-CCUN2B-T 功能描述:DATAFLASH 64MBIT BINARY 9UBGA 制造商:adesto technologies 系列:- 包装:带卷(TR) 零件状态:有效 格式 - 存储器:闪存 存储器类型:DataFLASH 存储容量:64M(32K 页 x 256 字节) 速度:85MHz 接口:SPI,RapidS 电压 - 电源:1.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C(TC) 封装/外壳:9-UBGA 供应商器件封装:9-UBGA(6x6) 标准包装:4,000
AT45DB641E-CCUN-T 制造商:Adesto Technologies Corporation 功能描述:9 BALL UBGA 3X3 1.0 MM PITCH, IND TEMP, 1.7V, T&R - Tape and Reel
AT45DB641E-DWF 制造商:Adesto Technologies Corporation 功能描述:DIE IN WAFER FORM - Gel-pak, waffle pack, wafer, diced wafer on film
AT45DB641E-MHN2B-T 功能描述:DATAFLASH 64MBIT 8UDFN 制造商:adesto technologies 系列:- 包装:剪切带(CT) 零件状态:有效 格式 - 存储器:闪存 存储器类型:DataFLASH 存储容量:64M(32K 页 x 256 字节) 速度:85MHz 接口:SPI,RapidS 电压 - 电源:1.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C(TC) 封装/外壳:8-UDFN 裸露焊盘 供应商器件封装:8-UDFN(5x6) 标准包装:1
AT45DB641E-MHN-T 制造商:Adesto Technologies Corporation 功能描述:8-UDFN (5X6X0.6), IND TEMP, 1.7V, T&R - Tape and Reel 制造商:Adesto Technologies Corporation 功能描述:DATAFLASH 64MBIT 8UDFN 5X6
AT45DB641E-MHN-Y 制造商:Adesto Technologies Corporation 功能描述:8-UDFN (5X6X0.6), IND TEMP, 1.7V, TRAY - Trays
AT45DB641E-MWHN2B-T 功能描述:DATAFLASH 64MBIT 8VDFN 制造商:adesto technologies 系列:- 包装:剪切带(CT) 零件状态:有效 格式 - 存储器:闪存 存储器类型:DataFLASH 存储容量:64M(32K 页 x 256 字节) 速度:85MHz 接口:SPI,RapidS 电压 - 电源:1.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C(TC) 封装/外壳:8-VDFN 裸露焊盘 供应商器件封装:8-VDFN(6x8) 标准包装:1