AT45DB642
Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
FLASH MEMORY ARRAY
PAGE (1056 BYTES)
BUFFER 1 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 1 (1056 BYTES)
BUFFER 1
WRITE
SI
MAIN MEMORY
PAGE PROGRAM
THROUGH BUFFER 2
MAIN MEMORY PAGE
PROGRAM THROUGH
BUFFER 1
I/O INTERFACE
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2 (1056 BYTES)
BUFFER 2
WRITE
I/O7 - I/O0
Main Memory Page Program through Buffers
· Completes writing into selected buffer
· Starts self-timed erase/program operation
CS
SI or I/O7 - I/O0
CMD
PA12-5
PA4-0, BFA10-8
BFA7-0
n
n+1
Last Byte
(INPUT)
Buffer Write
· Completes writing into selected buffer
CS
SI or I/O7 - I/O0
CMD
X
X ··· X, BFA10-8
BFA7-0
n
n+1
Last Byte
(INPUT)
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
Starts self-timed erase/program operation
CS
SI or I/O7 - I/O0
CMD
PA12-5
PA4-0, XXX
X ··· X
(INPUT)
Each transition
represents 8 bits
n = 1st byte read
n+1 = 2nd byte read
19
1638F – DFLSH – 09/02
相关PDF资料
AT88CK9000-8TH CRYPTO PROGRAMMER BOARD 8-TSSOP
AT88SC12816C-MJ IC EEPROM 128KBIT 1.5MHZ M2J
AT88SC25616C-MJ IC EEPROM 256BIT 1.5MHZ M2J
AT88SC3216C-MJ IC EEPROM 32KBIT 1.5MHZ M2J
AT88SC6416C-MJ IC EEPROM 64KBIT 1.5MHZ M2J
AT91EB40A KIT EVAL FOR ARM AT91R40008
AT91EB42 KIT EVAL FOR ARM AT91M42800A
AT91EB55 KIT EVAL FOR ARM AT91M55800A
相关代理商/技术参数
AT45DB642-TI 功能描述:闪存 64M 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
AT45DB64D2-CNU 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit Microcontrollers
AT45DCB002 功能描述:存储卡 2M bit RoHS:否 制造商:Olimex Ltd. 产品:SD 存储容量: 连续读取: 连续写入: 有源模式电流: 工作电源电压: 最大工作温度: 尺寸:
AT45DCB002D 功能描述:存储卡 CARD 2M BYTE RoHS:否 制造商:Olimex Ltd. 产品:SD 存储容量: 连续读取: 连续写入: 有源模式电流: 工作电源电压: 最大工作温度: 尺寸:
AT45DCB004 功能描述:DATAFLASH CARD 4MEGABYTE RoHS:否 类别:存储卡,模块 >> 存储器,PC 卡 系列:- 标准包装:30 系列:- 存储容量:8GB 存储器类型:存储卡 - Extreme III SD?
AT45DCB004C 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabyte 2.7-volt DataFlash Card
AT45DCB004C_06 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabyte 2.7-volt DataFlash Card
AT45DCB004D 功能描述:存储卡 CARD 4M BYTE RoHS:否 制造商:Olimex Ltd. 产品:SD 存储容量: 连续读取: 连续写入: 有源模式电流: 工作电源电压: 最大工作温度: 尺寸: