- 您现在的位置：买卖IC网 > Sheet目录313 > AT45DB642-TC (Atmel)IC FLASH 64MBIT 20MHZ 40TSOP
Block Erase Addressing
PA12
0
0
0
0
?
?
?
1
1
1
1
PA11
0
0
0
0
?
?
?
1
1
1
1
PA10
0
0
0
0
?
?
?
1
1
1
1
PA9
0
0
0
0
?
?
?
1
1
1
1
PA8
0
0
0
0
?
?
?
1
1
1
1
PA7
0
0
0
0
?
?
?
1
1
1
1
PA6
0
0
0
0
?
?
?
1
1
1
1
PA5
0
0
0
0
?
?
?
1
1
1
1
PA4
0
0
1
1
?
?
?
0
0
1
1
PA3
0
1
0
1
?
?
?
0
1
0
1
PA2
X
X
X
X
?
?
?
X
X
X
X
PA1
X
X
X
X
?
?
?
X
X
X
X
PA0
X
X
X
X
?
?
?
X
X
X
X
Block
0
1
2
3
?
?
?
1020
1021
1022
1023
MAIN MEMORY PAGE PROGRAM THROUGH BUFFER: This operation is a combination of
the Buffer Write and Buffer to Main Memory Page Program with Built-in Erase operations.
Data is first clocked into buffer 1 or buffer 2 from the input pins (SI or I/O7 - I/O0) and then pro-
grammed into a specified page in the main memory. A 1-byte opcode, 82H for buffer 1 or 85H
for buffer 2, must first be clocked into the device, followed by three address bytes. The
address bytes are comprised of 13 page address bits (PA12 - PA0) that select the page in the
main memory where data is to be written, and 11 buffer address bits (BFA10 - BFA0) that
select the first byte in the buffer to be written. After all address bytes are clocked in, the part
will take data from the input pins and store it in the specified data buffer. If the end of the buffer
is reached, the device will wrap around back to the beginning of the buffer. When there is a
low-to-high transition on the CS pin, the part will first erase the selected page in main memory
to all 1s and then program the data stored in the buffer into that memory page. Both the erase
and the programming of the page are internally self-timed and should take place in a maxi-
mum time of t EP . During this time, the status register and the RDY/BUSY pin will indicate that
the part is busy.
Additional
Commands
MAIN MEMORY PAGE TO BUFFER TRANSFER: A page of data can be transferred from the
main memory to either buffer 1 or buffer 2. To start the operation, a 1-byte opcode, 53H for
buffer 1 and 55H for buffer 2, must be clocked into the device, followed by three address bytes
comprised of 13 page address bits (PA12 - PA0), which specify the page in main memory that
is to be transferred, and 11 don ’ t care bits. The CS pin must be low while toggling the
SCK/CLK pin to load the opcode and the address bytes from the input pins (SI or I/O7 - I/O0).
The transfer of the page of data from the main memory to the buffer will begin when the CS pin
transitions from a low to a high state. During the transfer of a page of data (t XFR ), the status
register can be read or the RDY/BUSY can be monitored to determine whether the transfer
has been completed.
8
AT45DB642
1638F – DFLSH – 09/02
发布紧急采购，3分钟左右您将得到回复。
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: