- 您現在的位置：買賣IC網 > PDF目錄45276 > MQ80C52TXXX-20:D (ATMEL CORP) 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44 PDF資料下載
參數資料
| 型號： | MQ80C52TXXX-20:D |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44 |
| 封裝： | CERAMIC, QFP-44 |
| 文件頁數： | 44/81頁 |
| 文件大小： | 663K |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁當前第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁
49
ATtiny28L/V
1062F–AVR–07/06
Chip Erase
The Chip Erase command will erase the Flash memory and the Lock bits. The Lock bits
are not reset until the Flash has been completely erased. The Fuse bits are not
changed. Chip Erase must be performed before the Flash is reprogrammed.
Load Command “Chip Erase”
1.
Set XA1, XA0 to “10”. This enables command loading.
2.
Set BS to “0”.
3.
Set DATA to “1000 0000”. This is the command for Chip Erase.
4.
Give XTAL1 a positive pulse. This loads the command.
5.
Give WR a negative pulse. This starts the Chip Erase. RDY/BSY goes low.
6.
Wait until RDY/BSY goes high before loading a new command.
Programming the Flash
A: Load Command “Write Flash”
1.
Set XA1, XA0 to “10”. This enables command loading.
2.
Set BS to “0”.
3.
Set DATA to “0001 0000”. This is the command for Write Flash.
4.
Give XTAL1 a positive pulse. This loads the command.
B: Load Address High Byte
1.
Set XA1, XA0 to “00”. This enables address loading.
2.
Set BS to “1”. This selects high byte.
3.
Set DATA = Address high byte ($00 - $03).
4.
Give XTAL1 a positive pulse. This loads the address high byte.
C: Load Address Low Byte
1.
Set XA1, XA0 to “00”. This enables address loading.
2.
Set BS to “0”. This selects low byte.
3.
Set DATA = Address low byte ($00 - $FF).
4.
Give XTAL1 a positive pulse. This loads the address low byte.
D: Load Data Low Byte
1.
Set XA1, XA0 to “01”. This enables data loading.
2.
Set DATA = Data low byte ($00 - $FF).
3.
Give XTAL1 a positive pulse. This loads the data low byte.
E: Write Data Low Byte
1.
Set BS to “0”. This selects low data.
2.
Give WR a negative pulse. This starts programming of the data byte. RDY/BSY
goes low.
3.
Wait until RDY/BSY goes high to program the next byte.
(See Figure 38 for signal waveforms.)
F: Load Data High Byte
1.
Set XA1, XA0 to “01”. This enables data loading.
2.
Set DATA = Data high byte ($00 - $FF).
3.
Give XTAL1 a positive pulse. This loads the data high byte.
G: Write Data High Byte
相關PDF資料 |
PDF描述 |
|---|---|
| MR80C32-20/883:RD | 8-BIT, 20 MHz, MICROCONTROLLER, CQCC44 |
| MR80C32-16/883R | 8-BIT, 16 MHz, MICROCONTROLLER, CQCC44 |
| MC80C52CXXX-30P883 | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40 |
| MR80C32-20/883:RD | 8-BIT, 20 MHz, MICROCONTROLLER, CQCC44 |
| MC80C52XXX-16SBD | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MQ82370-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ8238020 | 制造商:Intel 功能描述:CONTROLLER: OTHER |
| MQ82380-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ82380-20/R | 制造商:Rochester Electronics LLC 功能描述: |
| MQ82592 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復。