- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25633 > MR80C52EXXX-25/883 (ATMEL CORP) 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44 PDF資料下載
參數(shù)資料
| 型號： | MR80C52EXXX-25/883 |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44 |
| 封裝： | LCC-44 |
| 文件頁數(shù)： | 16/46頁 |
| 文件大小： | 4720K |
| 代理商： | MR80C52EXXX-25/883 |
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頁當(dāng)前第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頁第44頁第45頁第46頁
22
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
To avoid unintentional changes of clock frequency, a protected change sequence must be followed to change the
CLKPS bits:
1.
Write the signature for change enable of protected I/O register to register CCP
2.
Within four instruction cycles, write the desired value to CLKPS bits
At start-up, the CLKPS bits will be reset to 0b0011 to select the clock division factor of 8. The application software must
ensure that a sufficient division factor is chosen if the selected clock source has a higher frequency than the maximum
frequency of the device at the present operating conditions.
6.5.3
OSCCAL – Oscillator Calibration Register
.
Bits 7:0
– CAL[7:0]: Oscillator Calibration Value
The oscillator calibration register is used to trim the calibrated internal oscillator and remove process variations from the
oscillator frequency. A pre-programmed calibration value is automatically written to this register during chip reset, giving
the factory calibrated frequency as specified in Table 20-2, “Calibration Accuracy of Internal RC Oscillator,” on page 169.
The application software can write this register to change the oscillator frequency. The oscillator can be calibrated to
frequencies as specified in Table 20-2, “Calibration Accuracy of Internal RC Oscillator,” on page 169. Calibration outside
the range given is not guaranteed.
The CAL[7:0] bits are used to tune the frequency of the oscillator. A setting of 0x00 gives the lowest frequency, and a
setting of 0xFF gives the highest frequency.
1
0
1
0
Reserved
1
0
1
Reserved
1
0
Reserved
1
0
1
Reserved
1
0
Reserved
1
Reserved
CLKPS3
CLKPS2
CLKPS1
CLKPS0
Clock Division Factor
Bit
765432
1
0
CAL7
CAL6
CAL5
CAL4
CAL3
CAL2
CAL1
CAL0
OSCCAL
Read/Write
R/W
Initial Value
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MQ83C154XXX-12/883R | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44 |
| MC80C52CXXX-16P883 | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| MC80C32-12SBD | 8-BIT, 12 MHz, MICROCONTROLLER, CDIP40 |
| MR83C154DCXXX-25P883 | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44 |
| MC80C52EXXX-30SHXXX:D | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MR80C86 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor |
| MR80C86/B | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述:Microprocessor, 16 Bit, 44 Pin, Ceramic, LCC |
| MR80C86-2 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor |
| MR80C86-2/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MR80C86-2/B | 制造商:Intersil Corporation 功能描述:MPU 80C86 16BIT CMOS 8MHZ 44PLCC - Rail/Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。