- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45378 > MD80C52EXXX-20SHXXX (ATMEL CORP) 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40 PDF資料下載
參數(shù)資料
| 型號(hào)： | MD80C52EXXX-20SHXXX |
| 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, CDIP40 |
| 封裝： | CERAMIC, DIP-40 |
| 文件頁(yè)數(shù)： | 182/182頁(yè) |
| 文件大?。?/td> | 2994K |
| 代理商： | MD80C52EXXX-20SHXXX |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)第181頁(yè)當(dāng)前第182頁(yè)
99
1477K–AVR–08/10
ATtiny26(L)
Special care should be taken when changing differential channels. Once a differential channel
has been selected, the gain stage may take as much as 125 s to stabilize to the new value.
Thus conversions should not be started within the first 125 s after selecting a new differential
channel. Alternatively, conversion results obtained within this period should be discarded.
The same settling time should be observed for the first differential conversion after changing
ADC reference (by changing the REFS1:0 bits in ADMUX).
ADC Noise
Canceler Function
The ADC features a noise canceler that enables conversion during ADC Noise Reduction mode
(see “Power Management and Sleep Modes” on page 37) to reduce noise induced from the
CPU core and other I/O peripherals. If other I/O peripherals must be active during conversion,
this mode works equivalently for Idle mode. To make use of this feature, the following procedure
should be used:
1. Make sure that the ADC is enabled and is not busy converting. Single Conversion mode
must be selected and the ADC conversion complete interrupt must be enabled.
ADEN = 1
ADSC = 0
ADFR = 0
ADIE = 1
2. Enter ADC Noise Reduction mode (or Idle mode). The ADC will start a conversion once
the CPU has been halted.
3. If no other interrupts occur before the ADC conversion completes, the ADC interrupt will
wake up the CPU and execute the ADC Conversion Complete interrupt routine.
ADC Conversion
Result
After the conversion is complete (ADIF is high), the conversion result can be found in the ADC
Result Registers (ADCL, ADCH).
For single ended conversion, the result is
where VIN is the voltage on the selected input pin and VREF the selected voltage reference (see
Table 45 on page 101 and Table 46 on page 102). 0x000 represents analog ground, and 0x3FF
represents the selected reference voltage minus one LSB.
If differential channels are used, the result is
where VPOS is the voltage on the positive input pin, VNEG the voltage on the negative input pin,
GAIN the selected gain factor, and VREF the selected voltage reference. Keep in mind that VPOS
decoding of the differential input range.
Table 44 shows the resulting output codes if the differential input channel pair (ADCn - ADCm) is
selected with a gain of GAIN and a reference voltage of VREF.
ADC
VIN 1024
VREF
--------------------------
=
ADC
VPOS VNEG
–
() GAIN 1024
VREF
---------------------------------------------------------------------------
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MR80C32E-16/883:R | 8-BIT, 16 MHz, MICROCONTROLLER, CQCC44 |
| MQ80C32E-25:RD | 8-BIT, 25 MHz, MICROCONTROLLER, CQFP44 |
| MQ80C52EXXX-36SCR | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQFP44 |
| IF283C154XXX-30R | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQFP44 |
| IR83C154CXXX-30D | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MD80C86 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor |
| MD80C862 | 制造商:Intel 功能描述:PROCESSOR:MICRO-PROCESSOR |
| MD80C86-2 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor |
| MD80C86-2/883 | 制造商:Intersil Corporation 功能描述:MPU 16BIT CMOS 8MHZ 40CDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:CPU 16BILT 5V CMOS 8MHZ 40CDIP - Bulk |
| MD80C86-2/B | 制造商:Intersil Corporation 功能描述:MPU 16BIT CMOS 8MHZ 40CDIP - Rail/Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。