- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45387 > MR83C154XXX-30/883 (ATMEL CORP) 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 PDF資料下載
參數(shù)資料
| 型號(hào)： | MR83C154XXX-30/883 |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 |
| 封裝： | LCC-44 |
| 文件頁(yè)數(shù)： | 8/204頁(yè) |
| 文件大?。?/td> | 5687K |
| 代理商： | MR83C154XXX-30/883 |
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)當(dāng)前第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)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)第197頁(yè)第198頁(yè)第199頁(yè)第200頁(yè)第201頁(yè)第202頁(yè)第203頁(yè)第204頁(yè)
105
ATtiny40 [DATASHEET]
8263B–AVR–01/2013
15.6.2
ADC Voltage Reference
The ADC reference voltage (V
REF) indicates the conversion range for the ADC. Single ended channels that exceed
V
REF will result in codes close to 0x3FF. VREF can be selected as either VCC, or internal 1.1V reference. The internal
1.1V reference is generated from the internal bandgap reference (V
BG) through an internal amplifier.
The first ADC conversion result after switching reference voltage source may be inaccurate, and the user is
advised to discard this result.
15.7
ADC Noise Canceler
The ADC features a noise canceler that enables conversion during sleep mode. This reduces noise induced from
the CPU core and other I/O peripherals. The noise canceler can be used with ADC Noise Reduction and Idle
mode. To make use of this feature, the following procedure should be used:
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.
Enter ADC Noise Reduction mode (or Idle mode). The ADC will start a conversion once the CPU has been
halted.
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. If another interrupt wakes up the CPU before the ADC
conversion is complete, that interrupt will be executed, and an ADC Conversion Complete interrupt request will
be generated when the ADC conversion completes. The CPU will remain in active mode until a new sleep
command is executed.
Note that the ADC will not automatically be turned off when entering other sleep modes than Idle mode and ADC
Noise Reduction mode. The user is advised to write zero to ADEN before entering such sleep modes to avoid
excessive power consumption.
15.8
Analog Input Circuitry
The analog input circuitry for single ended channels is illustrated in Figure 15-8. An analog source applied to ADCn
is subjected to the pin capacitance and input leakage of that pin, regardless of whether that channel is selected as
input for the ADC. When the channel is selected, the source must drive the S/H capacitor through the series resis-
tance (combined resistance in the input path).
The ADC is optimized for analog signals with an output impedance of approximately 10 k
or less. If such a source
is used, the sampling time will be negligible. If a source with higher impedance is used, the sampling time will
depend on how long time the source needs to charge the S/H capacitor, which can vary widely. The user is recom-
mended to only use low impedance sources with slowly varying signals, since this minimizes the required charge
transfer to the S/H capacitor.
In order to avoid distortion from unpredictable signal convolution, signal components higher than the Nyquist fre-
quency (f
ADC/2) should not be present. The user is advised to remove high frequency components with a low-pass
filter before applying the signals as inputs to the ADC.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IQ80C52TXXX-L16SHXXX | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MC80C52XXX-16/883 | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| MQ83C154XXX-16/883D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MR87C251SB16 | 8-BIT, UVPROM, 16 MHz, MICROCONTROLLER, CQCC44 |
| MC87C251SB16 | 8-BIT, UVPROM, 16 MHz, MICROCONTROLLER, CDIP40 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MR850 | 功能描述:整流器 3.0 Amp 50 Volt 150ns RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時(shí)間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel |
| MR850 _AY _10001 | 制造商:PanJit Touch Screens 功能描述: |
| MR850 R0 | 制造商:SKMI/Taiwan 功能描述:Diode Switching 50V 3A 2-Pin DO-201AD T/R |
| MR850_ R2 _10001 | 制造商:PanJit Touch Screens 功能描述: |
| MR850_09 | 制造商:PANJIT 制造商全稱:Pan Jit International Inc. 功能描述:SOFT RECOVERY, FAST SWITCHING PLASTIC RECTIFIER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。