- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69039 > MSM65P522-XXXJS (OKI ELECTRIC INDUSTRY CO LTD) 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQCC44 PDF資料下載
參數(shù)資料
| 型號(hào)： | MSM65P522-XXXJS |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | 0.650 INCH, 1.27 MM PITCH, PLASTIC, QFJ-44 |
| 文件頁(yè)數(shù)： | 8/20頁(yè) |
| 文件大小： | 178K |
| 代理商： | MSM65P522-XXXJS |
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)
18
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
6.1.4
ADC Clock – clk
ADC
The ADC is provided with a dedicated clock domain. This allows halting the CPU and I/O clocks in order to reduce
noise generated by digital circuitry. This gives more accurate ADC conversion results.
The ADC is available in ATtiny5/10, only.
6.2
Clock Sources
All synchronous clock signals are derived from the main clock. The device has three alternative sources for the
main clock, as follows:
External Clock (see page 18)
See Table 6-3 on page 21 on how to select and change the active clock source.
6.2.1
Calibrated Internal 8 MHz Oscillator
The calibrated internal oscillator provides an approximately 8 MHz clock signal. Though voltage and temperature
dependent, this clock can be very accurately calibrated by the user. See Table 16-2 on page 117, Figure 17-39 on
page 141 and Figure 17-40 on page 141 for more details.
This clock may be selected as the main clock by setting the Clock Main Select bits CLKMS[1:0] in CLKMSR to
0b00. Once enabled, the oscillator will operate with no external components. During reset, hardware loads the cal-
ibration byte into the OSCCAL register and thereby automatically calibrates the oscillator. The accuracy of this
calibration is shown as Factory calibration in Table 16-2 on page 117.
When this oscillator is used as the main clock, the watchdog oscillator will still be used for the watchdog timer and
reset time-out. For more information on the pre-programmed calibration value, see section “Calibration Section” on
6.2.2
External Clock
To use the device with an external clock source, CLKI should be driven as shown in Figure 6-2. The external clock
is selected as the main clock by setting CLKMS[1:0] bits in CLKMSR to 0b10.
Figure 6-2.
External Clock Drive Configuration
When applying an external clock, it is required to avoid sudden changes in the applied clock frequency to ensure
stable operation of the MCU. A variation in frequency of more than 2% from one clock cycle to the next can lead to
unpredictable behavior. It is required to ensure that the MCU is kept in reset during such changes in the clock
frequency.
EXTERNAL
CLOCK
SIGNAL
CLKI
GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM65522-XXXJS | 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQCC44 |
| MSM65522-XXXGS-2K | 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP44 |
| MSM65P522-XXXRS | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PDIP42 |
| MSM65P522-XXXGS-2K | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44 |
| MSM65P524A-XXXSS | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PDIP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM65P522-XXXRS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:8-Bit Microcontroller with A/D Converter |
| MSM65P522-XXXSS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:8-Bit Microcontroller with A/D Converter |
| MSM65P524 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Oki Original High Performance CMOS 8 Bit 1 Chip Microcontroller |
| MSM65X227 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:8-Bit Microcontroller (with 4K-Byte EEPROM) |
| MS-M660 | 制造商:Stellar Labs Power 功能描述:BENQ JoyBook Replacement Laptop Battery |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。