參數(shù)資料
型號(hào): ATTINY43U-SUR
廠商: Atmel
文件頁數(shù): 76/158頁
文件大?。?/td> 0K
描述: MCU AVR 4KB FLASH 8MHZ 20SOIC
產(chǎn)品培訓(xùn)模塊: tinyAVR Introduction
標(biāo)準(zhǔn)包裝: 1,000
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: USI
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 16
程序存儲(chǔ)器容量: 4KB(2K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 64 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
其它名稱: ATTINY43U-SUR-ND
24
8048C–AVR–02/12
ATtiny43U
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.
6.2
Clock Sources
The device has the following clock source options, selectable by Flash Fuse bits as shown
below. The clock from the selected source is input to the AVR clock generator, and routed to the
appropriate modules.
Note:
1. For all fuses “1” means unprogrammed while “0” means programmed.
6.2.1
External Clock
To drive the device from an external clock source, CLKI should be driven as shown in Figure 6-2
on page 24. To run the device on an external clock, the CKSEL Fuses must be programmed to
“0000” (see Table 6-2).
Figure 6-2.
External Clock Drive Configuration
Table 6-1.
Device Clocking Options Select(1)
Device Clocking Option
CKSEL[3:0]
0000
0010
0011
Reserved
0001, 0100-1111
Table 6-2.
Crystal Oscillator Clock Frequency
CKSEL[3:0}
Frequency
0000
0 - 8 MHz
EXTERNAL
CLOCK
SIGNAL
CLKI
GND
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