參數(shù)資料
型號(hào)： ATTINY84A-CCU
廠商： Atmel
文件頁數(shù)： 132/135頁
文件大?。?/td> 0K
描述： IC MCU 8BIT 8K FLASH 15UFBGA
標(biāo)準(zhǔn)包裝： 490
系列： AVR® ATtiny
核心處理器： AVR
芯體尺寸： 8-位
速度： 20MHz
連通性： USI
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，PWM，溫度傳感器，WDT
輸入/輸出數(shù)： 12
程序存儲(chǔ)器容量： 8KB（4K x 16）
程序存儲(chǔ)器類型： 閃存
EEPROM 大小： 512 x 8
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 15-UFBGA
包裝： 托盤
96
32015G–AVR32–09/09
AT32AP7001
11.5.3.2
Lock suppression
When using high division or multiplication factors, there is a possibility that the PLL can give
false lock indications while sweeping to the correct frequency. To prevent false lock indications
from setting the LOCKn flag, the lock indication can be suppressed for a number of slow clock
cycles indicated in the PLLn:COUNT field. Typical start-up times can be found using the Atmel
filter caluclator (see below).
11.5.3.3
Operating range selection
To use PLLn, a passive RC filter should be connected to the LFTn pin, as shown in Figure 11-2.
Filter values depend on the PLL reference and output frequency range. Atmel provides a tool
named “Atmel PLL LFT Filter Calculator AT91”. The PLL for AT32AP7001 can be selected in
this tool by selecting “AT91RM9200 (58A07F)” and leave “Icp = ‘1’” (default).
11.5.4
Synchronous clocks
Oscillator 0 (default) or PLL0 provides the source for the main clocks, which is the common root
for the synchronous clocks for the CPU, and HSB, PBA, and PBB modules. The main clock is
divided by an 8-bit prescaler, and each of these four synchronous clocks can run from any tap-
ping of this prescaler, or the undivided main clock, as long as f
CPU
f
HSB
f
PBx and fPBB=fHSB.
The synchronous clock source can be changed on-the fly, responding to varying load in the
application. The clock domains can be shut down in sleep mode, as described in ”Sleep modes”
on page 99. Additionally, the clocks for each module in the four domains can be individually
masked, to avoid power consumption in inactive modules.
Figure 11-3. Synchronous clock generation
Mask
Prescaler
0
1
Osc0 clock
PLL0 clock
PLLSEL
0
1
CPUSEL
CPUDIV
Main clock
Sleep
Controller
CPUMASK
CPU clocks
HSB clocks
PBAclocks
PBB clocks
Sleep
instruction
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATTINY84A-CCUR 功能描述:8位微控制器 -MCU 20MHz Ind. Grade RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY84A-MF 制造商:Atmel Corporation 功能描述:IC MCU 8BIT 8KB FLASH 20QFN 制造商:Atmel Corporation 功能描述:AVR, 8K FLASH 2K SRAM, 1KB EEPROM - 16MHz, 4x4 WQFN, High Grade +125C, Green
ATTINY84A-MFR 制造商:Atmel Corporation 功能描述:16MHZ,4X4WQFN,HIGH GRADE +125C,GREEN,T&R - Tape and Reel 制造商:Atmel Corporation 功能描述:IC MCU 8BIT 8KB FLASH 20QFN 制造商:Atmel Corporation 功能描述:AVR, 8K FLASH 2K SRAM, 1KB EEPROM - 16MHz,4x4WQFN,High Grade +125C,Green,T&R
ATTINY84A-MMH 功能描述:8位微控制器 -MCU 20MHz Ind. Grade RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY84A-MMHR 功能描述:8位微控制器 -MCU 20MHz Ind Grade RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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