參數(shù)資料
型號: AT90USB162-16AU
廠商: Atmel
文件頁數(shù): 18/38頁
文件大小: 0K
描述: MCU AVR USB 16K FLASH 32-TQFP
產(chǎn)品培訓模塊: MCU Product Line Introduction
megaAVR Introduction
標準包裝: 1,250
系列: AVR® 90USB
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: EBI/EMI,PS/2,SPI,UART/USART,USB
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 32-TQFP
包裝: 托盤
配用: ATSTK600-RC20-ND - STK600 ROUTING CARD AVR
ATSTK600-ND - DEV KIT FOR AVR/AVR32
ATSTK526-ND - KIT STARTER FOR AT90USB82/162
ATAVRDRAGON-ND - KIT DRAGON FLASH MEM AVR
ATSTK525-ND - KIT STARTER FOR AT90USB
AT90USBKEY2-ND - KIT DEMO FOR AT90USB
25
7707F–AVR–11/10
AT90USB82/162
6.
System Clock and Clock Options
6.1
Clock Systems and their Distribution
Figure 6-1 presents the principal clock systems in the AVR and their distribution. All of the clocks
need not be active at a given time. In order to reduce power consumption, the clocks to modules
not being used can be halted by using different sleep modes, as described in “Power Manage-
ment and Sleep Modes” on page 41. The clock systems are detailed below.
Figure 6-1.
Clock Distribution
6.1.1
CPU Clock – clk
CPU
The CPU clock is routed to parts of the system concerned with operation of the AVR core.
Examples of such modules are the General Purpose Register File, the Status Register and the
data memory holding the Stack Pointer. Halting the CPU clock inhibits the core from performing
general operations and calculations.
6.1.2
I/O Clock – clk
I/O
The I/O clock is used by the majority of the I/O modules, like Timer/Counters, SPI, and USART.
The I/O clock is also used by the External Interrupt module, but note that some external inter-
rupts are detected by asynchronous logic, allowing such interrupts to be detected even if the I/O
clock is halted.
6.1.3
Flash Clock – clk
FLASH
The Flash clock controls operation of the Flash interface. The Flash clock is usually active simul-
taneously with the CPU clock.
General I/O
Modules
CPU Core
RAM
clk
I/O
AVR Clock
Control Unit
clk
CPU
Flash and
EEPROM
clk
FLASH
Source clock
Watchdog Timer
Reset Logic
Clock
Multiplexer
Watchdog clock
Calibrated RC
Oscillator
Crystal
Oscillator
External Clock
System Clock
Prescaler
Clock
Switch
Watchdog
Oscillator
USB
clk
USB (48MHz)
PLL Clock
Prescaler
clk
Pllin (8MHz)
USB PLL
X6
clk
XTAL (2-16 MHz)
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AT90USB162-16AUR 功能描述:8位微控制器 -MCU 16K Flash 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
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AT90USB162-16MUR 功能描述:8位微控制器 -MCU 16K Flash 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
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AT90USB646_0607 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 64/128K Bytes of ISP Flash and USB Controller