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參數(shù)資料
| 型號： | AT90USB82-16MU |
| 廠商： | Atmel |
| 文件頁數(shù)： | 38/38頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AVR MCU 8K FLASH 32QFN |
| 產(chǎn)品培訓(xùn)模塊： | MCU Product Line Introduction megaAVR Introduction |
| 標準包裝： | 2,450 |
| 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(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 22 |
| 程序存儲器容量： | 8KB（8K 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-VFQFN 裸露焊盤 |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 611 (CN2011-ZH PDF) |
| 配用： | ATSTK600-TQFP32-ND - STK600 SOCKET/ADAPTER 32-TQFP 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 |
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9
7707F–AVR–11/10
AT90USB82/162
The fast-access Register File contains 32 x 8-bit general purpose working registers with a single
clock cycle access time. This allows single-cycle Arithmetic Logic Unit (ALU) operation. In a typ-
ical ALU operation, two operands are output from the Register File, the operation is executed,
and the result is stored back in the Register File – in one clock cycle.
Six of the 32 registers can be used as three 16-bit indirect address register pointers for Data
Space addressing – enabling efficient address calculations. One of these address pointers can
also be used as an address pointer for look up tables in Flash program memory. These added
function registers are the 16-bit X-, Y-, and Z-register, described later in this section.
The ALU supports arithmetic and logic operations between registers or between a constant and
a register. Single register operations can also be executed in the ALU. After an arithmetic opera-
tion, the Status Register is updated to reflect information about the result of the operation.
Program flow is provided by conditional and unconditional jump and call instructions, able to
directly address the whole address space. Most AVR instructions have a single 16-bit word for-
mat. Every program memory address contains a 16- or 32-bit instruction.
Program Flash memory space is divided in two sections, the Boot Program section and the
Application Program section. Both sections have dedicated Lock bits for write and read/write
protection. The SPM instruction that writes into the Application Flash memory section must
reside in the Boot Program section.
During interrupts and subroutine calls, the return address Program Counter (PC) is stored on the
Stack. The Stack is effectively allocated in the general data SRAM, and consequently the Stack
size is only limited by the total SRAM size and the usage of the SRAM. All user programs must
initialize the SP in the Reset routine (before subroutines or interrupts are executed). The Stack
Pointer (SP) is read/write accessible in the I/O space. The data SRAM can easily be accessed
through the five different addressing modes supported in the AVR architecture.
The memory spaces in the AVR architecture are all linear and regular memory maps.
A flexible interrupt module has its control registers in the I/O space with an additional Global
Interrupt Enable bit in the Status Register. All interrupts have a separate Interrupt Vector in the
Interrupt Vector table. The interrupts have priority in accordance with their Interrupt Vector posi-
tion. The lower the Interrupt Vector address, the higher the priority.
The I/O memory space contains 64 addresses for CPU peripheral functions as Control Regis-
ters, SPI, and other I/O functions. The I/O Memory can be accessed directly, or as the Data
Space locations following those of the Register File, 0x20 - 0x5F. In addition, the
AT90USB82/162 has Extended I/O space from 0x60 - 0xFF in SRAM where only the
ST/STS/STD and LD/LDS/LDD instructions can be used.
4.3
ALU – Arithmetic Logic Unit
The high-performance AVR ALU operates in direct connection with all the 32 general purpose
working registers. Within a single clock cycle, arithmetic operations between general purpose
registers or between a register and an immediate are executed. The ALU operations are divided
into three main categories – arithmetic, logical, and bit-functions. See the “Instruction Set” sec-
tion for a detailed description.
4.4
Status Register
The Status Register contains information about the result of the most recently executed arithme-
tic instruction. This information can be used for altering program flow in order to perform
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參數(shù)描述 |
|---|---|
| AT90USB82-16MUR | 功能描述:8位微控制器 -MCU 8K 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(fēng)格:SMD/SMT |
| AT90USBKEY | 功能描述:開發(fā)板和工具包 - AVR Demo board f/AVR MCU & AT90USB RoHS:否 制造商:Arduino 產(chǎn)品:Evaluation Boards 工具用于評估:ATMega32U4 核心:AVR 接口類型:I2C, UART, USB 工作電源電壓:6 V to 20 V |
| AT90USBKEY2 | 功能描述:開發(fā)板和工具包 - AVR AVR USB Eval Kit RoHS:否 制造商:Arduino 產(chǎn)品:Evaluation Boards 工具用于評估:ATMega32U4 核心:AVR 接口類型:I2C, UART, USB 工作電源電壓:6 V to 20 V |
| AT-910 | 制造商:HRS 制造商全稱:HRS 功能描述:Stripline Mounting Fixed Attenuators (DC to 8 GHz) |
| AT-910(40) | 功能描述:衰減器 -IC RoHS:否 制造商:Skyworks Solutions, Inc. 最大衰減:18 dB 容差: 阻抗: 功率額定值:30 dBm 安裝風(fēng)格:SMD/SMT 工作溫度范圍:- 40 C to + 85 C |
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