參數(shù)資料
型號： AT43USB325E-AC
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Multimedia USB Keyboard Controller with Embedded Hub
中文描述： 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 1.40 MM HEIGHT, PLASTIC, MS-026-ACB, LQFP-64
文件頁數(shù)： 1/109頁
文件大小： 643K
代理商： AT43USB325E-AC
Features
AVR
8-bit RISC Microcontroller with 83 ns Instruction Cycle Time
USB Hub with One Attached and Four External Ports
USB Keyboard Function with Four Programmable Endpoints
16 KB Program Memory, 512-Byte Data SRAM
32 x 8 General-purpose Working Registers
42 Programmable I/O Port Pins
Support for 20 x 8 Keyboard Matrix
Keyboard Scan Inputs with Pull-up Resistor
Four LED Driver Outputs
One 8-bit Timer/Counter with Separate Pre-scaler
One 16-bit Timer/Counter with Separate Pre-scaler and Dual 8-, 9- or 10-bit PWM
External and Internal Interrupt Sources
Programmable Watchdog Timer
6-MHz Oscillator with On-chip PLL
5V Operation with On-chip 3.3V Power Supply
64-lead LQFP Package
1.
The Atmel AT43USB325 is an 8-bit microcontroller based on the AVR RISC architec-
ture. By executing powerful instructions in a single clock cycle, the AT43USB325
achieves throughputs approaching 12 MIPS. The AVR core combines a rich instruc-
tion set with 32 general-purpose working registers. All 32 registers are directly
connected to the ALU allowing two independent registers to be accessed in one single
instruction executed in one clock cycle. The resulting architecture is more code effi-
cient while achieving throughputs up to ten times faster than conventional CISC
microcontrollers.
Description
The AT43USB325 features an on-chip 16-Kbyte program memory and
512 bytes of data memory. It is supported by a standard set of peripherals such as
timer/counter modules, watchdog timer and internal and external interrupt sources.
The major peripheral included in the AT43USB325 is the USB Hub with an embedded
function and GPIO ports designed for use in a keyboard controller. The embedded
function has 4 endpoints that makes the AT43USB325 extremely suitable for key-
boards supporting the consumer page as described in the “USB Usage Tables”.
The AT43USB325 comes in two versions. The program memory of the
AT43USB325E is an SRAM that is automatically written from an external serial
EEPROM during power on. The AT43USB325M has a masked ROM program mem-
ory. The two versions are pin, function and binary compatible.
Multimedia
USB Keyboard
Controller with
Embedded Hub
AT43USB325
3355C–USB–4/05
相關(guān)PDF資料
PDF描述
AT43USB325E-AU Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AC Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AU Multimedia USB Keyboard Controller with Embedded Hub
AT43USB351M-AC Full-speed/Low-speed USB Microcontroller with ADC and PWM
AT43USB353M-AC Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB325E-AU 功能描述:USB 接口集成電路 USB KEYBOARD CONTROL w/HUB - IND TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB326 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB326_06 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AC 功能描述:USB 接口集成電路 USB KEYBOARD F/LOGI- TECH - COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB326-AU 功能描述:USB 接口集成電路 USB KEYBOARD FOR LOGITECH - IND TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
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