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參數(shù)資料
| 型號： | AT43USB321 |
| 廠商： | Atmel Corp. |
| 英文描述： | Full-speed USB Hub/Function Microcontroller |
| 中文描述： | 全速USB集線器/功能微控制器 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 60K |
| 代理商： | AT43USB321 |
1
Features
8-bit AVR
Core with 83 ns Instruction Cycle Time
16K Bytes ROM Program Memory
512 Bytes SRAM
32 x 8 General Purpose Working Registers
20 Programmable I/O Port Pins
Programmable Serial UART
SPI Serial Interface
One 8-bit Timer/Counter with Separate Prescaler
One 16-bit Timer/Counter with Separate Prescaler
External and Internal Interrupt Sources
Programmable Watchdog Timer with On-chip Oscillator
Bus-or Self-powered USB Hub with Four Downstream Ports
One Attached Function Port with Three Endpoints
Programmable 6/12 MHz Oscillator with PLL
On-chip 3.3V Supply for USB
42-pin SDIP and 48-lead TQFP Packages
Overview
The Atmel AT43USB321 is a single-chip microcontroller based USB hub with an
embedded function and a 16K byte masked ROM. The USB hub has five downstream
ports, one of which is permanently attached. Internally the AT43320 consists of a USB
hub and function interface, a hub repeater, and a high-performance, efficient 8-bit
RISC microcontroller. The hub and peripheral device controller function is imple-
mented in the microcontoller’s firmware. To the USB host, the embedded function
appears as an attached port of the hub with its own device address and endpoints.
The AT43USB321 can also be configured as a USB function without the hub.
The USB hardware block consists of a USB transceiver, SIE, hub repeater, endpoint
controllers, and an interface to the microcontroller. The USB hardware interfaces to
the USB host at the transaction level. The CPU of the microcontroller is based on the
Atmel AVR microcontroller. The AVR architecture was developed to be programmed
in C efficiently and with maximum performance.
Full-speed USB
Hub/Function
Microcontroller
AT43USB321
Rev. 1442A–08/99
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB324AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER |
| AT43USB324YC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER |
| AT43USB325 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
| AT43USB325_05 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub |
| AT43USB325E-AC | 功能描述:USB 接口集成電路 USB KEYBOARD CONTROL w/HUB - 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 |
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