参数资料
型号: ATSTK526
厂商: Atmel
文件页数: 13/40页
文件大小: 0K
描述: KIT STARTER FOR AT90USB82/162
产品培训模块: MCU Product Line Introduction
megaAVR Introduction
标准包装: 1
系列: AVR®
类型: MCU
适用于相关产品: AT90USB162,AT90USB82
所含物品: 入门套件板、电源、缆线和软件
产品目录页面: 615 (CN2011-ZH PDF)
配用: ATSTK500-ND - PROGRAMMER AVR STARTER KIT
相关产品: AT90USB82-16MUR-ND - MCU AVR USB 8K FLASH 32-QFN
AT90USB162-16MU-ND - MCU AVR USB 16K FLASH 32-QFN
AT90USB162-16AU-ND - MCU AVR USB 16K FLASH 32-TQFP
AT90USB162-16MURDKR-ND - IC AVR MCU 16K FLASH 32QFN
AT90USB162-16AURDKR-ND - IC AVR MCU 16K FLASH 32TQFP
AT90USB82-16MU-ND - IC AVR MCU 8K FLASH 32QFN
AT90USB162-16MURCT-ND - IC AVR MCU 16K FLASH 32QFN
AT90USB162-16AURCT-ND - IC AVR MCU 16K FLASH 32TQFP
AT90USB162-16MURTR-ND - IC AVR MCU 16K FLASH 32QFN
AT90USB162-16AURTR-ND - IC AVR MCU 16K FLASH 32TQFP
Using the STK526
VBUS Detection The board also implements a VBUS detection on a generic I/O. A low-power (50μA)
voltage divider (/2) is connected from VBUS to PortC bit 2 pin. The VBUS presence is
detected with a high level on the MCU pin.
VBUS Power Source Moreover, even if not selected as primary power source, VBUS powers the on-board
3.3V regulator (through a diode to avoid current being supplied to USB Host) in order to
get 3V3 voltage in any condition (this allows to power the dataflash at any time, or to
allow a USB Bus-powered operation with all the board at 3.3V.
However, this feature can make current flowing from VBUS to some board peripherals
even if an alternate power source is used to power the board. That may lead to
unwanted extra-consumption, so it can be disabled by cutting the configuration pad.
Figure 2-10 . Configuration Pad Location
2-12
7709B–AVR–07/08
Note:
See Section “Configuration Pads”, page 24 for details.
STK526 rev. B Hardware User Guide
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