ATSTK526 Atmel, ATSTK526 Datasheet - Page 12

• Manufacturer Part Number: ATSTK526
• Description: KIT STARTER FOR AT90USB82/162
• Manufacturer: Atmel
• Series: AVR®r
• Type: MCUr

Specifications of ATSTK526

• Contents: Starter Kit Board, Power Supply, Cable and Software
• Processor To Be Evaluated: AT90USB82/162
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Silicon Core Number: AT90USB82, AT90USB162
• Kit Contents: Board Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT90USB162, AT90USB82
• For Use With: ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.4
2.4.1
2.4.2
2.5
2.5.1
STK526 rev. B Hardware User Guide
AT90USB82/162 AVR Microcontroller
Main Clock XTAL
Analog Power Supply
Serial Links
USB
AVCC AVCC is tied to VCC by hardware.
To use the USB interface of the AT90USBxxx, the clock source should always be a
crystal or external clock oscillator (the internal 8MHz RC oscillator is not accurate
enough to comply with the USB specification). Only the following crystal frequency
allows proper USB operations: 8MHz and 16MHz. The STK526 comes with a default
8MHz crystal oscillator.
If STK526 is connected to an STK500 and the jumpers “STKX1” and “STKX2” are set,
the STK526 microcontroller operates with the “STK500 Osc” frequency parameter. The
STK500 clock prevails over the STK526 crystal.
Figure 2-8 . STKX1 and STKX2 jumpers on STK526
The STK526 is supplied with a standard USB type-B receptacle (identifying the board as
a Device only) that aims to receive a B-plug
Figure 2-9 . USB type-B receptacle
Using the STK526
7709B–AVR–07/08
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