Introduction
1-4
STK525 Hardware User Guide
7608A–AVR–04/06
Figure 1-1 . STK525 Board
1.2
STK525 Starter Kit Features
The STK525 provides the following features:
AT90USBxxx TQFP device (2.7V<Vcc<5.5V),
AVR Studio® software interface
(1)
,
USB software interface for Device Firmware Upgrade (DFU bootloader)
(2)
STK500 compatible
Power supply flagged by “VCC-ON” LED:
– regulated 3 or 5V,
– from an external power connector,
– from the USB interface (USB device bus powered application),
– from STK500
(2)
,
ISP connector for on-chip ISP,
JTAG connector:
– for on-chip ISP,
– for on-chip debugging using JTAG ICE,
Serial interfaces:
– 1 USB full/low speed device/host interface
– RS-232C ports with RTS/CTS handshake lines,
On-board resources:
– 4+1-ways joystick,
– 4 LEDs,
– temperature sensor,
– microphone,
– serial dataflash memory,
