Atmel STK526, Руководство пользователя, Страница: 37 / 38

Complete Schematics
STK526 rev. B Hardware User Guide 6-37
7709B–AVR–05/07
6.0.1 Default Configuration - Summary
Table 6-2 . Default Configuration summary
1 U4 AT45DB642C 8Mo dataflash memory CASON8
1 U5 MAX3 RS232 transceiver SSOP16
1 U8 LM340 5V regulator SOT223
1 U6 LP3982IMM-ADJ LDO regulator 3V3 (Vin max 6V), 300mA MSOP8
1 U7 DBS104G Diode bridge 400V 1A Special
1 U3 BC847BPN Transistor double NPN/PNP Ic max = 200mA SC-88
MISCELLANEOUS
2 SW1, SW2 Pushbutton Normally Open ; 1.6N 6x3.5mm
1 SW3 TPA511G 4 ways jo center CMS mount Special
7 TP1-TP7 Test Point Test point for measurements D=1.32mm
1 Y1 8MHz 8MHz crystal HQ49/4H
4 JP1-JP4 Shunts Shunts for configuration headers N/A
Table 6-1 . Bill of Materials
Qtty
Schematic
Reference
Part Reference Description Case
Name Ref. Function State
Jumpers
STK X1 JP1 AT90USB82/162
Clock configuration pin X1
OPEN
STK X2 JP2 AT90USB82/162
Clock configuration pin X2
OPEN
VCC
SOURCE JP3 Primary power source selection “VBUS” position
3V3 REG JP4 AT90USB82/162
I/O power selection
“NOREG”
position
Solder PADS
SP1 TTL - CTS OPEN
SP2 RS232 - CTS OPEN
SP3 TTL - RTS OPEN
SP4 RS232 - RTS OPEN
Configuration PADS
CP1 Connect VBUS to 3V3 on-board regulator CLOSED