AT90USBKey Hardware User Guide
AT90USBKey Hardware User Guide
AT90USBKey Hardware User Guide
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Complete Schematics<br />
VCC3<br />
Data Flash<br />
PB[7..0]<br />
6-20 <strong>AT90USBKey</strong> <strong>Hardware</strong> <strong>User</strong> <strong>Guide</strong><br />
7627A–AVR–04/06<br />
VCC<br />
VCC<br />
VCC3<br />
DECOUPLING CAPACITOR<br />
CLOSE TO THE DEVICE<br />
VCC3<br />
DECOUPLING CAPACITOR<br />
CLOSE TO THE DEVICE<br />
VCC3<br />
POWER LED(RED)<br />
TOPLED LP M676<br />
D1<br />
C12<br />
100nF<br />
C13<br />
100nF<br />
R9<br />
100k<br />
C14<br />
4.7uF<br />
R10<br />
100k<br />
-<br />
VCC3<br />
VCC3<br />
R13<br />
1k<br />
SI<br />
SCK<br />
RESET<br />
CS WP 5<br />
VCC 6<br />
GND 7<br />
SO 8<br />
U3<br />
AT45DB642D CASON8<br />
1<br />
2<br />
3<br />
4<br />
PE1<br />
PB1<br />
PB2<br />
PB3<br />
RESET<br />
R11<br />
100k<br />
R12<br />
100k<br />
SI<br />
SCK<br />
RESET<br />
CS WP 5<br />
VCC 6<br />
GND 7<br />
SO 8<br />
U2<br />
AT45DB642D CASON8<br />
1<br />
2<br />
3<br />
4<br />
PE0<br />
PB1<br />
PB2<br />
PB3<br />
RESET<br />
Figure 6-2 . Schematics, 2 of 2<br />
When mounting R21:<br />
R20 not mounted<br />
U4 not mounted<br />
Allows to generate 3.3V<br />
from U1 internal regulator<br />
CAUTION: R21 default not mounted !!!<br />
In-line Grouped LEDs<br />
LEDs<br />
D2<br />
D3<br />
R14<br />
1k<br />
VCC3<br />
U4<br />
PD[7..0]<br />
PD4<br />
VCC3<br />
5V<br />
VBUS<br />
R17<br />
1k<br />
PD5<br />
R15<br />
100k 1%<br />
1<br />
OUT<br />
4<br />
OUT<br />
8<br />
FAULT<br />
CC 6<br />
5<br />
SET<br />
IN<br />
SHDN<br />
2<br />
7<br />
R16<br />
LL4148<br />
UCAP<br />
GND<br />
3<br />
VCC<br />
0 R20<br />
100k 1% R18<br />
D4<br />
LL4148<br />
R22<br />
1k<br />
D5<br />
VCC<br />
33nF<br />
C15<br />
LP3982<br />
PD6<br />
R23<br />
1k<br />
R21<br />
0<br />
5V<br />
R19<br />
124k 1%<br />
U3out=1.25*(1+(R15+R18)/R19)<br />
PD7<br />
0<br />
!!! R21 not mounted<br />
FDV304P/FAI<br />
U5<br />
D6<br />
VBUS<br />
3<br />
OUT<br />
IN<br />
1<br />
VBAT<br />
J8<br />
M1<br />
R24<br />
10k<br />
100nF<br />
C18<br />
GND<br />
2<br />
220nF<br />
C17<br />
LM340<br />
-<br />
C16<br />
4.7uF<br />
LL4148<br />
2<br />
1<br />
Joystick Interface<br />
PB[7..0]<br />
R25<br />
SW3<br />
C19<br />
4.7uF<br />
Q1<br />
BC847B<br />
UVCON<br />
MTA<br />
Ext power supply<br />
-<br />
PB5<br />
PB6<br />
PB7<br />
100k<br />
PE4<br />
PE5<br />
5<br />
7<br />
3<br />
6<br />
4<br />
Select<br />
Lef t<br />
Up<br />
Right<br />
Down<br />
VBat Mon.<br />
Temp Sensor<br />
VBAT<br />
Com1<br />
Com2<br />
TPA511G<br />
1<br />
2<br />
PE[7..0]<br />
PF[7..0]<br />
VBUS generator f or OTG/HOST mode<br />
1 F
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