User manual

Complete Schematics
6-20 AT90USBKey Hardware User Guide
7627A–AVR–04/06
Figure 6-2 . Schematics, 2 of 2
PE0
VCC3
!!! R21 not mounted
D2
IN
1
GND
2
OUT
3
U5
LM340
-
C14
4.7uF
VCC3
When mounting R21:
R20 not mounted
U4 not mounted
Allows to generate 3.3V
from U1 internal regulator
CAUTION: R21 default not mounted !!!
VBUS generator for OTG/HOST mode
1F <Cap Vbus < 6F OTG Specif ication
5V
VBUS
VBAT
RESET
D4
LL4148
PF[7..0]
JTAG Interface
VCC
DECOUPLING CAPACITOR
CLOSE TO THE CONNECTOR
TCK
1
GND
2
TDO
3
VCC
4
TMS
5
RESET
6
VCC
7
n.c.
8
TDI
9
GND
10
CON 2x5
J9
CON 2x5
2.54 mm JTAG CON
C20
100nF
PF4PF4
PF7
PF6
PF5PF5
R26
0
VCC3
VCC
VCC3
R25
100k
-
C16
4.7uF
D1
TOPLED LP M676
POWER LED(RED)
R19
124k 1%
U3out=1.25*(1+(R15+R18)/R19)
Temp Sensor
PF[7..0]
R29
NCP18WF104J03RB
R27
100k
PF0
VCC
R28
220k
R18100k 1%
R13
1k
R30
100k
D3
LL4148
Data Flash
A90USB Key
DECOUPLING CAPACITOR
CLOSE TO THE DEVICE
C12
100nF
PB[7..0]
PB1
R9
100k
RESET
PB3
PB2
VBAT
VCC
Select
5
Lef t
7
Up
3
Right
6
Down
4
Com1
1
Com2
2
SW3
TPA511G
PE[7..0]
Q1
BC847B
PB[7..0]
PB6
PB5
PE5
PE4
PB7
Joystick Interface
D5
SI
1
SCK
2
RESET
3
CS
4
WP
5
VCC
6
GND
7
SO
8
U2
AT45DB642D CASON8
R141k
PF3
Title
Size Document Number Rev
Date: Sheet
of
<Doc> 1.0.0
Power & Interf aces
A4
22Saturday , February 18, 2006
R171k
LEDs
In-line Grouped LEDs
PD4
PD5
PD7
PD[7..0]
PD6
R221k
C17
220nF
VBat Mon.
VCC
R231k
VCC3
-
C19
4.7uF
5V
PE1
VCC3
VCC3
VCC3
DECOUPLING CAPACITOR
CLOSE TO THE DEVICE
C13
100nF
RESET
PB1
R10
100k
PB3
PB2
SI
1
SCK
2
RESET
3
CS
4
WP
5
VCC
6
GND
7
SO
8
U3
AT45DB642D CASON8
R12
100k
R24
10k
R15
100k 1%
MTA
Ext power supply
1
2
J8
C18
100nF
VCC
OUT
1
IN
2
GND
3
OUT
4
FAULT
8
SHDN
7
CC
6
SET
5
U4
LP3982
C15
33nF
R11
100k
(not mounted)
M1
FDV304P/FAI
D6
LL4148
R16
0
R20
0
UCAP
UVCON
R21
0
VCC
VBUS