User manual

Complete Schematics
AT90USBKey Hardware User Guide 6-19
7627A–AVR–04/06
Figure 6-1 . Schematics, 1 of 2
C7
1uF
C3216-A
VBUS
RST
RST
DTSM-3
AVCC
PD[7..0]
PD[7..0]
PA0
UCAP Capacitor
Closed to the MCU
VCC
PA1
R4 0
R0603
PE0
PF7
PE2
PE1
PE4
PE3
PE6
PE[7..0]
PE5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J2
1.27 mm Dual
H1.27-10
PE7
PA3
UGND
(not mounted)
PE2
VCC
PA[7..0]PA[7..0]PA[7..0]
PF0
PA2
RESET
PA4
PF2
Reset Circuit
UVCON
VBUS
PA5
HWB
HWB
DTSM-3
R1 0
R0603
PF4
RESET
UGND
R8 0
R0603
PA6
AGND
C1
100nF
C0603
PF1
UCAP
PA7
(not mounted)
(not mounted)
(not mounted)
PF3
PE2
PF[7..0]
PC7
R5 0
R0603
VCC
C9
220nF
C0603
(not mounted)
PE4
VCC
PB[7..0]
PB[7..0]PB[7..0]
PE5
PC6
VCC AVCC
C2
100nF
C0603
GND
Title
Size Document Number Rev
Date: Sheet
of
<Doc>
1.0.0
CPU
A4
12Monday , January 09, 2006
PE6PE6
PF6
PC5
PD0
PD2
PD1
PD4
PD3
PD6
PD[7..0]
PD5
(not mounted)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J4
1.27 mm Dual
H1.27-10
PD7
PC4
QFN64
VCC
PB0
VCC
Ferrite & capacitors
closed to the MCU
PB0
PB2
PB1
PB4
PB1
PB3
PB6
PB[7..0]
PB5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J6
1.27 mm Dual
H1.27-10
PB7
PA0
1-V_BUS
3-D+
2-D-
4-ID
5-GND
SHIELDSHIELDSHIELDSHIELD
USB_MiniABF
<ASSEMBLY>J3
MINI_USBC
PA2
PA1
PA4
PA3
PA6
PA[7..0]
PB2
PA5
PC3
PF[7..0]
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J7
1.27 mm Dual
H1.27-10
PA7
R6
47k
R0603
PE7
2
UVcc
3
D-
4
D+
5
UGND
6
UCAP
7
VBUS
8
PE3
9
PB0
10
PB1
11
PB2
12
PB3
13
PB4
14
PB5
15
PB6
16
PB7
17
PD0
25
PD1
26
PD2
27
PD3
28
PD4
29
PD5
30
PD6
31
PD7
32
PE4
18
PE5
19
AREF
62
RESET
20
GND
53
GND
63
GND
22
XTAL2
23
XTAL1
24
PE0
33
PE1
34
PE6
1
PE2
43
PC0
35
PC1
36
PC2
37
PC3
38
PC4
39
PC5
40
PC6
41
PC7
42
PA7
44
PA6
45
PA5
46
PA4
47
PA3
48
PA2
49
PA1
50
PA0
51
PF7
54
PF6
55
PF5
56
PF4
57
PF3
58
PF2
59
PF1
60
PF0
61
VCC
52
VCC
21
AVCC
64
AT90USB128
U1
QFN64
PB3
UVCON PE7
C5
100nF
C0603
VCC
DECOUPLING CAPACITORS
CLOSED TO THE DEVICE
MCU Pin3
VBUS
PC2
PB4
Y1 8MHz CRYSTAL
8MHz
49US
C11
15pF
C0603
C10
15pF
C0603
PC1
PB5
PC0
PC2
PC1
PC4
PC3
PC6
PC[7..0]
PC5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J5
1.27 mm Dual
H1.27-10
PC7
VBUS
AREF
PC0
PB6
PE[7..0]
PE1
PB7
VCC
PF0
PE0
C8
220nF
C0603
UGND UGNDUGNDUGNDUGND
PC[7..0]
PC[7..0]
C3
100nF
C0603
GND
PF1
R3 22
R0603
R7
47k
R0603
R2 22
R0603
RESET
D+
C4
100nF
C0603
D-
UID PE3
PF2
A90USB Key
VCC
GND
PD0
XTAL2
PD1
PD2
PF5
PF3
PD3
AGND
CR1
PGB0010603
R0603
PA[7..0]PA[7..0]PA[7..0]
CR2
PGB0010603
R0603
PD4
XTAL1
VCC
PD5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J1
1.27 mm Dual
H1.27-10
PD6
DECOUPLING CAPACITORS
CLOSED TO THE DEVICE
MCU Pin52
RESISTORS
CLOSED TO THE DEVICE
PD7
PF4
VCC
XTAL2
VCC
UCAP
PF7
UVCC
D+ D- RESISTORS
Closed to the MCU
PF5
Bootloader Activation
C6
100nF
C0603
VCC
PA[7..0]
VCC
AREF
DECOUPLING CAPACITORS
CLOSED TO THE DEVICE
MCU Pin21
PF6
XTAL1