Microchip Technology AVR128DB48 Curiosity Nano, Руководство пользователя по оборудованию

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8. Appendix
8.1 Schematic
Figure 8-1. AVR128DB48 Curiosity Nano Schematic
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
D
D
C
C
B
B
A
A
2
of
4
A
V
R
12
8DB
48
Cu
ri
osi
ty
Na
n
o
24
.0
8.
20
20
A
V
R
12
8D
B
48
_Cu
ri
os
ity
_N
an
o_
Ta
rg
et
_M
C
U
.S
ch
D
oc
Pr
oj
ec
t T
itle
PC
B
A
ss
em
bly
N
umber:
PC
B
A
R
ev
ision:
File:
PC
B
Nu
mber:
PC
B
Re
vision:
Desig
n
ed w
ith
Dra
wn
By
:
M
L
Sh
ee
t T
itle
Ta
rg
et
M
C
U
E
ng
ineer:
A
H
A
08-3057
1
Size
A
3
A
09-3372
2
Pa
ge:
Date:
A
lti
um
.c
om
GND
V
D
D
IO2
100n C201
GND
PA
5_
SP
I0
_M
IS
O
PA
6_
SP
I0
_S
CK
PA
7_
SP
I0
_S
S
PB
0_
U
SA
R
T3_TX
PB
1_
U
SA
R
T3_RX
PB
2_
SW0_DBG2
PB
3_
L
ED0_DBG1
PB4 PB5 PC0 PC1 PC2
PC3
PC4
PC5
PC6
PC7
PD0_AIN0_TCA0_WO0
PD1_AIN1_OP0_I NP_TCA0_WO1
PD2_AIN2_OP0_OUT_TCA0_WO2
PD3_AIN3_OP0_I NN
PD4_AIN4_OP1_I NP
PA3_TWI 0_SCL
PA1_XT ALHF2
UPDI_DBG0
PF5_USAR T2_RX
PF3
PF2 PF
1_
X
T
A
L
32K2
PF
0_
X
T
A
L
32K1
PE
3_
O
P2
_I
NN
PE2_OP2_OUT PE
1_
O
P2
_I
NP
PE0 PD
5_
A
IN5_OP1_OUT
PD
6_
A
IN6
PD
7_
A
IN
7_
O
P1
_INN
GND
V
C
C
_T
A
RGET
100n C202
GND
V
C
C
_T
A
RGET
100n C200
PF1_XTAL 32K2
PF0_XTAL 32K1
PA2_TWI 0_SDA
PA0_XT ALHF1
PF4_USAR T2_TX
PA4_S PI0_MOS I
GND
PA
7_
SP
I0
_S
S
PA
6_
SP
I0
_S
CK
PA
5_
SP
I0
_M
IS
O
PA
4_
SP
I0
_M
O
SI
PA
3_
T
W
I0
_S
C
L
PA
2_
T
W
I0
_S
D
A
PC0 PC1 PC2 PC3
PB4 PB5
PD
7_
A
IN
7_
O
P1
_INN
PD
6_
A
IN6
PD
2_
A
IN2
_O
P0_
OU
T_T
CA
0_WO2
PD
1_
A
IN
1_
O
P0
_IN
P_
TC
A
0_WO1
PD
0_
A
IN
0_
T
C
A
0_WO0
PD
5_
A
IN5_OP1_OUT
PD
4_
A
IN
4_
O
P1
_INP
PD
3_
A
IN
3_
O
P0
_INN
32
K
H
z
C
ry
st
al
PB
0_
U
SA
R
T3_TX
PB
1_
U
SA
R
T3_RX
1k
R203
U
SE
R
L
E
D
V
C
C
_T
A
RGET
PF6_DBG3
PB2_SW0_DBG2
PB3_LED0_DBG1
GND
U
SE
R
BU
T
T
O
N
PB
3_
L
ED0_DBG1
PB
2_
SW0_DBG2
PB
1_
U
SA
R
T3_RX
PB
0_
U
SA
R
T3_TX
PF
4_
U
SA
R
T2_TX
PF
5_
U
SA
R
T2_RX
PF2 PF3
PC4 PC5 PC6 PC7
1k
R202
YELL OWL ED
SML -D12Y1WT86
2 1
D200
TS604VM1-035CR
1 3
4 2
SW200
GND VCC_EDGE GND
GND
GND
GND
U
PD
I_DBG0
PF6_DBG3
J209
PB
3_
L
ED0_DBG1
PB
2_
SW0_DBG2
A
VR128DB48
2.
2u
F
C205
VCC_EDGE
GND
D
B
G
0
CDC_TX
CDC_RX
DBG2
D
B
G
1
D
B
G
3
D
B
G
2
DE
BUG
G
E
R
C
O
NNE
C
T
IO
NS
DBG1
DBG3
DBG0
V
O
F
F
I
D
_
S
Y
S
ID_S YS
VOFF
T
A
R
G
E
T
B
UL
K
V
C
C
_T
A
RGET
R
E
SE
T
P
u
ll
V
B
U
S
C
D
C
R
X
3
CDC
T
X
4
D
B
G
1
5
D
B
G
2
6
0
T
X
7
1
R
X
8
2
SD
A
9
3 S
CL
1
0
4 M
OS
I
1
1
5 M
IS
O
1
2
6
S
C
K
1
3
7
S
S
1
4
GN
D
1
5
0
(T
X
)
1
6
1 (RX
)
1
7
2
1
8
3
1
9
0
2
0
GN
D
2
4
D
B
G
3
5
4
D
B
G
0
5
3
GN
D
5
2
V
C
C
5
1
P
W
M
3
4
6
A
D
C
2
4
5
A
D
C
1
4
4
A
D
C
0
4
3
GN
D
4
2
4
3
8
4
3
4
GN
D
3
3
A
D
C
7
5
0
A
D
C
6
4
9
A
D
C
5
4
8
P
W
M
4
4
7
DEBUGGER
TA
RGET
ID
2
VOFF
5
5
1
2
1
2
2
2
3
2
3
0
2
5
1
2
6
2
2
7
3
2
8
4
2
9
5
3
0
6
3
1
7
3
2
5
3
5
6
3
6
7
3
7
5
3
9
6
4
0
7
4
1
R
E
SE
R
V
E
D
1
V
B
U
S
5
6
C
N
A
NO56
-pin
edge con
nec
tor
J200
J201 J203 J205 J206
J202 J204
PF
1_
X
T
A
L
32K2
PF
0_
X
T
A
L
32K1
NC
XOUT
XIN
47k
R200
A
VR
128DB48
U
PD
I
G
PI
O1
G
PI
O0
R
E
SE
T
D
B
G
0
D
B
G
1
D
B
G
2
D
B
G
3
De
bu
gg
er
C
DC
T
X
C
DC
R
X
U
A
R
T
3
R
X
U
A
R
T
3
T
X
V
T
G
1.8
V
- 5
.5
V
P
B3
P
B2
P
F
6
UP
DI
P
B0
P
B1
N
am
e
P
in
PE
3_
O
P2
_I
NN
PE2_OP2_OUT
PE
1_
O
P2
_I
NP
PE0
J207
J208
PF0 PF1
P
A
5
1
P
A
6
2
P
A
7
3
P
B
0
4
P
B
1
5
P
B
2
6
P
B
3
7
P
B
4
8
P
B
5
9
P
C
0
1
0
P
C
1
1
1
P
C
2
1
2
PC 3
13
VD DI O2
14
GN D
15
PC 4
16
PC 5
17
PC 6
18
PC 7
19
PD 0
20
PD 1
21
PD 2
22
PD 3
23
PD 4
24
P
D
5
2
5
P
D
6
2
6
P
D
7
2
7
A
V
D
D
2
8
G
N
D
2
9
P
E
0
3
0
P
E
1
3
1
P
E
2
3
2
P
E
3
3
3
X
T
A
L
3
2
K
1
/
P
F
0
3
4
X
T
A
L
3
2
K
2
/
P
F
1
3
5
P
F
2
3
6
PF 3
37
PF 4
38
PF 5
39
PF 6
40
UP DI
41
VD D
42
GN D
43
XT AL HF 1/ PA 0
44
XT AL HF 2/ PA 1
45
PA 2
46
PA 3
47
PA 4
48
A
VR
12
8D
B4
8-
I/PT
U200
0R
R204
GND
V
C
C
_T
A
RGET
VD
DI
O
2
G
N
D
J210 J2
11
8.
2p
C204
8.
2p
C203
GND
GND
16M
H
z C
ry
st
al
J217
XHFOUT
XHFIN
J214 J213
GND
J215
J216
PA0_XT ALHF1
PA1_XT ALHF2
PA
0_
X
T
A
L
HF1
PA
1_
X
T
A
L
HF2
PA
0
PA
1
1 2
J212
N
.M
15pF C206
15pF C207
1
3
2
4
16.
00
0MHz
VXM7-9040-16M0000000TR
XC201
GND
32
.76
8k
Hz
VMK3-9001-32K7680000TR
XC200
C
D
C
_
T
X
C
D
C
_
R
X
CDC_TX CDC_RX
Cryst
al d
atash
eet:
Ccry
stal
= 9
pF
m
ax
E
SR
=
70k
O
hm
A
cc
ura
cy
±2
0p
pm
A
VR48DB
128 da
tashe
et:
Cxi
n =
4.0p
F (t
ypi
cal
valu
e)
Cxou
t =
4.0
pF (
typ
ical
valu
e)
C
l
≈
1/
(
(1
/4
.0
pF
)+
(
1/
4.
0p
F)
)
≈
2.
0p
F
M
ax
im
um
L
oa
d
=
12
.5
pF
M
ax
im
um
E
SR
=
50k
O
hm
E
st
im
at
ed
C
pc
b
=
0.
5p
F
E
st
im
at
ed
lo
ad
C
=
2
(C
cr
ys
ta
l-
C
pa
ra
-
C
pc
b)
C
=
2
(9p
F
-
2.
0pF
-
0.
5p
F)
C
=
13
.0
pF
Selected in desi
gn after verifica
tion
C=
8.
2pF
/8
.2
pF
NOTE on UAR
T/CDC:
RX
/T
X
on
th
e
he
ad
er
de
no
te
s
th
e
inpu
t/out
put
direc
tion
of t
he si
gn
al
re
sp
ec
tive to it
's
s
ou
rce
.
CDC TX is output from t
he
D
EB
UG
GE
R.
CD
C
RX
is
in
pu
t to
the
D
E
BU
GG
ER
.
TX is
outpu
t from
th
e
T
A
R
G
E
T
d
ev
ic
e.
RX
is
in
put
to
th
e T
A
R
G
E
T
d
ev
ic
e.
NOTE on I2C: No
p
ul
l-
up
s
on
b
oa
rd
. Pu
ll
-u
ps
s
ho
ul
d
be
m
ount
ed cl
ose to
slave d
ev
ic
e(
s)
.
W
A
R
N
IN
G
! M
ak
e
su
re
to
re
m
ov
e
R
20
4
be
fo
re
ap
ply
in
g p
owe
r
to
J
21
2.
Cryst
al d
atash
eet:
Ccry
stal
= 1
2pF
m
ax
E
SR
=
60O
hm
A
cc
ura
cy
±3
0p
pm
A
VR48DB
128 da
tashe
et:
Cxi
n =
4.0p
F (t
ypi
cal
valu
e)
Cxou
t =
4.0
pF (
typ
ical
valu
e)
C
l
≈
1/
(
(1
/4
.0
pF
)+
(
1/
4.
0p
F)
)
≈
2.
0p
F
M
ax
im
um
L
oa
d
=
12
.5
pF
M
ax
im
um
E
SR
= ?
?kO
hm
E
st
im
at
ed
C
pc
b
=
0.
5p
F
E
st
im
at
ed
lo
ad
C
=
2
(C
cr
ys
ta
l-
C
pa
ra
-
C
pc
b)
C
=
2
(
12p
F
-
2.
0pF
-
0.
5p
F)
C
=
19
.0
pF
Selected in desi
gn after verifica
tion
C= 15pF/15pF
AVR128DB48 Curiosity Nano
Appendix
©
2020 Microchip Technology Inc.
User Guide
DS50003037A-page 34