Datasheet

Evaluates: MAX3420E
MAX3420E Evaluation Kit-2
_______________________________________________________________________________________ 7
MAX3420E
U1
GPOUT0
1
GPO0
H1-2 H1-4 H1-6 H1-8
H1-10 H1-12 H1-14 H1-16 H1-18 H1-20
GPO1
GPOUT1
R4
10kΩ
2
V
L
3
V
L
4
C3 1µF
N.C.
16
VL
GND
3.3V
5
GND
6
GPO2
GPOUT2
7
GPO3
GPOUT3
8
C8 1µF
R2 33.2Ω 1%
R1 33.2Ω 1%
24
25
23
C7
2.2µF
21 1922 20 18 17
XI
26
XO
27
N.C.
28
GPIN0
V
L
= 3.3V --- JUMPER JU10:1–2
EXT V
L
--- REMOVE JUMPER
AND SUPPLY V
L
ON H1:9
29
GPIN1
30
GPIN2
31
Y1
12MHz
VBUS
1
D+
3
D-
2
GND
4
GPIN3
32
3.3V
1 2
JU10
3
1 2
JU5
3
INT
N.C.
15
GPX
14
C4 18pF
C5 18pF
MOSI
13
MISO
12
SS
11
SCLK
10
RES
9
N.C.
RES GPX
SCLK
ATSCLK CONSCLK
GPO3
1 2
JU4
3
ATMISO CONMISO
1 2
JU1
3
ATINT CONINT
1 2
JU2
3
GND
ATSS
ATSS
CONSS
1 2
JU3
3
ATMOSI CONMOSI
SS
MISO
GPI3 GPI2 GPI1 GPI0
INT MOSI
3.3V
RED
D5
R3
150Ω
3.3V
VBCOMP V
CC
V
CC
D+ D- GND GND INT
6
SHIELD
5
SHIELD
IN
1
GND
2
MR
3
5
SET
4 6
OUT
RESET
1 2
JU11
3
USB TYPE B
MAX6349
U2
P1
RES
C2 1µF
C1
2.2µF
GRN
R6
150Ω
JU6
GPO2
GRN
R7
150Ω
JU7
GPO1
GRN
R8
150Ω
JU8
TP1
GPO0
GRN
D4
D3
D2
D1
R9
150Ω
JU9
BUS POWER --- JUMPER JU1:1–2 EXT POWER --- REMOVE JUMPER AND SUPPLY 5V ON JU11:2 GND ON JU11:3
GND
TP2
GND
TP3
PA2/RES/DW
1
PD0/RXD
2
PD1/TXD
3
18
PB6/MISO/D0
17 19
PB7/USCK/SCL
PB5/MOSI/D1
U3
ATTINY2313
GND
ATMOSI
PA1/XTAL2
4
16
PB4/OC1B
PA0/XTAL1
5
15
PB3/OC1A
ATINT
PD2/CKOUT/XCK
6
PD3/INT1
7
14
PB2/OC0A
13
PB1/AIN1
PD4/T0
8
12
PB0/AIN0
PD5/OC0B/T1
9
10
VCC
3.3V
20
11
PD6/ICP
ATMISO ATSCLK
RES
DRES
R5
10kΩ
C6 1µF
3.3V
H1-1 CONINT H1-3 H1-5 H1-7 H1-9 H1-11 H1-13 H1-15 H1-17 H1-19
H1
GPX
CONMISO CONSCLK
GPO3
VL
GPO0
GPI2 GPI0
CONMOSI CONSS RES GPO2 GPO1 GPI3 GPI1
H2-1 H2-2 H2-3 H2-4 H2-5 H2-6 H2-7 H2-8
H2
GPX MOSI MISO SS INT SCLK
H3-2 H3-4 H3-6
H3-1 H3-3 H3-5
H3
ATMISO
ATSCLK
DRES
ATMOSI
3.3V
GPI3
SW4
GPI2
SW3
GPI1
SW2
GPI0
4 4 4 4
1 1 1 1
SW1
Figure 3. MAX3420E EV Kit-2 Schematic