Datasheet
HFXIN
HFXOUT
SEG11/P1.3
SEG10/P1.2
1
3V3OUT
C21
0.033µF
R8
220I
D1
+5V
R7
27I
R15
OPEN
U3
OPEN
R14
OPEN
R6
27I
C22
22pF
C23
22pF
DI
+5V
+5V +3.3V +5V +2.5V +3.3V
+3.3V
+5V
+5V
DO
DC
R5
1.5kI
USB1
GND
+5V
+5V
+5V
6
68
SEG9/P1.1
67
SEG8/P1.0
66
SEG7/P0.7/INT3
65
SEG6/P0.6/INT2
64
SEG5/P0.5/INT1
63
SEG4/P0.4/INT0
62
18 19 20 21 22 23 24
SEG3/P0.3
61
SEG2/P0.2
60
SEG1/P0.1
59
SEG0/P0.0
58
VADJ
57
VLCD2
56
VLCD1
55
VLCD
54
P7.1/RX0/INT15
53
P7.0/ TX0/INT14
52
51
C29
0.1µF
C10
0.1µF
3.3V
C11
10pF
C12
10pF
50
SEG12/P1.4
2
SEG13/P1.5
3
SEG14/P1.6
4
SEG15/P1.7
5
SEG16/P2.0
6
SEG17/P2.1
7
SEG18/P2.2
8
SEG19/P2.3
9
SEG20/P2.4
10
SEG21/P2.5
11
12
SEG22/P2.6
SEG23/P2.7
13
SEG24/P3.0
14
SEG25/P3.1
15
SEG26/P3.2
16
SEG27/P3.3
17
SEG28/P3.4/INT4
SEG29/P3.5/INT5
SEG30/P3.6/INT6
SEG31/P3.7/INT7
SEG32
SEG33/COM3
SEG34/COM2
25
SEG35/COM1
26
COM0
27
VDDIO
28
GND
29
P4.0/TCK/INT8
P4.1/TDI/INT9
30
U2
MAXQ2000-RAX
U5
MAX8511
VDD
49
P6.5/T0/WKOUT1
48
CTSB
P6.4/T0B/WKOUT0
47
DSRB
2
1
IN
IN
IN
IN
IN IN IN IN IN
INRESET DTRB
R9
SHORT
IN
IN IN
IN
IN
IN
IN
IN
IN
IN
R16
OPEN
EP
INTDO RIB
R10
SHORT
IN
INTMS RTSB
R11
SHORT
IN
INTDI DCDB
R12
SHORT
IN
INTCK DSRB
R13
SHORT
IN
C25
OPEN
Y1
16MHz
P6.3/T2/OW_IN
46
P6.2/T2B/OW_OUT
45
U2_SDA
P6.1/T1/INT13
44
U2_SCL
MAXQ_K3
MAXQ_K2
TXD
TCK
TDI
MAXQ_K1
P6.0/T1B/INT12
43
GND
42
U2_MISO
P5.7/MISO
41
U2_SCLK
P5.6/SCLK
40
U2_MOSI
P5.5/MOSI
39
U2_CS
P5.4/SS
38
DTRB
P5.3/TX1/INT11
37
RTSB
P5.2/RX1/INT10
36
32OUT
35
P4.2/TMS
31
TMS
P4.3/TDO
32
TDO
RESET
33
TDI
32KIN
34
USBDM
USBDP
RSTOUT#
RESET#
8
7
5
1
1
2
2
3
3
2
1
4
6
65
3
5
4
CS
1
SK
4
1
3
2
5
4
7
2
C19
0.1µF
C18
4.7µF
C20
0.1µF
C28
0.1µF
C27
0.1µF
C24
0.1µF
4
XTIN
27
XTOUT
EECS
EESK
28
32
1
EEDATA
TEST
2
31
IN OUT
N.C.
GND
SHDN
N.C.
AGND
AVCC
U4
FT232BL
VCC
6
8
29
30
VCC1
3
VCC2
26
VCCIO
13
GND2
17
GND1
9
GND
5
C26
0.1µF
C16
1µF
C15
10µF
IN
TXD
TXD
25
IN RXD
RXD
24
IN RTSB
RTS#
23
IN
CTSB
CTSB#
22
IN DTRB
DTR#
21
IN DSRB
DSR#
20
IN
DCDB
DCD#
19
IN
RIB
RI#
18
TXDEN
16
TXLED#
12
RXLED#
11
PWRCTL
14
PWREN#
15
SLEEP#
10
U6
MAX8511
1
3
2
5
4
IN OUT
N.C.
GND
SHDN
C14
1µF
C13
10µF
+3.3V
IN IN
RXD
C17
0.1µF
IN
H1
TCK
12
INTDO
34
IN INTMS RESETB
56
78
INTDI
910
Y2
6MHz
+3.3V
+2.5V
________________________________________________________________ Maxim Integrated Products 12
Evaluates: MAX5723/MAX5724/
MAX5725A/MAX5725B
MAX5725A Evaluation Kit
Figure 7b. MAX5725A EV Kit Schematic (Sheet 2 of 2)