Datasheet

Evaluates: SPI and SMBus/I
2
C-Compatible Parts
CMAXQUSB User’s Guide
8
U1P13
1
49
V
DD
U1P14
2
SEG11/P1.3
SEG7/P0.7/INT3
65
U1P07
SEG8/P1.0
66
U1P10
SEG9/P1.1
67
U1P11
SEG10/P1.2
68
U1P12
SEG6/P0.6/INT2
64
U1P06
SEG5/P0.5/INT1
63
U1P05
SEG4/P0.4/INT0
62
U1P04
SEG3/P0.3
61
U1P03
SEG2/P0.2
60
U1P02
SEG1/P0.1
59
U1P01
SEG0/P0.0
58
U1P00
VADJ
57
VDDIO VDDIO
VLCD2
56
VLCD1
55
SEG28/P3.4/INT4
18
SEG29/P3.5/INT5
19
SEG30/P3.6/INT6
20
SEG31/P3.7/INT7
21
SEG32
22
SEG33/COM3
23
SEG34/COM2
24
SEG35/COM1
25
COM0
26
VLCD
54
P7.1/RXO/INT15
53
U1P71
P7.0/TXO/INT14
52
U1P70
U1P64
U1P63
46
47
P6.4/TOB/WKOUT
U1P65
48
P6.5/TO/WKOUT
P6.3/T2/OW_IN
U1P62
U1P61
44
45
P6.2/T2B/OW_OUT
P6.1/T1/INT13
U1P60
43
P6.0/T1B/INT12
U1P57
U1P56
40
41
P5.7/MISO
P5.6/SCLK
U1P55
U1P54
38
39
P5.5/MOSI
P5.4/SS
U1P53
U1P52
Y3
32.768kHz
OPEN
36
34
35
37
P5.3/TX1/INT11
P5.2/RX1/INT10
32KIN
32KOUT
U1P40 U1P41 U1P42 U1P43
RESET
Y1
16MHz
51
50
HFXIN
VDDIO
HFXOUT
U1P15
3
SEG12/P1.4
U1P16
4
SEG13/P1.5
U1P17
5
SEG14/P1.6
U1P20
6
SEG15/P1.7
U1P21
7
SEG16/P2.0
U1P22
8
SEG17/P2.1
U1P23
9
SEG18/P2.2
U1P24
10
SEG19/P2.3
U1P25
11
SEG20/P2.4
U1P26
12
SEG21/P2.5
13
SEG22/P2.6
14
SEG23/P2.7
15
SEG24/P3.0
16
28
42
SEG25/P3.1
17
SEG26/P3.2
SEG27/P3.3
33
RESET
32
P4.3/TDO
31
P4.2/TMS
30
P4.1/TDI/INT9
29
P4.0/TCK/INT8
GND
GND
+2.5V
27
VDDIO
C9
10pF
C8
10pF
VDDIO
C24
0.1µF
+2.5
C23
0.1µF
U1
(EXPOSED PAD CONNECTS TO GND)
MAXQ2000-RAX
Figure 1a. CMAXQUSB Schematic (Sheet 1 of 4)