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19-3838; Rev 2; 12/10
CMAXQUSB User’s Guide
General Description
The Maxim Command Module (CMAXQUSB) receives
commands from an IBM PC through the USB to create
an SPI? or SMBus?/I 2 C-compatible interface. Maxim
evaluation kits (EV kits) that make use of the
CMAXQUSB require custom software and can be
ordered together as an evaluation system (EV system).
Ordering information for EV systems is included in the
EV kit’s corresponding data sheet.
An EV system is an EV kit combined with an interface
board such as a CMAXQUSB and custom software.
Refer to the appropriate EV kit data sheet for quick start
and detailed operating instructions.
Features
o PC-Controlled I/O Platform
o USB Powered
o Provides 2.5V, 3.3V, or 5V to EV Kit
o SPI Bus: 8MHz Burst
o I 2 C/2-Wire Bus: Fast 400kHz/Standard 100kHz
o Optional 1.5k ? I 2 C Bus Pullup Resistors
Ordering Information
The use of the CMAXQUSB as a MAXQ2000 develop-
ment target is not supported. Rather, use the MAXQ2000
EV kit (available at www.maxim-ic.com/MAXQ2000-KIT )
for this purpose.
PART
CMAXQUSB+
PC INTERFACE
USB
OPERATING SYSTEMS
SUPPORTED
Windows 98SE/2000/XP
The CMAXQUSB has been tested on Windows ? 98
+ Denotes lead(Pb)-free and RoHS compliant.
Second Edition, Windows 2000, and Windows XP ? .
Component List
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
QTY
DESCRIPTION
22μF ±10%, 16V X5R ceramic
1μF, 6.3V (min) X7R ceramic
C1, C2, C3
C4
3
1
capacitors (1210)
TDK C3225X5R1C226K
4.7μF ±10%, 10V X7R ceramic
capacitor (0805)
C17 –C22
(on back of
board)
6
capacitors (0603)
TDK C1608X5R0J105K
Murata GRM188R60J105K
Taiyo Yuden JMK107BJ105MA
TDK C2012X5R1A475K
100V, 1A bridge rectifier
0.033μF ±10%, 6.3V (min) X7R
ceramic capacitor (0603)
D1
1
(D-70/DIP-6)
Diodes Inc. DF005M
C5
C6, C7
C8, C9
C10 –C16,
C23 –C32
(on back of
board)
1
2
2
17
TDK C1608X7R1E333K
Murata GRM188R71E333K
Taiyo Yuden EMK107BJ333KA
22pF ±5% C0G ceramic capacitors
(0603)
TDK C1608C0G1H220J
Murata GRM1885C1H220J
10pF ±5% C0G ceramic capacitors
(0603)
Murata GRM1885C1H100J
TDK C1608C0G1H100J
0.1μF ±10%, 10V (min) X7R ceramic
capacitors (0603)
TDK C1608X7R1E104K
J2, J3,
JU2 –JU5
LED1, LED2
LED3
LED4
P2
P3
P4
0
2
1
1
1
1
1
Not installed, 2-pin headers
Red LEDs (T1-3/4)
Panasonic LN21RPH
Yellow (amber) LED (T1-3/4)
Panasonic LN41YPH
Green LED (T1-3/4)
Panasonic LN31GCPH
USB type-B, right-angle PC-mount
receptacle
20-pin (2 x 10) right-angle male
header
40-pin (2 x 20) right-angle male
header
SPI is a trademark of Motorola, Inc.
SMBus is a trademark of Intel Corp.
P5 (JTAG)
1
10-pin (2 x 5) vertical header,
keyed pin 7
Windows and Windows XP are registered trademarks of
Microsoft Corp.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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