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DS9090K#
1-Wire Device Evaluation Kit Rev B4
Evaluates: 1-Wire EEPROM, EPROM,
and ROM Devices
S9090 Evaluation Kit
General Description
The DS9090 evaluation kit (EV kit) provides the hardware and
software necessary to evaluate and operate 1-WireM prod-
ucts in an easy-to-use PC environment. All 1-Wire EEPROM,
EPROM, and ROM devices are readable with the DS9090
EV kit. All 1-Wire devices with memory or PIO/switches can
be written with the DS9090 EV kit except 1-Wire EPROM
devices*. In this way, the engineer can evaluate 1-Wire
chips for potential design purposes or support end-product
development activity. EV kit operation requires a host PC.
Demonstration software consists of the OneWireViewer (a
Java™ program). For 32-bit and 64-bit WindowsM operating
systems, the OneWireViewer comes as part of the 1-Wire
drivers install package. For other operating systems, refer
to the online version of the OneWireViewer.
FeaturesProven PCB LayoutComplete Evaluation SystemConvenient On-Board Test PointsFully Assembled and TestedEasy Setup with USB AdapterFree Download of 1-Wire Drivers and
OneWireViewer Demonstration SoftwareCompatible with Other 1-Wire Devices Purchased
Separately (DS2411, DS2432, DS28E01, DS2502,
DS2505, DS2405, and DS2406)
Ordering Information
Component List Contents List
*EPROM devices, such as the DS2502 and DS2506, require a
different adapter (DS9097U-E25) to perform an EPROM write.
This adapter can be purchased separately and requires a
+12V power supply and a 25-pin to 9-pin serial port adapter
(refer to the adapter’s data sheet for details). 1-Wire EPROM
devices are available for sampling (up to a quantity of two).
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
#Denotes a RoHS-compliant device that may include lead(Pb)
that is exempt under the RoHS requirements.
PARTTYPE
DS9090K#EV kit
DESIGNATIONQTYDESCRIPTION1
TO92, PR35 header
Mill-Max 801-93-036-10-012, 3-pin
segment of 36-pin socket strip (or
RoHS equivalent)12-pin jumper post16-pin header15-pin header12-pin jumper post
JB1122-pin dual-row header post1RoHS-compliant surface-mount
resistor (1206)
RJ11
6-pin RJ11 right-angle AMP
520250-3 socket (or RoHS-
compliant equivalent) CONN, RJ11
JACK PCB-RA 6POS 6CON1
8-pin hot-swap socket
ENPLAS TESCO OTS-8(16)-1.27-03
TSSOP8 Socket (87-77008-005)1
4096-Bit Addressable 1-Wire
EEPROM with PIO
Maxim DS28E04S-100 chip1PCB: 1-Wire Device Evaluation
Board
QTYDESCRIPTION64-bit silicon serial number (3 TO92)
Maxim DS2401+
1-Wire, dual-addressable switch plus 1Kb EPROM
memory (6 TSOC)
Maxim DS2406P+1-Wire dual-channel addressable switch (6 TSOC)
Maxim DS2413P+20Kb 1-Wire EEPROM (3 TO92)
Maxim DS28EC20+1024-bit 1-Wire EEPROM (3 TO92)
Maxim DS2431+4Kb 1-Wire EEPROM (3 PR-35)
Maxim DS2433+1-Wire USB adapter with RJ11
Maxim DS9490R# 2-pin shunts for jumperingRJ11 male to RJ11 male cable, 7ft
4096-bit addressable 1-Wire EEPROM with PIO
(on EV kit)
Maxim DS28E04S-100+EV Kit PCB: 1-Wire Device Evaluation Board with
components
Evaluates: 1-Wire EEPROM, EPROM,
and ROM Devices
S9090 Evaluation Kit
Hardware Setup
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and under-
lined refers to items from the Windows operating system.
Required Equipment• IBM-compatible PC running Windows VistaM, Windows
XPM SP2, Windows 2003, or Windows 2008
• Spare USB port on the PC
Figure 1. DS9090 EV Kit Board Layout
Figure 2. Typical Setup
Evaluates: 1-Wire EEPROM, EPROM,
and ROM Devices
S9090 Evaluation Kit
Hardware Installation
The DS9090 EV kit comes standard with a USB-to-1-Wire
adapter (DS9490R). It is advisable to connect the USB
end of the adapter to a free USB port after the installation
of the software drivers is completed (see the Software
Installation section). Connect the evaluation board to the
PC with the supplied RJ11-to-RJ11 cable. One end of the
cable should be plugged into the evaluation board and
the other end into the DS9490R.
Insert the 1-Wire chip of interest into one of the evalua-
tion board sockets. See Figures 3 and 4 showing proper
chip insertion/orientation. Keep in mind that if writing to
DS250_ EPROM devices is desired, an alternate 1-Wire
adapter (DS9097U-E25) is necessary. It is available for
purchase separately from this kit. To program DS250_
EPROM devices with the DS9097U-E25, a +12V DC
power adapter is required (available at most electronic
supply stores). This is plugged into the power jack on the
DS9097U-E25 adapter. Refer to the DS9097U-E25 data
sheet for power-supply specifications, recommended
power-supply models, and the polarity requirements of
the 2.1mm power jack. Note that non-EPROM devices
cannot be inserted in the evaluation board when pro-
gramming EPROM devices. Caution: The +12V pro-
programming of EPROM devices damages non-EPROM
devices. Remove any non-EPROM device from the eval-
uation board before attempting an EPROM write opera-
tion. This includes removing the J2 “Enable” jumper to
isolate the DS28E04 from the +12V programming pulse.
Enable Pins and Header Rows
Enable pins and header rows are located on the board in
various locations. Two locations are specified as enable
pins and are jumperable. The first one (J5) enables the
TSOC socket so that the 1-Wire chip residing in the
socket can be communicated with through the 1-Wire
bus. The second one (J2) is similar. J2 jumpers the
DS28E04-100 evaluation circuit onto the 1-Wire bus.
Figure 5 shows the J2 enable jumper in the DS28E04-
100 evaluation circuit.
Header rows have also been placed on the DS9090
evaluation board, which allow other devices to be manu-
ally connected. Location J3 is one such header row. It is
located just above the TSOC socket and provides elec-
trical connections for the TSOC socket (pins 1–6). There
is also an adjacent ground row for jumpering any TSOC
pins to ground. Some ports such as the DS28EC20
(pin 3) or DS2413 (pins 1, 5) require additional pins to
be grounded through a jumper when in a TSOC pack-
Figure 3. TO92/PR35 Package InsertionFigure 4. TSOC Package Insertion
Evaluates: 1-Wire EEPROM, EPROM,
and ROM Devices
S9090 Evaluation Kit
socket. Pin 1 provides +5V coming directly off the USB
port through a current-limiting resistor. Pin 2 is the USB
ground, pin 3 is the 1-Wire IO pin, pin 4 is the board
ground, and pin 5 is the SUSO (“suspend”) pin for the
DS9490R (displays when the DS9490R is in a “sleep”
state).
DS28E04-100 Evaluation Circuit
A section of the evaluation board is dedicated to dem-
onstrating the DS28E04-100 1-Wire chip. Before experi-
menting with the DS28E04-100, the circuit’s enable pins
(J2) must be jumpered (see Figure 5). This jumpers the
DS28E04-100 onto the 1-Wire bus, allowing the 1-Wire
software to communicate with the device. Note the row of
header pins at the bottom of the circuit, several of which
can be jumpered. The pins labeled A0–A6 correspond to
the seven address inputs that can be jumpered to modify
a portion of the 1-Wire network address of the device.
Other pins available are VCC, POL, and the PIO pins (P0
and P1). VCC can be jumpered in from the board when
needed. The state of the POL pin determines how the
PIO channels power up. For example, if the chip has to
power up with all PIO channels off, the POL pin must be
connected to a logic 1. The PIO pins (P0 and P1) are also
brought out to the header pins.
Software Installation
Install the latest 1-Wire drivers package available at
www.ibutton.com/software/tmex/. These drivers
require a 32-bit or 64-bit Windows platform, specifically
Windows XP (SP2), Vista, or Windows 2008 or 2003.
Remove the DS9490R from the USB port before start-
ing the installation. Only after the installation program
is completed should the DS9490R be inserted. Once
inserted, wait for the operating system to complete the
plug-and-play process. For Windows 2003 and XP (SP2),
the OS prompts about installing the DS9490R device
with the Add Hardware wizard before continuing. Newer
operating systems complete the plug-and-play process
without the wizard. During the installation process, the
drivers are set up to point to the USB adapter as the
default port type and port 1 (USB1) as the default port
number. The default port type and number settings can
be changed at any time after installation by running the
Default 1-Wire Net program that is installed with the
drivers. To do so, simply click on Start → Programs →
1-Wire Drivers xXX (xXX stands for the OS architecture,
either x86 or x64). Then click on the icon labeled Default
1-Wire Net. If problems are encountered during instal-
lation, refer to White Paper 6: 1-Wire Drivers Installation
Guide for Windows, specifically the “Appendix A: 1-Wire
USB Adapter (DS9490) Installation Help” section.
Next, run the OneWireViewer Java demo. Click on Start → Programs → 1-Wire Drivers xXX. Then click on the
OneWireViewer icon. This runs the OneWireViewer. If
the OneWireViewer cannot find a suitable Java Runtime
Environment (JRE), it prompts the user with a mes-
sage to download the latest one from either www.java.
com or sun.java.net. Once the OneWireViewer is run-
ning, the 64-bit ROM ID values (i.e., the 1-Wire network
addresses) of all 1-Wire chips inserted into the evalua-
tion board are displayed. Clicking on the chip’s address
selects the chip and starts communicating with it. The
OneWireViewer then makes other tabs available that
contain functionality to exercise the chip (i.e., read and
write data, files, exercise PIO pins, etc.).
It is also possible to run the OneWireViewer on OS
platforms other than Windows, but it could require spe-
cial setup and/or additional software installation. Refer
to the OneWireViewer website for more information at
www.maximintegrated.com/onewireviewer.Figure 5. DS28E04-100 Evaluation Circuit
Evaluates: 1-Wire EEPROM, EPROM,
and ROM Devices
S9090 Evaluation Kit
DS9090 EV Kit Operation
Select the 1-Wire device to evaluate and insert it into
the appropriate socket, ensuring it is properly oriented.
Jumper the appropriate enable pins for the TSOC socket
(J5) and/or the DS28E04-100 evaluation circuit (J2). See
the Hardware Installation section for help. Finally, con-
nect the evaluation board to the PC.
Run the OneWireViewer. If any difficulty is encountered,
see the Troubleshooting Guide section. Another help-
ful resource is Application Note 3358: OneWireViewer
User’s Guide.
The OneWireViewer presents a Device List window
located on the left-hand side of the main screen. It
displays a list of the different 1-Wire devices found con-
nected to the DS9490R. The 1-Wire device type inserted
into the socket or header of the evaluation board should
be shown in the Device List window, along with the
64-bit ROM ID lasered into the device. Figure 6 shows
the DS28E04-100 in the Device List window, along with
its 64-bit ROM ID value of 4A000000163A7A1C. From
the Device List window select the part by clicking on it.
Once the 1-Wire device has been selected, the right-
hand side of the main OneWireViewer screen is popu-
lated with different tabs. There are at least three tabs for
each device contained in the DS9090 EV kit: Description,
Memory, and File. A fourth tab labeled Switch is also
available on those parts containing switches. Clicking on
the Memory tab brings up the Memory Viewer as shown
in Figure 6. The user has the choice of reading/writing
any of the memory banks listed in the Banks section of
the Memory Viewer. When done editing the raw page
(entering in a hexadecimal number for each byte), click
the Commit Changes button. Clicking Refresh rereads
the contents of the 1-Wire memory. The File tab allows
writing files to the device’s memory. To do this, the user
needs to first Format the Device, then Create/Read/
Write/Delete files and directories. The Switch tab allows
reading and toggling of the PIO pin states and clearing
of activity latches. Refer to Application Note 3358 for
further instructions on how to use the many features of
the OneWireViewer.
Figure 6. OneWireViewer Screen Example
Evaluates: 1-Wire EEPROM, EPROM,
and ROM Devices
S9090 Evaluation Kit
Evaluation Board Layout
TOP LAYER (SIDE A, COMPONENT SIDE)
COMPOSITE GRAPHIC
BOTTOM LAYER (SIDE B)
