Socket Boards for Evaluating 1-Wire Devices
Evaluates: DS9120
General Description
The DS9120 family of socket boards are RJ11-to-socket
boards that provide the hardware connectivity necessary
to evaluate and operate 1-Wire
M
products in an easy-to-
use PC environment. Additionally, the socket boards can
be readily used with the DS9481R USB-to1-Wire adapter
to create a 1-Wire PC programmer for 1-Wire EEPROM
and one-time programmable (OTP)/EPROM devices.
Features
S
Fully Compliant with DS9481R USB-to-1-Wire
Adapter
S
Convenient On-Board Test Points
S
Jumper Disconnect/Connect Functionality
S
Meets RJ11 1-Wire Interface Standard
S
Include Connections for Various OTP EPROM
Programming
Socket Board Contents List
(Included with Each Order)
QTY
1
1
1
DESCRIPTION
1-Wire socket board
Maxim DS9120*
RJ11 cable assembly
I.O. Interconnect
Instruction sheet
Socket Board
(Shown with DS9120P)
*See
the
Ordering Information
table for package type/part
number options.
Support Resources
1) DS9120 Family of 1-Wire Socket Boards:
www.maximintegrated.com/DS9120
2) DS9481R USB-to-1-Wire/iButton Adapter:
www.maximintegrated.com/DS9481R
3) 1-Wire Technical Support:
https://support.maximintegrated.com/1-Wire
Ordering Information
appears at end of data sheet.
1-Wire and iButton are registered trademarks of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5895; Rev 0; 6/11
Socket Boards for Evaluating 1-Wire Devices
Evaluates: DS9120
Selector Guide
MAXIM ORDERING
PART NUMBER
SOCKET MANUFACTURER/PART
NUMBER
DESCRIPTION
DS9120+
Mill-Max 801-93-036-10-012000
TO-92 Socket with RJ11 Connector
DS9120P+
QSYQ TSOC-6-2
Dual TSOC and TO-92 Sockets with RJ11 Connector
DS9120Q+
Plastronics 06QN10T23030-H
TDFN and TO-92 Sockets with RJ11 Connector
Maxim Integrated
2
Socket Boards for Evaluating 1-Wire Devices
Evaluates: DS9120
Detailed Description of Hardware
The DS9120 family of 1-Wire socket boards are 1-Wire
accessories that support 1-Wire EEPROM, EPROM, and
ROM devices for different packages. See the
Ordering
Information
table to determine which socket board is
available for each package type. All socket boards
include the socket and RJ11 cable assembly (see the
Socket Board Contents List (Included with Each Order))
table for the complete list).
The DS9120P socket board for the TSOC package
requires jumpers for communication. The only reason for
these jumpers is for debugging, or to break out the RJ11
signals. Set the jumpers as shown in
Figure 1
for parasiti-
cally powered devices, and set the jumpers as shown in
Figure 2
for nonparasitically powered devices.
Additionally, note that when evaluating a DS2413P
device, jumpers J1 and J4 are to be populated. For all
other 1-Wire slave devices, do not populate J1 or J4 with
a jumper.
3.3V
RAW-GND
1-WIRE
1-WIRE
1W-GND
PULSE
PULSE
RJ11-6
3.3V
RAW-GND
1-W-A
1-W-B
1W-GND
PULSE-A
PULSE-B
1-Wire Socket Boards
The DS9120Q socket board should only have J3 jumper
populated when evaluating a DS2413Q device. For all
other 1-Wire slave devices, do not populate J3 with a
jumper.
DS9120Q Jumper Settings
DS9120P Jumper Settings
Table 1
shows the RJ11 pinout at RJ1 mounted on each
DS9120 socket board. This also matches the RJ11 pinout
for the DS9481R. RJ11 pin 1 can supply 3.3V and can
be used for auxiliary board power. GND is ground of
the 3.3V supply. The signal OW (DATA) stands for the
1-Wire data bus. The ground return for OW (DATA) is the
signal OWGND. The PULSE signal is to be used as the
V
CC
power supply for OTP EPROM memory devices. The
PULSE signal is typically 3.3V, but can also provide the
needed programming pulse for 7V OTP EPROM memory
devices. The GP signal is reserved for future general-pur-
pose use and is functionally not used by the DS9481R.
RJ11 Pinout
Table 1. 1-Wire RJ11 Pinout
CONNECTOR
PIN
1
2
3
4
5
6
SIGNAL
NAME
3.3V
GND
OW (DATA)
OWGND
PULSE
GP
PIN ROUTED ON PCB
DS9120P, DS9120Q
DS9120P
DS9120P, DS9120Q,
DS9120
DS9120P, DS9120Q,
DS9120
DS9120P
DS9120P
Figure 1. Jumper Settings for Parasitic Power
3.3V
RAW-GND
1-WIRE
1-WIRE
1W-GND
PULSE
PULSE
RJ11-6
3.3V
RAW-GND
1-W-A
1-W-B
1W-GND
PULSE-A
PULSE-B
Figure 2. Jumper Settings for V
CC
Power and OTP
Programming for DS28E10
Maxim Integrated
3
Socket Boards for Evaluating 1-Wire Devices
Evaluates: DS9120
DS9120 Family of Socket Board Schematics and Layout
Figure 3. DS9120+ Socket Board Schematic
Figure 4. DS9120+ Socket Board Composite Layout
Maxim Integrated
4
Socket Boards for Evaluating 1-Wire Devices
Evaluates: DS9120
DS9120 Family of Socket Board Schematics and Layout
(continued)
Figure 5. DS9120P+ Socket Board Schematic
Figure 6. DS9120P+ Socket Board Composite Layout
Maxim Integrated
5
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