DS9481R-3C7 [MAXIM]
DS9481R USB-to-1-Wire/iButton Adapter Evaluates: 1-Wire Slave and iButton Devices;
| 型号： | DS9481R-3C7 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | DS9481R USB-to-1-Wire/iButton Adapter Evaluates: 1-Wire Slave and iButton Devices |
| 文件： | 总9页 (文件大小：1236K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
General Description
The DS9481R is a USB-to-1-Wire adapter for easy PC
connectivity to 1-Wire devices. The adapter provides an
RJ11 connector with the signals to communicate with all
1-Wire and iButton devices that support a 3.3V data I/O
Features
®
®
M
S Driver Support for Windows 7, Windows Vista ,
®
and Windows XP Operating Systems
S Enumerates as a Virtual PC COM Port by Use of
M
the Prolific PL-2303HXD USB-to-UART Bridge IC
level. Additionally, the adapter provides the support and
signaling to program 1-Wire/iButton EEPROM and one-
time programmable (OTP)/EPROM devices. To provide
a total hardware solution, the DS9481R can readily be
used with the DS9120 socket adapter to create a 1-Wire
PC programmer for 1-Wire slave devices (contact factory
for more information). The equivalent slave hardware
solution for the iButton is the DS1402D-DR8.
S Emulates the DS2480B 1-Wire Line Driving
Functionality
S 1-Wire OTP/EPROM Programming Provided
Without the Need of an External Power Supply
(12V on OW, 7V on PULSE)
S 3.3V Read/Write Operation to 1-Wire/iButton
Devices
S RJ11 Interface for Standard Connectivity
Accessories such as the DS9120 Socket Adapter
Adapter Contents
S Supports Standard and Overdrive 1-Wire
Communication
QTY
DESCRIPTION
S Provides Strong Pullup to 3.3V
USB-to-1-Wire adapter
Maxim DS9481R-3C7+
1
S Fully Compliant with USB 2.0 Specification
S Windows XP Certified Logo Drivers
USB Type A-to-USB Mini-Type B cable
Qualtek Electronics Corp. 3021003-03
1
Ordering Information
PART
TYPE
DS9481R-3C7+
Adapter
+Denotes lead(Pb)-free and RoHS compliant.
DS9481R USB-to-1-Wire/iButton Adapter
1-Wire and iButton are registered trademarks of Maxim
Integrated Products, Inc.
Windows, Windows Vista, 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.maximintegrated.com.
19-5608; Rev 0; 10/10
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
4.7FF, 16V Y5V ceramic
capacitors (0805)
TDK Corp. C2012Y5V1C475Z
220W, 2000mA ferrite chips (0805)
Murata BLM21PG221SN1D
FB1, FB2
2
1
0
2
C1, C6, C21
C2, C3
3
2
2
3
7
1
0
1
6-position, right-angle, PCB-
mounted jack
Tyco 5520425-3
J1
2.2FF, 16V Y5V ceramic
capacitors (0805)
Murata GRM21BF51C225ZA01L
Do not populate,
JTAG connector
J2
0.22FF Q10%, 16V X7R ceramic
capacitors (0603)
TDK Corp. C1608X7R1C224K
C4, C7
130mA, 50V p-channel MOSFETs
(SOT23-3)
Fairchild Semiconductor BSS84
Q1, Q3
10nF 5%, 16V X7R
ceramic capacitors (0603)
AVX 06035C103JAT2A
C5, C15, C22
115mA, 60V n-channel MOSFETs
(SOT23)
Diodes, Inc. 2N7002-7-F
Q2, Q4, Q5, Q7
4
0.1FF, 16V X7R ceramic
capacitors (0603)
KEMET C0603C104K4RACTU
C8, C11-C14,
C20, C23
3.9A, 20V p-channel MOSFET
(SOT23)
NXP PMV65XP,215
Q6
1
0
3
10FF, 10V Y5V ceramic
capacitor (0805)
TDK Corp. C2012Y5V1C106Z
C10
C16
C17
Do not populate,
resistors
R1, R29
R2, R3, R5
27I Q1%, 1/10W SMD resistors
(0603)
Yageo RC0603FR-0727RL
Do not populate,
470pF ceramic capacitor (0603)
1FF, 10V X7R ceramic
capacitor (0603)
Taiyo Yuden LMK107B7105KA-T
1.5kI Q1%, 1/10W SMD
resistors (0603)
Panasonic ECG ERJ-3EKF1501V
R4, R16, R21
R6, R24
3
2
3
5
1
1
10pF, 16V NP0 ceramic
capacitor (0603)
TDK Corp. C1608C0G1H100D
10kI Q1%, 1/10W SMD
resistors (0603)
Yageo RC0603FR-0710KL
C19
1
0
C9, C24, C25
Do not populate, capacitors
1kI Q1%, 1/10W SMD
resistors (0603)
Yageo RC0603FR-071KL
R7, R14, R26
USB Mini-AB connector,
right-angle, SMD, 5-position
JAE Electronics
CN1
1
100kI Q1%, 1/10W SMD
resistors (0603)
Yageo RC0603FR-07100KL
R8, R13, R17,
R20, R27, R30
DX3R005HN2E700
30V, 200mA Schottky diode (SOT23)
Diodes Inc./Zetex BAT54TA
D1
D2
D3
D4
1
1
1
1
750I Q5%, 1/10W SMD
resistor (0603)
Yageo RC0603FR-07750RL
R9
15V, 350mA zener diode (SOT23)
Diodes Inc. MMBZ5245B-7-F
Orange LED (TSS type) (0603)
Panasonic/SSG LNJ812R83RA
0I Q1%, 1/10W SMD
resistor (0603)
Panasonic ECG ERJ-3GEY0R00V
R10
Dual CC Schottky diode (SOT23)
Diodes Inc./Zetex BAT54CTA
2
Maxim Integrated
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
Component List (continued)
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
SW1
0
Do not populate, switch
33I Q1%, 0.1W SMD
resistor (0603)
Rohm MCR03EZPFX33R0
R11
1
3
Low-dropout, 300mA linear
regulator (5 SOT23)
Maxim MAX8887EZK33+T
(Top Mark: ADPZ)
U1
1
4.99I Q1%, 1/10W SMD
resistors (0603)
R12, R15, R22
Yageo RC0603FR-074R99L
12V, 30mA Flash memory
programming supply (8 SO)
Maxim MAX662ACSA+
U2
U3
U4
U5
U6
U7
1
1
0
1
1
1
2.2kI Q5%, 1/10W SMD
resistor (0603)
Stackpole Electronics RMCF
1/16 2.2K 1% R
R18
R23
R25
R28
R31
1
1
1
1
1
M
TinyLogic UHS inverter
(5 SOT23)
Fairchild NC7SZ04M5X
51kI Q0.1%, 1/10W SMD
resistor (0603)
Panasonic ECG ERA-3AEB513V
Do not populate,
Silicon oscillator (3 SC70)
Maxim MAX7381AXR126-T
11kI Q0.1%, 1/10W SMD
resistor (0603)
Vishay/Dale
USB-to-serial bridge controller
(28 SSOP)
Prolific PL-2303HXD SSOP
TNPW060311K0BEEA
16-bit microcontroller with infrared
module (32 TQFN-EP*)
Maxim MAXQ610A-9410+
10I Q1%, 1/10W SMD
resistor (0603)
Yageo RC0603FR-0710RL
2-channel ESD protector (6 FDFN)
Maxim MAX13204EALT+
(Top Mark: BV)
32.4kI Q1%, 1/10W SMD
resistor (0603)
Vishay/Dale
High-voltage, low-power linear
regulators (5 SOT23)
Maxim MAX1616EUK+
(Top Mark: ABZD)
TNPW060332K4BEEA
U8
U9
1
30.1kI Q0.1%, 1/10W SMD
resistor (0603)
Panasonic ECG ERJ-3EKF3012V
R32
R33
RT1
1
1
1
1.8V comparator (5 SOT23)
STMicroelectronics TS3021ILT
1
1
50kI Q1%, 1/10W SMD
resistor (0603)
Panasonic ECG ERJ-3EKF4992V
—
PCB: DS9481R REV A3
*EP = Exposed pad.
TinyLogic is a registered trademark of Fairchild Semiconductor.
0.12A, 30V PTC resettable fuse
(1206)
Bourns MF-NSMF012-2
Maxim Integrated
3
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
2) Do the following to install the 1-Wire drivers:
Quick Start
a) Go to the 1-Wire Drivers—Getting Started
Recommended Equipment
webpage at www.maximintegrated.com/1-
•ꢀ Maxim DS9481R (included in adapter)
wiredrivers.
•ꢀ USB type-A to USB Mini type-B cable (included in
b) Click on the Click to go to Download Page button.
adapter)
c) From the Choose Operating System drop-down
•ꢀ RJ11 cable assembly (not included)
list, select your OS.
•ꢀ PC with a Windows 7, Windows Vista, or Windows XP
d) From the Select File drop-down list, select 32-bit
OS and a spare USB port
or 64-bit 1-Wire drivers for the architecture being
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the adapter software. Text in bold and
underlined refers to items from the Windows operating
system.
used by your OS.
e) Click the Download button.
f) When prompted by the question Do you want to
run or save this file?, select Run.
g) When you get a security warning that says Do
you want to run the software?, select Run.
Procedure
1) Do the following to install the PL-2303HXD Prolific driver:
h) Read and check the box if you accept the
a) Download either the driver file called PL2303_
Prolific_DriverInstaller_v130.ZIP or the latest
version from http://www.prolific.com.tw/eng/
downloads.asp?ID=31.
license agreement and click Install.
i) Click the Finish button to exit the Setup Wizard.
3) The DS9481R USB-to-1-Wire adapter uses both the
Prolific PL-2303HXD and the Maxim MAXQ610 to
emulate a virtual COM-to-1-Wire port on any PC. Find
the enumeration of the virtual COM port by inserting
the DS9481R into a spare USB port on the com-
puter. Determine the COM port by looking in Control
Panel→System→Hardware→Device Manager and
b) Open and Run either the file called PL2303_
Prolific_DriverInstaller_v110.EXE or the latest
version.
c) Follow the directions of the Install Wizard until
Finish is reached for the PL-2303 USB-to-serial
driver installation. Close by clicking the Finish
button.
Figure 1. DS9481R USB-to-1-Wire/iButton Adapter and Cable
4
Maxim Integrated
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
expand Ports (COM & LPT). The port is COM2 in the
by contacting Maxim online technical support at
example shown in Figure 2.
https://support.maximintegrated.com/1-Wire.
You have now completed the installation of the DS9481R
adapter. Obtain the adapter software and directions
for installation for your 1-Wire/iButton slave device
Detailed Description of Connectors
RJ11 Pinout
Table 1 and Figure 3 show the RJ11 pinout mounted on
the DS9481R PCB at J1. The RJ11 pin 1 can supply 3.3V
and can be used for auxiliary board power. The GND is
the 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 VCC power supply for OTP 1-Wire slave
parts. The PULSE signal is typically 3.3V, but also can
provide the needed programming pulse for OTP parts.
The GP signal is reserved for future general-purpose
usage and is functionally not used by the DS9481R.
Mini-USB Pinout
The 5-position Mini-USB type AB connector is mounted
at CN1 of the DS9481R PCB, as shown in Table 2.
Figure 2. DS9481R COM Port
Hardware/Firmware Capabilities
The DS9481R uses both the Prolific PL-2303HXD and
the Maxim MAXQ610. The PL-2303HXD is fully compli-
ant with USB 2.0 specification for Windows 7, Windows
Vista, and Windows XP OS and provides a bridge for the
USB-to-UART connection. The MAXQ610 is loaded with
firmware that emulates the functionality of the DS2480B
serial-to-1-Wire line driver at a lower 3.3V operation
voltage. The MAXQ610 functions as a UART-to-1-Wire
bridge and can serve custom application needs with
firmware programmability.
6
5
4
3
2
1
LOOKING INTO FEMALE RJ11 CONNECTOR
Figure 3. 1-Wire RJ11 Port
Table 2. Mini-USB Type AB USB Pinout
Table 1. 1-Wire RJ11 Pinout
CONNECTOR PIN
SIGNAL NAME
CONNECTOR PIN
SIGNAL NAME
1
2
5.0V
1
2
3
4
5
6
3.3V
GND
DMCN
3
DPCN
OW (DATA)
OWGND
PULSE
GP
4
NC
5
GND
6-9
GND_EARTH
Maxim Integrated
5
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
3
2
3
2
3
2
E P
P E
V + -
V
5
2
1
2
3
2
D
G N
7
C
V C
5
9
8
6
7
9
8
6
7
Figure 4. DS9481R Adapter Board Schematic
6
Maxim Integrated
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
Figure 5. DS9481R Adapter Enclosure Dimensions
Maxim Integrated
7
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
Figure 6. DS9481R Adapter Board—Composite Layout
8
Maxim Integrated
DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
10/10
Initial release
—
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
9
©
2010 Maxim Integrated Products, Inc.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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