√
√ √ √
√ √ √
√
√
√ √ √
Ω
1-Wire Bus
Return
5 V
5V Operation Only
GND
1-W
POL
VDD
VPP
RXD
TXD
DS2480B
470 pF
See Application Note 148
for additional information.
62 Ohms
DS9503
SIN (RXD)
SOUT (TXD)
UART
or μC
Start Stop
1
0
L M
1-Wire Bus
Return
12 V
GND
1-W
POL
VDD
VPP
RXD
TXD
DS2480B
5V
Regulator
5 V
* only one DS950x ESD protection device with 5V
With EPROM Programming 5V Operation Only
GND
1-W
POL
VDD
VPP
RXD
TXD
DS2480B
*
470 pF
62 Ohms
Optional filter
DS9503
DS9503 DS9503
SIN (RXD)
SOUT (TXD)
UART
or μC
Start Stop
1
0
L M
1-Wire Bus
Return
DTR
Power Stealing
GND
1-W
POL
VPP
VDD
RXD
TXD
DS2480B 62 Ohms
Optional filter
RTS
See Text
22 μF0.1 μF
DS9503
470 pF
SIN
(
RXD
)
SOUT
(TXD)
UART
or μC
Start Stop
1
0
L M
1-Wire Bus
Return
DTR
Power Stealing
GND
1-W
POL
VPP
VDD
RXD
TXD
DS2480B
RTS
See Text
2.7K
4.7V
5V
Regulator
6.8K
1 μf
BSS110
S
D
+12VDC Programming
*
* only one DS950x ESD protection device with 5V
DS9503
DS9503
Return
SIN
(
RXD
)
SOUT
(TXD)
UART
or μC
Start Stop
1
0
L M
5 V
DC to DC
Converter
*
1-Wire Bus
GND
1-W
POL
VDD
VPP
RXD
TXD
DS2480B
* only one DS950x ESD protection device with 5V
5V
12 V
HCPL-2300
2.7K 5.1K
2.7K
5.1K
DS9503
DS9503
SIN
(RXD)
SOUT
(TXD)
UART
or μC
Start Stop
1
0
L M
1-Wire Bus
Return
DTR
Power Stealing
GND
1-W
POL
VPP
VDD
RXD
TXD
DS2480B
RTS
2.7K
HCPL-2300
5V
Regulator
1.5K
1 μf
HCPL-2202
5V +12VDC Programming
*
* only one DS950x ESD protection device with 5V
1.5K
DC/DC
Convert.
DS9503
DS9503
√√√
√√√
√
√√
√
√
√
√
μ
Ω
32
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical
Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
© 2010 Maxim Integrated The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc.
