Datasheet

DESIGNATION QTY DESCRIPTION
C1 1
0.1FF Q10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C104KA01D
C2 1
1FF Q10%, 10V X7R ceramic
capacitor (0603)
TDK C1608X7R1A105K
J1 1 6-pin right-angle male header
JP1 1
10-pin (2 x 5) straight male
header
DESIGNATION QTY DESCRIPTION
R1–R4 4
150I Q5% resistors (0603)
R5 1
4.7kI Q5% resistor (0603)
R6 1
10kI Q5% resistor (0603)
U1 1
Digital thermometer and
thermostat (8 FMAX
M
)
Maxim MAX31723MUA+
— 3 Shorting jumpers
— 1 PCB: EPCB31723PM1
SUPPLIER PHONE WEBSITE
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
TDK Corp. 847-803-6100 www.component.tdk.com
PIN SIGNAL DESCRIPTION
1 SS
Chip enable. Must be asserted high for
communication to take place for either
the SPI or 3-wire interface.
2 MOSI
When SPI communication is selected,
this pin is the serial-data input for the
IC. When 3-wire communication is
selected, this pin carries bidirectional
data between the host and the IC.
3 MISO
When SPI communication is selected,
this pin is the serial-data output for
the IC. When 3-wire communication is
selected, this pin carries the IC TOUT
signal.
4 SCK
Serial clock. Used to synchronize data
movement on the serial interface for
either the SPI or 3-wire interface.
5 GND Ground
6 VCC Power supply
_________________________________________________________________ Maxim Integrated Products 2
MAX31723PMB1 Peripheral Module
Component List
Component Suppliers
Note: Indicate that you are using the MAX31723PMB1 when contacting these component suppliers
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
Detailed Description
SPI/3-Wire Interface
The MAX31723PMB1 peripheral module can plug directly
into a Pmod-compatible port (configured for SPI/3-wire)
through connector J1. For information on SPI and 3-wire
protocols, refer to the MAX31723 IC data sheet. The user
selects between SPI and 3-wire communication protocols
by setting the correct jumper configuration on JP2. See
Figure 1 for proper jumper settings.
Connector J1 provides connection of the module to the
Pmod host. The pin functions and pin assignments adhere
to the Pmod standard recommended by Digilent. Note that
when this module is operating in 3-wire mode, the host-
side interface must be configured as GPIO to allow for bit-
banged communication. 3-wire mode has the advantage
of freeing up an interface pin on the IC to allow for connec-
tion to the thermostat/alarm output. See Table 1.
The JP1 jumper block is used to configure the communi-
cation mode with the host board. The peripheral module
can communicate in either SPI or 3-wire mode. The cor-
rect shunt settings are shown in Table 2 and Figure 1.
Table 1. Connector J1
(SPI/3-Wire Communication)