MAX7313EVKIT+ Maxim Integrated, MAX7313EVKIT+ Datasheet - Page 11

• Manufacturer Part Number: MAX7313EVKIT+
• Description: Interface Development Tools Evaluation Kit for the MAX7313
• Manufacturer: Maxim Integrated
• Series: MAX7313r

Specifications of MAX7313EVKIT+

• Operating Supply Voltage: 2 V to 3.6 V

The MAX7313 EV kit demonstrates the MAX7313 16-
port GPIO with LED intensity control. The EV kit utilizes
the device’s 16 GPIO ports to drive four RGB LEDs and
four WLEDs. The device’s output-only pin (INT/O16) is
used as an interrupt output. In addition, the EV kit pro-
vides a relay interface (JU6) and the ability to evaluate
four of the 16 GPIO ports as inputs (P12–P15). The
LEDs can be controlled independently and their intensi-
ty varied using the appropriate MAX7313 8-bit PWM
control register. The device’s 2-phase LED blink-control
feature and 3-pin, 1-of-64 I
be evaluated. The device requires 3.3V for operation
and is powered by the EV kit circuit’s V+ rail.
The MAX7313 EV kit provides SCL and SDA PCB pads
for the I
connected directly to a user-provided I
has pullup resistors for the SCL and SDA signals.
Jumpers JU2, JU3, and JU4 are used to configure the
MAX7313 IC’s I
for the MAX7313 AD0, AD1, and AD2 pins. See Table 4
for additional information.
The MAX7313 EV kit provides jumper JU1 to select the
source for the V+ rail of the EV kit circuit. By default, the
V+ rail is set to 3.3V, which is supplied by the interface
circuit. Alternatively, the EV kit’s VDD pad can be used
to supply 3.3V to the circuit’s V+ rail. The interface circuit
is powered through a PC’s USB port. Table 3 lists the
various jumper options for powering the circuit’s V+ rail.
The MAX7313 EV kit provides jumpers JU2, JU3, and
JU4 for configuring the I
the MAX7313. The three address pins allow for 64 pos-
sible slave addresses. Refer to the Slave Address sec-
tion and Table 3 in the MAX7313 IC data sheet for all
possible address configurations. Table 4 lists the con-
figuration options for jumpers JU2, JU3, and JU4.
Table 3. JU1 Configuration
* Default position.
LOCATION
Detailed Description of Hardware
SHUNT
1-2*
2-3
MAX7313 I
2
C serial-interface signals. These pads can be
between pins 1-2 before
Connected to the VDD
2
C address. A PCB pad is also provided
Connected to 3.3V
MAX7313 V+ PIN
pad (cut the trace
shorting pins 2-3)
______________________________________________________________________________________
2
C Serial-Interface Address
EV Kit Circuit V+ Source
2
C serial-interface address of
2
C address feature can also
SUPPLY SOURCE
Interface circuit
External supply
2
EV KIT 3.3V
C system that
MAX7313 Evaluation Kit
The EV kit allows for evaluating the MAX7313 with the
on-board I
This is accomplished by configuring jumpers JU1, JU8,
JU9, and JU10, accordingly.
On-board interface:
1) Configure jumpers JU7 (INT), JU8 (SCL), and JU9
2) Configure jumper JU1 with a shunt on pins 1-2
User-supplied interface:
1) Configure jumpers JU7 (INT), JU8 (SCL), and
2) Cut the trace between pins 1-2 of jumper JU1
3) Connect the INT pad to an interrupt handling pin
4) Connect the SDA and SCL lines from the user-
5) Connect the I/O supply voltage of the user-
When evaluating the EV kit with a user-supplied inter-
face, ensure that the SCL, SDA, and INT lines are
pulled up to the I/O supply voltage through appropriate
pullup resistors. When using the on-board I
1.5kΩ pullup resistors (R31, R32, R33) are provided on
each of the SCL, SDA, and INT lines.
Table 4. JU2, JU3, and JU4 Configuration
* Default position.
(SDA) according to Table 5.
(see Table 3).
JU9 (SDA) according to Table 5.
and place a shunt on pins 2-3 of JU1.
on the user-supplied interface.
supplied interface to the SDA and SCL pads.
supplied interface across the VDD and GND pads.
SHUNT LOCATION
Not installed
2
C interface or a user-supplied I
1-3*
1-2
1-4
1-5
Connected to AD_ pad
MAX7313 AD_ PIN
Connected to GND
Connected to SCL
Connected to SDA
Connected to V+
I
2
C Interface
2
2
C interface.
C interface,
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