MAX7312EVKIT+ Maxim Integrated, MAX7312EVKIT+ Datasheet - Page 5

• Manufacturer Part Number: MAX7312EVKIT+
• Description: Interface Development Tools Evaluation Kit for the MAX7312
• Manufacturer: Maxim Integrated
• Series: MAX7312r

Specifications of MAX7312EVKIT+

• Operating Supply Voltage: 2 V to 5.5 V

The I
jumper settings of JU0, JU1, and JU2. The I2C
Addresses drop-down list automatically detects the
MAX7312’s I
starts. The default I
shipped, is 0x40.
If the jumper settings of JU0, JU1, and JU2 change,
press the Reconnect button to automatically detect the
new I
The MAX7312 has 16 I/Os, configurable as push-pull
outputs or inputs. The MAX7312 EV kit board provides
a proven layout for evaluating the MAX7312. The EV kit
comes with a MAX7312ATG+ installed.
The combinations of shunt position of jumpers JU0,
JU1, and JU2 determine the I
MAX7312 EV kit. Refer to MAX7312 IC data sheet for
the appropriate setting.
Table 1. MAX7312 EV Kit Jumper Descriptions (JU0–JU5)
* Default position.
Detailed Description of Hardware
JUMPER
2
2
C slave address of the MAX7312 depends on the
C slave address of the MAX7312.
JU0
JU1
JU2
JU3
JU4
JU5
2
C slave address when the GUI software
_______________________________________________________________________________________
2
C slave address, when the EV kit is
POSITION
I
I2C Addresses Group Box
2
SHUNT
C Address Configuration
1-3*
1-3*
1-3*
1-2*
1-2*
1-2*
1-2
1-4
1-5
1-2
1-4
1-5
1-2
1-4
1-5
2-3
2-3
2-3
2
C slave address of the
Reconnect Button
Connects AD0 to VCC
Connects AD0 to GND
Connects AD0 to SDA signal
Connects AD0 to SCL signal
Connects AD1 to VCC
Connects AD1 to GND
Connects AD1 to SDA signal
Connects AD1 to SCL signal
Connects AD2 to VCC
Connects AD2 to GND
Connects AD2 to SDA signal
Connects AD2 to SCL signal
MAX7312 SCL signal connected to on-board microcontroller
Connects user-supplied SCL signal to the on-board SCL pad
MAX7312 SDA signal connected to on-board microcontroller
Connects user-supplied SDA signal to the on-board SDA pad
MAX7312 V+ is set to the on-board 3.3V supply powered from the USB port
Connects user-supplied external supply to the VCC pad
MAX7312 Evaluation Kit
There are eight red LEDs and eight green LEDs on the
EV kit to demonstrate the push-pull capability of the
I/Os. When an I/O is configured as an output and the
logic level is high, the corresponding red LED is on and
the green LED is off. If the logic level is low, the corre-
sponding green LED is on and the red LED is off.
Two pullup resistors and two pushbuttons are connected
to I/O8 and I/O9 of the MAX7312. Press pushbutton S2 to
drive I/O8 low and press pushbutton S1 to drive I/O9 low.
By default, the MAX7312 EV kit is powered by USB. To
use the user-supplied power supply, place a shunt on
pins 2-3 of JU5, cut the trace between pins 1-2 of JU5,
and connect a 2.5V to 3.3V power supply to the VDD pad.
To use the MAX7312 EV kit with a user-supplied I
interface, install shunts on pins 2-3 of JU3 and JU4.
Connect SDA, SCL, and GND lines from the user-
supplied I
on the MAX7312 EV kit. Place a shunt on pins 2-3 of
JU5, cut the trace between pins 1-2 of JU5, and con-
nect a 2V to 5.5V power supply to the VDD pad.
DESCRIPTION
2
C interface to the SDA, SCL, and GND pads
User-Supplied Power Supply
User-Supplied I
Output Evaluations of I/Os
Input Evaluations of I/Os
2
C Interface
2
C
5