MCP23X17EV Microchip Technology, MCP23X17EV Datasheet - Page 12

• Manufacturer Part Number: MCP23X17EV
• Description: BOARD EVAL FOR MCP23X17
• Manufacturer: Microchip Technology

Specifications of MCP23X17EV

• Main Purpose: Interface, GPIO Expander
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP23017, MCP23S17
• Primary Attributes: (2) 16-Bit GPIO Expanders, I2C and SPI
• Secondary Attributes: 4 Momentary Switches, 12 LEDs
• Processor To Be Evaluated: MCP23x17
• Data Bus Width: 16 bit
• Interface Type: SPI
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP23017, MCP23S17
• Kit Application Type: Interface
• Application Sub Type: GPIO Expander
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

2.3
DS51592B-page 8
GETTING STARTED
The MCP23X17 Evaluation Board is a fully functional, assembled and tested board for
evaluation of the MCP23017 (I
purpose I/O expanders. The following describes the basic setup and operation (see
Figure 2-1):
1. Either connect a 9V power supply into the power jack (J2) or connect a 5V power
2. The green power LED will illuminate.
3. The device selector slide switch selects between the two devices. Slide the
4. On power-up, the LEDs will sequence in a slow scroll pattern.
5. Press a button and the LED sequencing will match the function defined by the
FIGURE 2-1:
supply to the V
switch towards the device of choice.
button. For example, pressing the “Blink” button will cause the LEDs to
continuously blink.
Power
LED
J2
MCP23017
VDD
GND
BLINK
Jumpers
DD
BOARD LAYOUT
and GND test points.
Reset
GPA/GPB Header
ALT
Serial and INT
Pins Header
LEDs
2
C interface) and MCP23S17 (SPI interface) general
PIC16F818
MUX
Selector Switch
SCROLL
MCP23S17
M
KR
© 2006 Microchip Technology Inc.
Jumpers: Shorted by
default on PCB
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