MCP23S17-E/SP I/O Expander 28-Pin
Consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B).
$3.95 – $15.55
This item: MCP23S17-E/SP I/O Expander 28-Pin
$3.95 – $15.55
$3.95 – $15.55
Description
Additional information
Applications
Support & Utility
Q & A
The MCP23X17-E/SP consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input port register can be inverted with the polarity inversion register.
Features
- Cascadable for up to 8 devices on one bus
- 16-bit input/output port expander with interrupt output
- 25mA sink/source capability per I/O
- Supports up to 10 MHz SPI clock speeds
- Polarity Inversion register to configure the polarity of the input port data
- Configurable interrupt output pins
- External reset input
- Low standby current of 1 uA (max)
MCP23S17-E/SP I/O Expander 28-Pin consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. You can invert the polarity of the Input port register with the polarity inversion register.
The way you hook the chip up to your breadboard will depend on the package you use (8-pin MCP23008 or 16-pin MCP23017). The pinouts are different between the two chips, so check the datasheet carefully first.
The MCP23017 is shown above with two LEDs connected, on GPA0 and GPA1.
- The yellow line is SDA
- The green line is SCL
- The three black lines on top are the address pins
- The brown pin is RESET which you must pull high for the regular operation
- Red is 3.3V
- Black is GND.
Package included: 1 or 5 pack
Check out our On Sale and Clearance Items
Development Resources: demo codes, schematics, datasheets, etc
Extra GPIO for your Raspberry Pi – Hardware setup
Hackaday serves up Fresh Hacks Every Day from around the Internet.
Instructables is a community for people who like to make things. Explore, share, and do your next project with us!
Where the world builds software
Raspberry Pi Foundation What would you like to make today?
Arduino‘s mission is to enable anyone to enhance their lives through accessible electronics and digital technologies.
Wikipedia is a free online encyclopedia created and edited by volunteers worldwide and hosted by the Wikimedia Foundation.
Notes:
1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitors.
| Weight | 0.008 kg |
|---|---|
| Dimensions | 4 × 1.5 × 1.5 cm |
| Pack Qty | 1 Pack, 5 Pack |
Product Applications
Current Product Support
| SKU | Product | Type | Download/View |
|---|---|---|---|
| MCP23S17-E/SP I/O Expander 28-Pin - MCP23017 | Datasheet | Download |
Q & A
There are no questions yet
Ask a question
Your question will be answered by a store representative or other customers.
Thank you for the question!
Your question has been received and will be answered soon. Please do not submit the same question again.
Error
An error occurred when saving your question. Please report it to the website administrator. Additional information:
Add an answer
Thank you for the answer!
Your answer has been received and will be published soon. Please do not submit the same answer again.
Error
An error occurred when saving your answer. Please report it to the website administrator. Additional information:
Related Products
Boxed Header 60 Pin Right Angle PCB Mount
$1.85 – $8.95
L7805CV Voltage regulator
$1.55 – $4.95
74HC595N Shift Register 8-Bit
$1.25 – $6.95
Radial Capacitor - 47UF (Low Profile)
$1.80 – $8.65
