MCP23S18-E/MJ
- Mfr.Part #
- MCP23S18-E/MJ
- Manufacturer
- Microchip Technology
- Package / Case
- 24-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC I/O EXPANDER SPI 16B 24QFN
- Stock
- 12,542
- In Stock :
- 12,542
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Microchip Technology
- Product Category :
- I/O Expanders
- Lead Free :
- Lead Free
- Brand :
- Microchip Technology / Atmel
- Number of Bits :
- 16
- Temperature Grade :
- Automotive
- Chip Configuration :
- 16bit
- Power Supplies :
- 2/5V
- Type :
- I/O Expander
- HTS Code :
- 8542.39.00.01
- Package Type :
- QFN
- Package / Case :
- 24-VFQFN Exposed Pad
- Logic Type :
- I/O Expander
- Number of Ports :
- 2
- Logic Family :
- MPC23
- Supply Voltage :
- 5V
- Product Type :
- I/O Expanders
- Voltage - Supply :
- 1.8V~5.5V
- Interrupt Output :
- yes
- Manufacturer :
- Microchip
- Supplier Package :
- QFN EP
- Current - Output Source/Sink :
- 25mA
- Operating Temperature :
- -40°C~125°C
- Base Part Number :
- MCP23S18
- Product :
- I/O Expanders
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Qualification Status :
- Not Qualified
- Supplier Device Package :
- 24-QFN (4x4)
- Time@Peak Reflow Temperature-Max (s) :
- 40
- JESD-609 Code :
- e3
- Pin Count :
- 24
- Interface :
- SPI
- Product Status :
- Active
- Length :
- 4mm
- Packaging :
- Tray
- Input Voltage :
- 1.8 V to 5.5 V
- Number of I/Os :
- 16 I/O
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Nominal Supply Current :
- 1mA
- Package Shape :
- Square
- Series :
- --
- Height Seated (Max) :
- 0.9mm
- Number of Channels :
- 1
- RoHS :
- Details
- Clock Frequency :
- 10MHz
- Screening Level :
- Extended
- ECCN Code :
- EAR99
- Number of Terminals :
- 24
- Peak Reflow Temperature (Cel) :
- 260
- Mounting Style :
- SMD/SMT
- Terminal Pitch :
- 0.5mm
- Reach Compliance Code :
- Compliant
- Output Type :
- Open Drain
- Published :
- 2008
- RoHS Status :
- ROHS3 Compliant
- Output Voltage :
- 0.6 V to 4.8 V
- Terminal Form :
- NO LEAD
- Output Current :
- 400mA
- Factory Lead Time :
- 8 Weeks
- Max Power Dissipation :
- 700mW
- Package :
- Tube
- Surface Mount :
- yes
- Number of I/O :
- 16
- Mount :
- Surface Mount
- Maximum Operating Temperature :
- + 125 C
- ESD Protection :
- Without ESD
- Mounting Type :
- Surface Mount
- Mounting :
- Surface Mount
- Number of I/O Lines :
- 16
- Number of Terminations :
- 24
- Width :
- 4mm
- MSL :
- MSL 1 - Unlimited
- uPs/uCs/Peripheral ICs Type :
- PARALLEL IO PORT, GENERAL PURPOSE
- Base Product Number :
- MCP23S18
- Operating Supply Voltage :
- 1.8 V to 5.5 V
- JESD-30 Code :
- S-PQCC-N24
- Interface Type :
- Serial, SPI
- Number of Pins :
- 24
- Minimum Operating Temperature :
- - 40 C
- Features :
- --
- Product Category :
- Interface - I/O Expanders
- Seated Height-Max :
- 0.9 mm
- Terminal Position :
- QUAD
- Category :
- I/O Expander
- Weight :
- 928.191737mg
- REACH SVHC :
- No SVHC
- Datasheets
- MCP23S18-E/MJ
MCP23S18-E/MJ Documents

I/O Expanders Microchip Technology MCP23S18-E/MJ Overview
The MCP23S18-E/MJ by Microchip Technology is a high-performance IC I/O expander that operates over an SPI interface, designed to enhance the functionality of microcontroller systems. This component is housed in a compact 24QFN package, making it ideal for space-constrained applications. The MCP23S18-E/MJ enables interface expansion, allowing additional inputs and outputs to be added to a microcontroller or microprocessor system. This capability is crucial for complex systems requiring more I/O ports than those available on the core device, enhancing both flexibility and scalability. The integration of this I/O expander into your system can simplify design and reduce overall component count, leading to cost efficiency and improved reliability.
MCP23S18-E/MJ Features
This I/O expander supports 16-bit, bidirectional data flow, enhancing the control and interfacing capabilities of connected devices. With its SPI interface, it ensures high-speed communication and easy integration with existing microcontroller architectures. The MCP23S18-E/MJ also offers enhanced features such as interrupt output for input change notification, which is invaluable in real-time monitoring applications. Its wide operating voltage range and low power consumption make it suitable for a diverse range of industrial and consumer applications.
MCP23S18-E/MJ Applications
- Home Automation Systems: Integrates seamlessly to control lighting, security systems, and other home automation peripherals, expanding the number of manageable devices.
- Industrial Automation: Used in factory automation for managing sensors, actuators, and other control elements, improving operational efficiency and data management.
- Robotics: Provides additional I/O options for controlling robotic mechanisms and sensors, crucial for complex tasks and enhanced functionality.
- Mobile Devices: Helps in expanding the interface capabilities of mobile devices for additional buttons or indicators without increasing the processor load.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















