MCP23S08T-E/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
MCP23S08T-E/ML is an 8-bit SPI I/O expander from Microchip with 10 MHz clock, 8 GPIO lines, and interrupt support, in a compact QFN-20 package. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP23S08T-E/ML Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit SPI I/O expander with up to 10 MHz clock frequency for fast GPIO expansion
- Single port with 8 individually configurable input/output lines and interrupt-on-change capability
- Compact QFN-20 (4x4 mm) package suitable for space-constrained PCB designs
Applications
The MCP23S08T-E/ML is ideal for embedded systems requiring additional GPIO via SPI, such as industrial control panels, IoT sensor hubs, and consumer electronics. It suits designs where the host MCU has limited I/O pins but needs to control multiple peripherals or read multiple digital inputs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | QFN-20 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Clock Frequency-Max | 10MHz |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e3 |
| Number of Bits | 8 |
| Number of I/O Lines | 8 |
| Number of Ports | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 1mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | PARALLEL IO PORT, GENERAL PURPOSE |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP23S08T-E/ML:
Frequently Asked Questions
What is the maximum SPI clock frequency supported by the MCP23S08T-E/ML?
The MCP23S08T-E/ML supports an SPI clock frequency of up to 10 MHz, enabling fast communication with host microcontrollers. This allows efficient GPIO expansion in systems requiring rapid I/O updates across 8 individually configurable pins.
How many GPIO lines does the MCP23S08T-E/ML provide, and can they trigger interrupts?
The MCP23S08T-E/ML provides 8 GPIO lines organized in a single 8-bit port. Each pin can be configured as input or output, and the device supports interrupt-on-change functionality, making it suitable for event-driven embedded systems with minimal polling overhead.
For a compact motor-driver board, how does the QFN-20 package of the MCP23S08T-E/ML help with PCB layout?
The QFN-20 package measures approximately 4x4 mm with a 0.65 mm pitch, allowing dense placement on compact PCBs. Its exposed thermal pad also helps with heat dissipation at 3.3 V or 5 V supply rails, keeping the board area minimal while expanding I/O by 8 pins.
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