MCP2140-I/SO IRDA Controller Equivalent & Substitute Parts

Part Overview

The MCP2140-I/SO is an IRDA® Controller with UART interface manufactured by Microchip Technology, designed for DTE/DCE applications in the 18-SOIC package. This active product provides infrared communication control functionality with supply voltage range of 3V to 5.5V and operating temperature range of -40°C to 125°C. Alternative part numbers are necessary when specific packaging requirements (Tape & Reel versus Tube) or product variants are needed to meet procurement, inventory, or application-specific constraints.

Substiute Parts

MCP2140-I/SO

Microchip TechnologyIn Stock: 1639MCP2140-I/SO Datasheet

Current PartRFQ

MCP2140T-I/SO

Microchip TechnologyIn Stock: 5792MCP2140T-I/SO Datasheet

DirectRFQ

MCP2140A-I/SO

Microchip TechnologyIn Stock: 1287MCP2140A-I/SO Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of MCP2140-I/SO is determined by strict equivalence across the following critical parameters:

• IRDA® protocol implementation
• UART interface specification
• 18-SOIC package geometry (0.295", 7.50mm Width)
• Voltage supply range: 3V ~ 5.5V
• Current supply: 2.2mA
• Operating temperature range: -40°C ~ 125°C
• RoHS3 compliance status
• MSL rating: 1 (Unlimited)

The substitute parts listed below maintain identical electrical and mechanical specifications. Differences are limited to packaging format (Tube versus Tape & Reel) and product variant designation, which do not affect functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—MCP2140-I/SO, MCP2140T-I/SO, and MCP2140A-I/SO—are active products from Microchip Technology with identical electrical specifications and RoHS3 compliance. Selection between these parts is based on packaging and procurement requirements:

• MCP2140-I/SO: Tube packaging format. Select when component quantities and handling procedures align with tube-based assembly processes.
• MCP2140T-I/SO: Tape & Reel (TR) packaging format. Select for high-volume automated assembly operations requiring continuous reel feeding.
• MCP2140A-I/SO: Tube packaging format, product variant designation. Select when the specific variant is required by design documentation or supply chain specifications.

All parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with standard PCB assembly and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can MCP2140T-I/SO replace MCP2140-I/SO in a circuit design? A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: MCP2140-I/SO uses Tube packaging, while MCP2140T-I/SO uses Tape & Reel format. Circuit functionality is unaffected by this packaging difference.

Q: What is the difference between MCP2140-I/SO and MCP2140A-I/SO? A: Both parts share identical electrical specifications, voltage supply range (3V ~ 5.5V), current consumption (2.2mA), operating temperature range (-40°C ~ 125°C), and 18-SOIC package geometry. The designation difference indicates a product variant; both are active products with ROHS3 compliance.

Q: Which part should I select for automated assembly? A: MCP2140T-I/SO is designed for automated assembly with Tape & Reel packaging. This format enables continuous feeding through pick-and-place equipment. Tube-packaged variants (MCP2140-I/SO and MCP2140A-I/SO) are suitable for manual or semi-automated assembly processes.

Q: Are all three parts RoHS3 compliant? A: Yes. MCP2140-I/SO, MCP2140T-I/SO, and MCP2140A-I/SO are all ROHS3 compliant with MSL rating of 1 (Unlimited), meeting standard environmental and storage requirements.

Q: Can I use these parts interchangeably in my design? A: Yes, provided packaging format and procurement logistics are compatible with your assembly process. All three parts maintain identical IRDA® protocol implementation, UART interface specification, and electrical operating parameters.