MCP2155-I/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP2155-I/SS is an IrDA protocol handler and bit encoder IC in 20-pin SSOP package, providing full IrDA SIR, MIR, and FIR protocol management up to 4 Mbps. It offloads infrared communication framing from the host MCU with minimal external components. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP2155-I/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.6000(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP2155-I/SS?
- Full IrDA SIR/MIR/FIR protocol handling up to 4 Mbps offloads MCU bandwidth in wireless infrared links
- Integrated bit encoding and decoding eliminates the need for external IrDA encoder/decoder chips or firmware stacks
- 20-pin SSOP package with 3.3 V compatible interface simplifies integration with modern low-voltage microcontrollers
What is MCP2155-I/SS used for?
The MCP2155-I/SS handles all IrDA framing, bit encoding, and protocol management for infrared point-to-point data links between portable devices such as PDAs, printers, and laptop computers. Its full FIR 4 Mbps support enables fast file transfer applications while SIR 115.2 kbps mode maintains compatibility with legacy IrDA peripherals. The SSOP-20 footprint and direct UART interface to the host MCU reduce firmware complexity and time-to-market in IrDA-enabled embedded products.
What are the specifications of MCP2155-I/SS?
| Pbfree Code | Yes |
| Manufacturer Package Code | SSOP-20 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Telecom IC Type | TELECOM CIRCUIT |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP2155-I/SS datasheet?
MCP2155-I/SS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP2155-I/SS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What IrDA data rates does the MCP2155-I/SS support for wireless infrared communication?
The MCP2155-I/SS supports the full IrDA physical layer specification including SIR at 2.4 kbps to 115.2 kbps, MIR at 0.576 Mbps and 1.152 Mbps, and FIR at 4 Mbps, covering all standard IrDA speeds. This multi-rate support enables backward compatibility with older 9600 bps IrDA devices while achieving maximum 4 Mbps throughput with modern IrDA-compliant equipment.
How does MCP2155-I/SS reduce firmware complexity compared to a software IrDA stack on a bare MCU?
The MCP2155-I/SS handles IrDA framing, CRC generation and checking, bit pulse encoding/decoding, and protocol state machine management in hardware, so the host MCU only needs a standard UART interface at 115.2 kbps or faster. This hardware offload eliminates several thousand lines of IrDA stack firmware, reduces CPU interrupt load by over 80%, and ensures deterministic timing compliance with the 1.6 µs to 16 µs pulse width requirements of IrDA SIR.
For a handheld barcode scanner design, why is MCP2155-I/SS preferred over a software IR solution?
A handheld barcode scanner requires reliable IrDA synchronization within 50 ms of a connection request while simultaneously managing the scan motor and display — CPU tasks that would starve a software IrDA stack. The MCP2155-I/SS independently manages all IrDA protocol timing in hardware, freeing 20-pin SSOP resources to the host processor. Its 3.3 V operation also directly interfaces to low-power scanner MCUs without voltage level translation.
What is the typical lead time and availability for MCP2155-I/SS, and when should procurement be planned?
The MCP2155-I/SS carries a 6-week factory lead time from Microchip authorized distributors, with a YTEOL rating indicating several years of product lifecycle remaining. Designers building IrDA-enabled products in volumes above 1000 units per month should place buffer stock orders at least 8 weeks before production start to account for distributor inventory cycles and prevent line stoppages during peak demand periods.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.4200 | $5.42 |
| 10+ | $4.8600 | $48.60 |
| 25+ | $4.4200 | $110.50 |
| 100+ | $4.1000 | $410.00 |
| 1000+ | $3.9600 | $3960.00 |
| 2546+ | $3.6000 | $9165.60 |
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