prolific

# Prolific Technology Manufacturer Skill ## MPN Structure Prolific MPNs follow this general structure: ``` PL[SERIES][VARIANT][PACKAGE][-REEL] | | | | | | | | | └── Optional: REEL, TUBE, TRAY, TR for packaging | | | └── Package code (implicitly determined by variant for PL2303) | | └── Variant letters (HX, HXA, HXD, TA, GT, GC, GL, RA, SA, etc.) | └── 4-digit series number (23xx, 25xx, 27xx, 38xx) └── PL = Prolific prefix ``` ### Example Decoding ``` PL2303HXA-SSOP │ │ │ │ │ │ │ └── SSOP package │ │ └── HXA = Enhanced HX variant │ └── 2303 = USB to serial converter └── PL = Prolific prefix PL2303GT │ │ │ │ │ └── GT = QFN package variant │ └── 2303 = USB to serial converter └── PL = Prolific prefix ``` --- ## Product Series ### PL23xx Series - USB to Serial | Series | Type | Description | |--------|------|-------------| | PL2303 | USB-Serial | USB to RS-232 serial converter (most common) | | PL2312 | USB-Serial | Enhanced USB to serial | ### PL25xx Series - USB Bridge | Series | Type | Description | |--------|------|-------------| | PL2501 | Bridge | USB 2.0 to ATA/ATAPI bridge | | PL2571 | Bridge | USB 2.0 to IDE bridge | ### PL27xx Series - USB Hub | Series | Type | Description | |--------|------|-------------| | PL2734 | Hub | USB 2.0 4-port hub controller | | PL2773 | Hub | USB 3.0 4-port hub controller | ### PL38xx Series - USB to Parallel | Series | Type | Description | |--------|------|-------------| | PL3805 | USB-Parallel | USB to parallel port converter | --- ## PL2303 Variants The PL2303 series has many variants with different features: | Variant | Package | Features | |---------|---------|----------| | (none) | SOP | Standard, basic version | | HX | SSOP | Enhanced, higher speed | | HXA | SSOP | HX with improved GPIO | | HXD | SSOP | Latest HX generation | | TA | SSOP-28 | Extended features | | GT | QFN | Small form factor, GPIO | | GC | QFN | Compact version | | GL | QFN | Low power variant | | RA | SOP | RoHS compliant | | SA | SOP | Standard alternate | --- ## Package Codes | Code | Package | Notes | |------|---------|-------| | S | SOP | Small Outline Package | | SOP | SOP | Explicit form | | SS | SSOP | Shrink SOP | | SSOP | SSOP | Explicit form | | Q | QFN | Quad Flat No-Lead | | QFN | QFN | Explicit form | | TSS | TSSOP | Thin Shrink SOP | | TSSOP | TSSOP | Explicit form | --- ## USB Version by Series | Series | USB Version | |--------|-------------| | PL2303 | USB 2.0 (Full Speed) | | PL2312 | USB 2.0 | | PL2501 | USB 2.0 | | PL2571 | USB 2.0 | | PL2734 | USB 2.0 | | PL2773 | USB 3.0 | | PL38xx | USB 2.0 | --- ## Handler Implementation Notes ### Pattern Matching ```java // PL23xx series - USB to serial converters "^PL23[0-9]{2}[A-Z]*.*" // PL25xx series - USB bridge ICs "^PL25[0-9]{2}[A-Z]*.*" // PL27xx series - USB hub controllers "^PL27[0-9]{2}[A-Z]*.*" // PL38xx series - USB to parallel converters "^PL38[0-9]{2}[A-Z]*.*" ``` ### Series Extraction ```java // Series is "PL" + 4 digits // PL2303HXA -> PL2303 // PL2773 -> PL2773 if (upperMpn.matches("^PL2303.*")) { return "PL2303"; } // Generic: return first 6 characters ``` ### Package Code Extraction ```java // For PL2303 variants, package is implied by variant: // HX, HXA, HXD, TA -> SSOP // GT, GC, GL -> QFN // RA, SA, S -> SOP // Explicit package after hyphen: // PL2303HXA-SSOP -> SSOP ``` ### Variant Extraction (PL2303) ```java // Check variants from longest to shortest: if (suffix.startsWith("HXD")) return "HXD"; if (suffix.startsWith("HXA")) return "HXA"; if (suffix.startsWith("HX")) return "HX"; if (suffix.startsWith("GT")) return "GT"; if (suffix.startsWith("GL")) return "GL"; if (suffix.startsWith("GC")) return "GC"; if (suffix.startsWith("TA")) return "TA"; if (suffix.startsWith("RA")) return "RA"; if (suffix.startsWith("SA")) return "SA"; ``` --- ## Replacement Compatibility ### PL2303 Family Compatibility All PL2303 variants are generally compatible: - Same USB-to-serial functionality - Different variants offer additional features (GPIO, speed) - Software drivers are largely interchangeable ### Hub Controllers Hub controllers are NOT interchangeable across USB versions: - PL2734 (USB 2.0) is NOT compatible with PL2773 (USB 3.0) - Within same USB version, hubs are compatible --- ## Driver Notes - **PL2303 driver compatibility**: Different OS versions may require different drivers - **Counterfeit chip detection**: Prolific drivers detect counterfeit chips and refuse to work - **HXA/HXD variants**: Require newer drivers than original PL2303 --- ## Related Files - Handler: `manufacturers/ProlificHandler.java` - Component types: `ComponentType.IC` --- ## Learnings & Edge Cases - **PL2303 is the dominant product**: Most Prolific parts are PL2303 variants - **Variant determines package**: Unlike other manufacturers, the variant suffix often implies the package type - **Driver compatibility issues**: PL2303 has complex driver compatibility across variants and OS versions - **Counterfeit detection**: Prolific implemented counterfeit detection in drivers, causing issues with some legacy parts - **USB version in series number**: PL27xx uses last digit to hint at USB version (PL2773 = USB 3.0) - **No manufacturer-specific ComponentTypes**: All parts use generic `ComponentType.IC` <!-- Add new learnings above this line -->