genesyslogic

name: genesyslogic description: Genesys Logic MPN encoding patterns, suffix decoding, and handler guidance. Use when working with Genesys Logic USB controller components or GenesysLogicHandler.

Genesys Logic Manufacturer Skill

MPN Structure

Genesys Logic MPNs follow this general structure:

[PREFIX][SERIES][MODEL][PACKAGE][-OPTIONS]
   |       |       |       |        |
   |       |       |       |        +-- Optional: -QFN88, -REEL, -TR
   |       |       |       +-- Package letter: G=LQFP, Q=QFN, S=SSOP
   |       |       +-- Model digits (varies by series)
   |       +-- Series: 85, 35, 32, 33, 36, 98
   +-- GL prefix (all Genesys Logic products)

Example Decoding

GL850G
|  | ||
|  | |+-- G = LQFP package
|  | +-- 0 = base model
|  +-- 85 = USB 2.0 hub series
+-- GL = Genesys Logic prefix

GL3523-QFN88
|  |   |
|  |   +-- QFN88 = 88-pin QFN package
|  +-- 3523 = USB 3.1 Gen 1 7-port hub
+-- GL = Genesys Logic prefix

Product Families

GL85x Series - USB 2.0 Hubs

GL35xx Series - USB 3.0/3.1 Hubs

GL36xx Series - USB 3.1 Gen 2 Hubs

GL32xx Series - USB 2.0 Card Readers

GL33xx Series - USB 3.0 Card Readers

GL98xx Series - USB Power Delivery Controllers

Package Codes

Single-Letter Suffixes (3-digit models)

Hyphenated Package Codes (4-digit models)

Tape and Reel Suffixes

USB Version Reference

Handler Implementation Notes

Pattern Matching

// GL850/GL852 series - USB 2.0 hubs (GL850G, GL852G)
"^GL85[0-9][A-Z].*"

// GL35xx series - USB 3.0/3.1 hubs (GL3510, GL3520, GL3523, GL3590)
"^GL35[0-9]{2}.*"

// GL36xx series - USB 3.1 Gen 2 hubs
"^GL36[0-9]{2}.*"

// GL32xx series - Card readers (GL3220, GL3224, GL3227)
"^GL32[0-9]{2}.*"

// GL33xx series - USB 3.0 card readers
"^GL33[0-9]{2}.*"

// GL98xx series - USB PD controllers (GL9801, GL9802)
"^GL98[0-9]{2}.*"

Package Code Extraction

// Step 1: Remove -REEL, -TR suffixes
String cleanMpn = mpn.replaceAll("-?(REEL|TR)$", "");

// Step 2: Check for hyphenated package (GL3523-QFN88)
int hyphen = cleanMpn.indexOf('-');
if (hyphen > 0) {
    String afterHyphen = cleanMpn.substring(hyphen + 1);
    String packageType = afterHyphen.replaceAll("[0-9]+$", ""); // Remove pin count
    return packageType;  // e.g., "QFN"
}

// Step 3: Check for 3-digit + letter format (GL850G)
if (cleanMpn.matches("^GL[0-9]{3}[A-Z]$")) {
    String suffix = cleanMpn.substring(cleanMpn.length() - 1);
    return resolvePackageCode(suffix);  // G -> LQFP
}

Series Extraction

Returns specific series identifiers:

• GL850G -> "GL850"
• GL852G -> "GL852"
• GL3510 -> "GL3510"
• GL3523 -> "GL3523"

Port Count Reference

MTT Support (Multiple Transaction Translator)

MTT allows better performance when multiple USB 2.0 devices are connected behind a USB 3.0 hub.

Related Files

• Handler: manufacturers/GenesysLogicHandler.java
• Component types: IC

Official Replacements

Upgrade Paths

Package Variants

Parts with same series but different packages are interchangeable functionally:

• GL850G (LQFP) can be replaced by GL850Q (QFN) with PCB redesign
• GL3523-QFN88 is the standard package for GL3523

Common Use Cases

USB Hub Designs

Card Reader Designs

Learnings & Edge Cases

• 3-digit vs 4-digit: GL85x uses 3-digit model + package letter (GL850G), while GL35xx uses 4-digit model + hyphenated package (GL3523-QFN88).
• Package suffix position: For 3-digit models, package letter is concatenated; for 4-digit models, package comes after hyphen.
• Pin count in package: QFN88 means 88-pin QFN - the number is pin count, not part of package type.
• Tape and reel: -REEL and -TR suffixes should be stripped before extracting package code.
• MTT importance: For USB 3.0 hubs with many USB 2.0 devices, MTT support (GL3520, GL3523) provides better performance.
• GL852 vs GL850: GL852G is an improved version of GL850G with better compatibility - use GL852G for new designs.