Genesys Logic MPN encoding patterns, suffix decoding, and handler guidance. Use when working with Genesys Logic USB controller components or GenesysLogicHandler.
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)
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
| Part Number | Ports | Features |
|---|---|---|
| GL850G | 4 | USB 2.0 4-port hub, LQFP |
| GL852G | 4 | USB 2.0 4-port hub (improved) |
| Part Number | Ports | USB Version | Features |
|---|---|---|---|
| GL3510 | 4 | USB 3.0 | Basic 4-port hub |
| GL3520 | 4 | USB 3.0 | 4-port hub with MTT |
| GL3523 | 7 | USB 3.1 Gen 1 | 7-port hub with MTT |
| GL3590 | 4 | USB 3.0 | 4-port hub |
| Part Number | Ports | USB Version | Features |
|---|---|---|---|
| GL36xx | varies | USB 3.1 Gen 2 | 10 Gbps support |
| Part Number | Description | Features |
|---|---|---|
| GL3220 | Card reader | USB 2.0 |
| GL3224 | Card reader | USB 2.0 |
| GL3227 | Card reader | USB 2.0 |
| Part Number | Description | Features |
|---|---|---|
| GL33xx | Card reader | USB 3.0 |
| Part Number | Description | Features |
|---|---|---|
| GL9801 | USB PD controller | Power delivery |
| GL9802 | USB PD controller | Power delivery |
| Code | Package | Notes |
|---|---|---|
| G | LQFP | Low-profile QFP (GL850G, GL852G) |
| Q | QFN | Quad flat no-lead |
| S | SSOP | Shrink SOP |
| T | TQFP | Thin QFP |
| Code | Package | Notes |
|---|---|---|
| -QFN | QFN | Generic QFN |
| -QFN88 | QFN-88 | 88-pin QFN |
| -LQFP | LQFP | Generic LQFP |
| -SSOP | SSOP | Generic SSOP |
| Suffix | Meaning |
|---|---|
| -REEL | Tape and reel packaging |
| -TR | Tape and reel (alternate) |
| Series | USB Version | Speed |
|---|---|---|
| GL85x | USB 2.0 | 480 Mbps |
| GL3510, GL3520 | USB 3.0 | 5 Gbps |
| GL3523, GL3590 | USB 3.1 Gen 1 | 5 Gbps |
| GL36xx | USB 3.1 Gen 2 | 10 Gbps |
| GL32xx | USB 2.0 | 480 Mbps |
| GL33xx | USB 3.0 | 5 Gbps |
// 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}.*"
// 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
}
Returns specific series identifiers:
| Series | Downstream Ports |
|---|---|
| GL850, GL852 | 4 |
| GL3510, GL3520 | 4 |
| GL3523 | 7 |
| GL3590 | 4 |
MTT allows better performance when multiple USB 2.0 devices are connected behind a USB 3.0 hub.
| Part | MTT Support |
|---|---|
| GL850G, GL852G | No |
| GL3510 | No |
| GL3520 | Yes |
| GL3523 | Yes |
| GL3590 | No |
manufacturers/GenesysLogicHandler.javaIC| Original | Replacement | Notes |
|---|---|---|
| GL850G | GL852G | Same port count, improved features |
| GL3510 | GL3520 | Same port count, adds MTT |
Parts with same series but different packages are interchangeable functionally:
| Application | Recommended Part | Notes |
|---|---|---|
| Basic USB 2.0 hub | GL852G | 4-port, improved GL850 |
| USB 3.0 hub | GL3520 | 4-port with MTT |
| Multi-port USB 3.0 | GL3523 | 7-port with MTT |
| High-speed USB 3.1 | GL36xx | USB 3.1 Gen 2 |
| Application | Recommended Part | Notes |
|---|---|---|
| USB 2.0 card reader | GL3220 | Basic USB 2.0 |
| USB 3.0 card reader | GL33xx | Higher speed |