sitronix

# Sitronix Technology Manufacturer Skill ## MPN Structure Sitronix MPNs follow this general structure: ``` [PREFIX][SERIES][MODEL][VARIANT][PACKAGE] | | | | | | | | | +-- Package suffix (S=SOP, V=LQFP, R=QFN) | | | +-- Optional variant letter or revision | | +-- Model number (65, 89, 20, etc.) | +-- Series digits (75, 77, 79, 16) +-- ST prefix (all Sitronix products) ``` ### Example Decoding ``` ST7735S | | || | | |+-- S = SOP package | | +-- (no variant) | +-- 7735 = TFT display driver model +-- ST = Sitronix prefix ST7920-0B | | ||| | | ||+-- B = COG package | | |+-- 0 = revision/option | | +-- hyphen separator | +-- 7920 = Graphic LCD controller +-- ST = Sitronix prefix ``` --- ## Product Families ### ST75xx Series - TFT LCD Controllers | Part Number | Description | Resolution | |-------------|-------------|------------| | ST7565 | COG LCD controller | 128x64 | | ST7567 | COG LCD controller | 128x64 | | ST7571 | TFT LCD controller | 132x64 | | ST7580 | TFT LCD controller | Variable | ### ST77xx Series - TFT Display Drivers | Part Number | Description | Resolution | |-------------|-------------|------------| | ST7735 | 1.8" TFT driver | 128x160 | | ST7735S | 1.8" TFT driver (SOP) | 128x160 | | ST7789 | 2.0-2.4" TFT driver | 240x320 | | ST7789V | ST7789 in LQFP | 240x320 | | ST7796 | 3.5"+ TFT driver | 320x480 | ### ST79xx Series - Graphic LCD Controllers | Part Number | Description | Features | |-------------|-------------|----------| | ST7920 | Graphic LCD controller | Chinese font ROM | | ST7920-0B | ST7920 COG variant | Built-in fonts | ### ST16xx Series - LED Drivers | Part Number | Description | Channels | |-------------|-------------|----------| | ST1628 | LED driver | Segment display | | ST1633 | LED driver | Matrix display | --- ## Package Codes ### Single-Letter Suffixes | Code | Package | Notes | |------|---------|-------| | S | SOP | Small outline package | | V | LQFP | Low-profile QFP | | R | QFN | Quad flat no-lead | | B | COG | Chip-on-glass | ### Multi-Letter Package Codes | Code | Package | Notes | |------|---------|-------| | QFP | QFP | Quad flat package | | LQFP | LQFP | Low-profile QFP | | COG | COG | Chip-on-glass | | COF | COF | Chip-on-film | | QFN | QFN | Quad flat no-lead | | SOP | SOP | Small outline package | | SSOP | SSOP | Shrink SOP | | TSSOP | TSSOP | Thin shrink SOP | | TQFP | TQFP | Thin QFP | | BGA | BGA | Ball grid array | --- ## Naming Pattern Conflicts ### ST vs STMicroelectronics **IMPORTANT**: Both Sitronix (Taiwan) and STMicroelectronics (Europe) use the "ST" prefix! **Sitronix patterns**: ST followed by 2-digit series + 2-digit model - ST75xx, ST77xx, ST79xx (display controllers) - ST16xx (LED drivers) **STMicroelectronics patterns**: STM prefix or different number patterns - STM32Fxxx (microcontrollers) - STM8xxx (8-bit MCUs) - L78xx (voltage regulators) **How to distinguish**: ```java // Sitronix: ST + specific series numbers "^ST(75|77|79|16)[0-9]{2}[A-Z0-9-]*$" // STMicroelectronics: STM prefix or different patterns "^STM[0-9].*" // MCUs "^L78[0-9]{2}.*" // Regulators ``` --- ## Handler Implementation Notes ### Pattern Matching ```java // ST75xx - TFT LCD controllers "^ST75[0-9]{2}[A-Z0-9-]*$" // ST77xx - TFT display drivers "^ST77[0-9]{2}[A-Z0-9-]*$" // ST79xx - Graphic LCD controllers (includes ST7920) "^ST79[0-9]{2}[A-Z0-9-]*$" // ST16xx - LED drivers "^ST16[0-9]{2}[A-Z0-9-]*$" ``` ### Package Code Extraction ```java // Step 1: Handle hyphenated suffixes (ST7920-0B) int hyphen = mpn.indexOf('-'); String basePart = hyphen >= 0 ? mpn.substring(0, hyphen) : mpn; // Step 2: Extract suffix from ST[0-9]{4}[letters] Pattern packagePattern = Pattern.compile("^ST[0-9]{4}([A-Z]+)$"); // Step 3: Map single-letter codes switch (code) { case "S": return "SOP"; case "V": return "LQFP"; case "R": return "QFN"; case "B": return "COG"; } ``` ### Series Extraction Returns the first 4 characters (ST + 2 digits): - ST7735S -> "ST77" - ST7920 -> "ST79" - ST1628 -> "ST16" --- ## Related Files - Handler: `manufacturers/SitronixHandler.java` - Component types: `IC`, `LED_DRIVER` --- ## Common Use Cases ### Embedded Display Projects Sitronix controllers are widely used in: - Arduino/Raspberry Pi displays: ST7735 (1.8" TFT), ST7789 (2.0" TFT) - Character LCDs: ST7920 (128x64 with Chinese fonts) - LED segment displays: ST1628 ### Popular Development Modules | Module | Controller | Resolution | Interface | |--------|------------|------------|-----------| | 1.8" TFT | ST7735 | 128x160 | SPI | | 2.0" TFT | ST7789 | 240x320 | SPI | | 2.4" TFT | ST7789V | 240x320 | SPI | | 12864 LCD | ST7920 | 128x64 | Parallel/SPI | --- ## Learnings & Edge Cases - **ST7735 vs ST7735S**: The "S" is the package code (SOP), not part of the model number. - **ST7920 variants**: ST7920-0B has hyphenated option code; the "0" is a revision, "B" is COG package. - **Sitronix vs STMicro**: Always check the number pattern - Sitronix uses ST[75|77|79|16]xx while STMicro uses STM[8|32] or other prefixes. - **Display resolution**: The model number sometimes hints at resolution capability, but datasheet verification is required. - **COG/COF packages**: These are bare die packages for direct bonding, common in display applications. <!-- Add new learnings above this line -->