[S-][SERIES][VARIANT][VOLTAGE][PACKAGE][-SUFFIX]
 |     |        |        |        |        |
 |     |        |        |        |        +-- Grade/options (e.g., I6T1U)
 |     |        |        |        +-- Package letter (A, B, U, N)
 |     |        |        +-- 2-3 digit voltage code
 |     |        +-- Variant letter
 |     +-- Series number (1xxx, 80xxx, 35xxx, 82xx, 24C, 93C)
 +-- S- prefix (always present)

S-1167B33A-I6T1U
| |  | | |  |
| |  | | |  +-- I6T1U = Industrial grade, options
| |  | | +-- A = SOT-23 package
| |  | +-- 33 = 3.3V output
| |  +-- B = Variant within series
| +-- 1167 = LDO regulator series
+-- S- = ABLIC prefix

S-80740CNNB-G6T1U
| |   | | |  |
| |   | | |  +-- G6T1U = Grade/options
| |   | | +-- B = SOT-89 package
| |   | +-- NN = Variant/options
| |   +-- C = Type indicator
| +-- 80740 = Voltage detector series
+-- S- = ABLIC prefix

S-35390A-T8T1G
| |   | |  |
| |   | |  +-- T8T1G = Grade/options
| |   | +-- T = TSSOP package
| |   +-- A = Variant
| +-- 35390 = Real-Time Clock series
+-- S- = ABLIC prefix

S-24C02A
| |  | |
| |  | +-- A = SOT-23 package
| |  +-- 02 = 2Kbit density
| +-- 24C = I2C EEPROM series
+-- S- = ABLIC prefix

// ABLIC package codes are single letters
// Position varies by product type
// For LDOs: S-1167B33A -> A after voltage code
// For EEPROM: S-24C02A -> A after density

// LDO pattern: S-[0-9]+[variant][voltage]([package])
Pattern packagePattern = Pattern.compile("^S-[0-9]+[A-Z]*[0-9]{2,3}([ABUNCTSF]).*$");

// EEPROM pattern: S-[0-9]+C[0-9]+([package])
Pattern eepromPattern = Pattern.compile("^S-[0-9]+C[0-9]+([A-Z]).*$");

// Different series have different length numbers
// S-1xxx (4 digits), S-80xxx (5 digits), S-35xxx (5 digits)
// S-82xx/S-82xxx (4-5 digits), S-24C/S-93C (prefix only)

if (upperMpn.matches("^S-1[0-9]{3}.*")) {
    return upperMpn.substring(0, 6);  // S-1167, S-1206
}
if (upperMpn.matches("^S-80[0-9]{3}.*")) {
    return upperMpn.substring(0, 7);  // S-80740, S-80945
}
if (upperMpn.matches("^S-35[0-9]{3}.*")) {
    return upperMpn.substring(0, 7);  // S-35390, S-35198
}
if (upperMpn.matches("^S-24C[0-9]+.*")) {
    return "S-24C";  // I2C EEPROM series
}
if (upperMpn.matches("^S-93C[0-9]+.*")) {
    return "S-93C";  // Microwire EEPROM series
}

public boolean isLDORegulator(String mpn) {
    return mpn.matches("^S-1[0-9]{3}[A-Z0-9-]*$");
}

public boolean isVoltageDetector(String mpn) {
    return mpn.matches("^S-80[0-9]{3}[A-Z0-9-]*$") ||
           mpn.matches("^S-8[07]9[0-9]{2}[A-Z0-9-]*$");
}

public boolean isRTC(String mpn) {
    return mpn.matches("^S-35[0-9]{3}[A-Z0-9-]*$");
}

public boolean isBatteryManagement(String mpn) {
    return mpn.matches("^S-82[0-9]{2,3}[A-Z0-9-]*$");
}

public boolean isEEPROM(String mpn) {
    return mpn.matches("^S-24C[0-9]+.*") ||
           mpn.matches("^S-93C[0-9]+.*");
}

public boolean isI2CEEPROM(String mpn) {
    return mpn.matches("^S-24C[0-9]+[A-Z0-9-]*$");
}

public boolean isMicrowireEEPROM(String mpn) {
    return mpn.matches("^S-93C[0-9]+[A-Z0-9-]*$");
}

// ABLIC handler supports:
// - IC (all parts)
// - VOLTAGE_REGULATOR (S-1xxx LDOs, S-80xxx detectors)
// - MEMORY (S-24Cxx, S-93Cxx EEPROMs)
// - MEMORY_EEPROM (S-24Cxx, S-93Cxx EEPROMs)

// Note: RTC (S-35xxx) and Battery Management (S-82xx) are classified as IC only