Cantara/.claude/skills/manufacturers/microchip

Microchip Part Number Reference

MPN Structure Overview

Microchip part numbers follow a structured format that identifies the product family, features, temperature grade, and package type.

General Format

[Family][Series][Features]-[TempGrade]/[Package]

Example: PIC16F877A-I/P

• PIC16F: Family (8-bit PIC with Flash)
• 877A: Device number and revision
• -I: Industrial temperature grade
• /P: PDIP package

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PIC Microcontroller Families

8-bit PIC Families

| Prefix | Description | Architecture | |--------|-------------|--------------| | PIC10F | 6-8 pin baseline | 12-bit core | | PIC12F | 8 pin mid-range | 14-bit core | | PIC16F | Mid-range, most popular | 14-bit core | | PIC16F1xxx | Enhanced mid-range | 14-bit enhanced | | PIC18F | High-performance 8-bit | 16-bit core |

Memory Type Indicator

| Letter | Meaning | |--------|---------| | F | Flash memory (electrically erasable) | | C | OTP/EPROM (UV erasable, older parts) | | LF | Low-voltage Flash (1.8V - 3.6V) |

Common 8-bit Device Numbers

| Series | Pin Count | Features | |--------|-----------|----------| | PIC16F84A | 18 | Classic EEPROM device | | PIC16F877A | 40 | Popular development MCU | | PIC16F628A | 18 | USART, comparators | | PIC18F452 | 40 | High-performance | | PIC18F4550 | 40 | USB capable |

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16-bit PIC Families

PIC24 Series

| Prefix | Description | |--------|-------------| | PIC24F | General purpose, low power | | PIC24FJ | Enhanced PIC24F with more peripherals | | PIC24H/HJ | High performance (40 MIPS) | | PIC24EP | Enhanced high performance |

dsPIC Series (Digital Signal Controllers)

| Prefix | Description | |--------|-------------| | dsPIC30F | Original dsPIC, motor control | | dsPIC33FJ | Higher performance, more memory | | dsPIC33EP | Enhanced peripherals | | dsPIC33EV | 5V tolerant | | dsPIC33CH | Dual core | | dsPIC33CK | Single core, cost-optimized |

Example: dsPIC33FJ128GP706A-I/PT

• dsPIC33FJ: dsPIC33F series, J subfamily
• 128: 128KB Flash
• GP: General Purpose
• 706A: 64-pin, revision A
• -I: Industrial temp
• /PT: TQFP package

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32-bit PIC32 Families

| Series | Core | Description | |--------|------|-------------| | PIC32MX | MIPS32 M4K | Original 32-bit, general purpose | | PIC32MZ | MIPS microAptiv | High performance, up to 252 MHz | | PIC32MM | MIPS M4K | Low power, low cost | | PIC32MK | MIPS microAptiv | Motor control focus | | PIC32WK | - | Wireless (WiFi) integrated |

PIC32MX Sub-series

| Sub-series | Focus | |------------|-------| | PIC32MX1xx | Cost-optimized | | PIC32MX2xx | USB capable | | PIC32MX3xx | General purpose | | PIC32MX4xx | USB + more memory | | PIC32MX5xx-7xx | Ethernet MAC |

PIC32MZ Sub-series

| Sub-series | Description | |------------|-------------| | PIC32MZ EC | Basic MZ series | | PIC32MZ EF | With FPU (floating point) | | PIC32MZ DA | With graphics controller + DDR2 |

Example: PIC32MX795F512H-80I/PT

• PIC32MX: 32-bit family
• 795: Series (Ethernet, USB)
• F512: 512KB Flash
• H: 64-pin variant
• -80: 80 MHz speed grade
• I: Industrial temp
• /PT: TQFP package

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Temperature Grade Codes

| Code | Range | Description | |------|-------|-------------| | (none) | 0 to +70C | Commercial | | I | -40 to +85C | Industrial | | E | -40 to +125C | Extended | | H | -40 to +150C | High Temperature (select parts) |

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Package Codes

Common Package Suffixes

| Code | Package Type | Description | |------|--------------|-------------| | P | PDIP | Plastic DIP (through-hole) | | SP | SPDIP | Skinny PDIP (300 mil) | | SO | SOIC | Small Outline IC | | SS | SSOP | Shrink Small Outline Package | | ST | TSSOP | Thin Shrink SOP | | PT | TQFP | Thin Quad Flat Pack | | PF | TQFP | TQFP (larger body) | | ML | QFN | Quad Flat No-Lead | | MV | QFN | QFN variant | | MC | DFN | Dual Flat No-Lead | | MF | DFN-S | DFN (small) | | L | PLCC | Plastic Leaded Chip Carrier | | OT | SOT-23 | Small Outline Transistor |

Combined Temperature + Package Examples

| Suffix | Meaning | |--------|---------| | -I/P | Industrial, PDIP | | -E/SO | Extended, SOIC | | -I/PT | Industrial, TQFP | | -I/ML | Industrial, QFN | | -E/SS | Extended, SSOP | | -I/SP | Industrial, Skinny PDIP |

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Memory Products

I2C EEPROM (24xx Series)

Format: 24[Voltage][Size]-[Temp]/[Package]

| Prefix | Voltage Range | |--------|---------------| | 24AA | 1.7V - 5.5V | | 24LC | 2.5V - 5.5V | | 24FC | 1.7V - 5.5V (High-speed 1MHz) |

| Size Code | Capacity | |-----------|----------| | 00 | 128 bits | | 01 | 1 Kbit | | 02 | 2 Kbit | | 04 | 4 Kbit | | 08 | 8 Kbit | | 16 | 16 Kbit | | 32 | 32 Kbit | | 64 | 64 Kbit | | 128 | 128 Kbit | | 256 | 256 Kbit | | 512 | 512 Kbit | | 1025 | 1 Mbit |

Example: 24LC256-I/SN

• 24LC: 2.5V I2C EEPROM
• 256: 256 Kbit (32KB)
• -I: Industrial temp
• /SN: SOIC-8 package

SPI EEPROM (25xx Series)

| Prefix | Voltage Range | |--------|---------------| | 25AA | 1.8V - 5.5V | | 25LC | 2.5V - 5.5V |

Microwire EEPROM (93xx Series)

| Prefix | Description | |--------|-------------| | 93LC | Standard voltage | | 93AA | Low voltage |

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Interface ICs (MCP Series)

CAN Controllers and Transceivers

| Part | Description | |------|-------------| | MCP2515 | Stand-alone CAN Controller (SPI) | | MCP2517FD | CAN FD Controller | | MCP2518FD | CAN FD Controller (enhanced) | | MCP2551 | High-speed CAN Transceiver | | MCP2561 | CAN FD Transceiver | | MCP2562 | CAN FD Transceiver (fault-tolerant) |

USB Bridges

| Part | Description | |------|-------------| | MCP2200 | USB to UART Bridge | | MCP2221 | USB to I2C/UART Bridge | | MCP2221A | Enhanced USB Bridge |

Real-Time Clocks

| Part | Description | |------|-------------| | MCP7940N | I2C RTC | | MCP79410 | RTC with EEPROM | | MCP79411 | RTC with unique ID | | MCP7951x | SPI RTC with SRAM |

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Handler Implementation Notes

Current MicrochipHandler Issues

1. HashSet Usage: Uses new HashSet<>() instead of Set.of() for immutable sets
2. Pattern Duplication: Many patterns registered for both base type and manufacturer-specific type
3. No Debug Statements: Clean implementation without println

Pattern Registration

The handler registers patterns for:

• All dsPIC variants (30F, 33FJ, 33EP, 33EV, 33CH, 33CK)
• 8-bit PIC (10F, 10LF, 12F, 12LF, 16F, 16LF, 18F, 18LF)
• 16-bit PIC24 (24F, 24FJ, 24EP, 24HJ)
• 32-bit PIC32 (MX, MZ, MM, MK, WK)
• Memory (24AA, 24LC, 24FC, 25AA, 25LC, 93LC, 93AC)
• Interface ICs (MCP25xx, MCP22xx, MCP79xx)

Package Extraction Logic

Current implementation handles:

• Hyphen-separated suffixes: -P, -PT, -ML, -SO, -SS, -ST
• Combined temp+package: -I/P, -E/SO, etc.
• Embedded codes: /P, /PT, /ML, /SO

Series Extraction

• PIC: Extracts up to first non-alphanumeric character
• dsPIC33: Special handling to include sub-family (FJ, EP, etc.)
• Memory: Extracts first 4 characters (e.g., "24LC")
• MCP: Extracts "MCP" + numeric suffix

Supported ComponentTypes

ComponentType.MICROCONTROLLER
ComponentType.MICROCONTROLLER_MICROCHIP
ComponentType.MCU_MICROCHIP
ComponentType.MEMORY
ComponentType.MEMORY_MICROCHIP
ComponentType.PIC_MCU
ComponentType.AVR_MCU
ComponentType.MICROCONTROLLER_ATMEL
ComponentType.MCU_ATMEL
ComponentType.MEMORY_ATMEL
ComponentType.TOUCH_ATMEL
ComponentType.CRYPTO_ATMEL

Note: Handler also covers former Atmel products (AVR, etc.) since Microchip acquired Atmel.

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Test Patterns

Valid PIC MPNs for Testing

# 8-bit
PIC10F200-I/P
PIC12F675-I/SN
PIC16F84A-04/P
PIC16F877A-I/P
PIC16F1459-I/SS
PIC18F4550-I/PT
PIC18LF46K22-I/PT

# 16-bit
PIC24FJ64GA002-I/SP
PIC24EP512GP806-I/PT
dsPIC30F4013-30I/P
dsPIC33FJ128GP706A-I/PT
dsPIC33EP512MU810-I/PT

# 32-bit
PIC32MX250F128B-I/SP
PIC32MX795F512H-80I/PT
PIC32MZ2048EFH144-I/PH

# Memory
24LC256-I/SN
24FC512-E/SM
25LC1024-I/P

# Interface
MCP2515-I/SO
MCP2221A-I/SL

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References

• Microchip Packaging Specification
• PIC Microcontrollers Wikipedia
• Microchip Forum - PIC Naming Conventions
• PIC32 Family Reference Manual