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majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Memory by majiayu000 — Agent Skill

Name: Memory
Rating: 4.2 (5 reviews)
Author: majiayu000

File contents

Memory Component Skill

Guidance for working with memory components in the lib-electronic-components library.

Supported Manufacturers & Patterns

Manufacturer	Handler	MPN Patterns	Example
Winbond	`WinbondHandler`	`W25Q#`, `W25X#`, `W##`	`W25Q128JVSIQ`
Micron	`MicronHandler`	`MT#`, `N25Q#`, `M25P#`	`MT25QL128ABA`
ISSI	`ISSIHandler`	`IS#`, `IS25LP#`, `IS25WP#`	`IS25LP128F`
Microchip	`MicrochipHandler`	`AT24C#`, `AT25#`, `SST26#`	`AT24C256`
Macronix	Various	`MX25#`	`MX25L12835F`
Cypress/Infineon	`CypressHandler`	`S25FL#`, `FM24#`	`S25FL128S`

ComponentTypes

// Base types
ComponentType.MEMORY
ComponentType.MEMORY_FLASH
ComponentType.MEMORY_EEPROM

// Manufacturer-specific types
ComponentType.MEMORY_FLASH_WINBOND
ComponentType.MEMORY_EEPROM_WINBOND
ComponentType.MEMORY_MICRON
ComponentType.MEMORY_ISSI
ComponentType.MEMORY_MICROCHIP
ComponentType.MEMORY_ATMEL
ComponentType.MEMORY_INFINEON
ComponentType.MEMORY_NXP
ComponentType.MEMORY_ST
ComponentType.MEMORY_RENESAS
ComponentType.MEMORY_MAXIM

Flash Memory

Winbond W25Q Series (SPI NOR Flash)

W25Q 128 JV SIQ
│    │   │  │
│    │   │  └── Package (SIQ=SOIC-8 150mil)
│    │   └───── Voltage/Grade (JV=3.3V, FV=1.8V)
│    └───────── Density (128=128Mbit)
└────────────── Series

Common Densities

Code	Size
32	32Mbit (4MB)
64	64Mbit (8MB)
128	128Mbit (16MB)
256	256Mbit (32MB)
512	512Mbit (64MB)

Interfaces

Type	Description	Speed
SPI	Serial Peripheral Interface	50-133MHz
QSPI	Quad SPI	104-133MHz
DSPI	Dual SPI	80-104MHz
Parallel	Parallel interface	Various

EEPROM

Microchip AT24C Series (I2C EEPROM)

AT24C 256 C
│     │   │
│     │   └── Temperature range (C=Commercial)
│     └────── Density (256=256Kbit)
└──────────── Series (I2C EEPROM)

Common EEPROM Series

Series	Interface	Organization
AT24C	I2C	x8
AT25	SPI	x8
93C	Microwire	x8/x16

SRAM

Patterns

Manufacturer	Pattern	Example
ISSI	`IS61#`, `IS62#`	`IS62WV12816BLL`
Cypress	`CY62#`, `CY7C#`	`CY62256NLL`

Adding New Memory Patterns

In the manufacturer handler's initializePatterns():

registry.addPattern(ComponentType.MEMORY, "^NEWMEM[0-9].*");
registry.addPattern(ComponentType.MEMORY_FLASH, "^NEWMEM[0-9].*");
registry.addPattern(ComponentType.MEMORY_MANUFACTURER, "^NEWMEM[0-9].*");

Add to getSupportedTypes():

types.add(ComponentType.MEMORY);
types.add(ComponentType.MEMORY_FLASH);
types.add(ComponentType.MEMORY_MANUFACTURER);

Similarity Calculation

MemorySimilarityCalculator compares:

Memory type (Flash, EEPROM, SRAM)
Density/capacity
Interface (SPI, I2C, parallel)
Voltage range
Speed grade
Package

Package Codes

Code	Package
SIQ	SOIC-8 150mil
SIG	SOIC-8 208mil
DIQ	DFN-8
CIQ	WSON-8
BIQ	BGA
PIQ	PDIP-8

Memory Type Detection

The library can detect memory types from MPN patterns:

// Detect flash memory
ComponentType type = ComponentType.fromMPN("W25Q128JVSIQ");
// Returns MEMORY_FLASH_WINBOND

// Detect EEPROM
ComponentType type = ComponentType.fromMPN("AT24C256");
// Returns MEMORY_EEPROM or MEMORY_ATMEL

Learnings & Quirks

---name: memory-6description: Use when working with memory components - Flash, EEPROM, SRAM, DRAM. Includes adding patterns, parsing memory MPNs, extracting capacity, interface type, and speed information.--- # Memory Component Skill Guidance for working with memory components in the lib-electronic-components library. ## Supported Manufacturers & Patterns | Manufacturer | Handler | MPN Patterns | Example | |--------------|---------|--------------|---------| | Winbond | `WinbondHandler` | `W25Q#`, `W25X#`, `W##` | `W25Q128JVSIQ` | | Micron | `MicronHandler` | `MT#`, `N25Q#`, `M25P#` | `MT25QL128ABA` | | ISSI | `ISSIHandler` | `IS#`, `IS25LP#`, `IS25WP#` | `IS25LP128F` | | Microchip | `MicrochipHandler` | `AT24C#`, `AT25#`, `SST26#` | `AT24C256` | | Macronix | Various | `MX25#` | `MX25L12835F` | | Cypress/Infineon | `CypressHandler` | `S25FL#`, `FM24#` | `S25FL128S` | ## ComponentTypes ```java // Base types ComponentType.MEMORY ComponentType.MEMORY_FLASH ComponentType.MEMORY_EEPROM // Manufacturer-specific types ComponentType.MEMORY_FLASH_WINBOND ComponentType.MEMORY_EEPROM_WINBOND ComponentType.MEMORY_MICRON ComponentType.MEMORY_ISSI ComponentType.MEMORY_MICROCHIP ComponentType.MEMORY_ATMEL ComponentType.MEMORY_INFINEON ComponentType.MEMORY_NXP ComponentType.MEMORY_ST ComponentType.MEMORY_RENESAS ComponentType.MEMORY_MAXIM ``` ## Flash Memory ### Winbond W25Q Series (SPI NOR Flash) ``` W25Q 128 JV SIQ │ │ │ │ │ │ │ └── Package (SIQ=SOIC-8 150mil) │ │ └───── Voltage/Grade (JV=3.3V, FV=1.8V) │ └───────── Density (128=128Mbit) └────────────── Series ``` ### Common Densities | Code | Size | |------|------| | 32 | 32Mbit (4MB) | | 64 | 64Mbit (8MB) | | 128 | 128Mbit (16MB) | | 256 | 256Mbit (32MB) | | 512 | 512Mbit (64MB) | ### Interfaces | Type | Description | Speed | |------|-------------|-------| | SPI | Serial Peripheral Interface | 50-133MHz | | QSPI | Quad SPI | 104-133MHz | | DSPI | Dual SPI | 80-104MHz | | Parallel | Parallel interface | Various | ## EEPROM ### Microchip AT24C Series (I2C EEPROM) ``` AT24C 256 C │ │ │ │ │ └── Temperature range (C=Commercial) │ └────── Density (256=256Kbit) └──────────── Series (I2C EEPROM) ``` ### Common EEPROM Series | Series | Interface | Organization | |--------|-----------|--------------| | AT24C | I2C | x8 | | AT25 | SPI | x8 | | 93C | Microwire | x8/x16 | ## SRAM ### Patterns | Manufacturer | Pattern | Example | |--------------|---------|---------| | ISSI | `IS61#`, `IS62#` | `IS62WV12816BLL` | | Cypress | `CY62#`, `CY7C#` | `CY62256NLL` | ## Adding New Memory Patterns 1. In the manufacturer handler's `initializePatterns()`: ```java registry.addPattern(ComponentType.MEMORY, "^NEWMEM[0-9].*"); registry.addPattern(ComponentType.MEMORY_FLASH, "^NEWMEM[0-9].*"); registry.addPattern(ComponentType.MEMORY_MANUFACTURER, "^NEWMEM[0-9].*"); ``` 2. Add to `getSupportedTypes()`: ```java types.add(ComponentType.MEMORY); types.add(ComponentType.MEMORY_FLASH); types.add(ComponentType.MEMORY_MANUFACTURER); ``` ## Similarity Calculation `MemorySimilarityCalculator` compares: - Memory type (Flash, EEPROM, SRAM) - Density/capacity - Interface (SPI, I2C, parallel) - Voltage range - Speed grade - Package ## Package Codes | Code | Package | |------|---------| | SIQ | SOIC-8 150mil | | SIG | SOIC-8 208mil | | DIQ | DFN-8 | | CIQ | WSON-8 | | BIQ | BGA | | PIQ | PDIP-8 | ## Memory Type Detection The library can detect memory types from MPN patterns: ```java // Detect flash memory ComponentType type = ComponentType.fromMPN("W25Q128JVSIQ"); // Returns MEMORY_FLASH_WINBOND // Detect EEPROM ComponentType type = ComponentType.fromMPN("AT24C256"); // Returns MEMORY_EEPROM or MEMORY_ATMEL ``` --- ## Learnings & Quirks

Frequently asked questions