Memory

Part Number	Description / PDF	Quantity
M24C04-WMN6TP STMicroelectronics	IC EEPROM 4KBIT I2C 400KHZ 8SO	0
M95640-DRMF3TG/K STMicroelectronics	IC EEPROM 64KBIT SPI 20MHZ 8MLP	0
M95040-DRMF3TG/K STMicroelectronics	IC EEPROM 4KBIT SPI 20MHZ 8MLP	4905
M95512-DRDW8TP/K STMicroelectronics	IC EEPROM 512KBIT SPI 8TSSOP	0
M24C04-WDW6TP STMicroelectronics	IC EEPROM 4KBIT I2C 8TSSOP	2790
M95640-WMN6TP STMicroelectronics	IC EEPROM 64KBIT SPI 20MHZ 8SO	1911
M24C04-DRMN3TP/K STMicroelectronics	IC EEPROM 4KBIT I2C 1MHZ 8SO	0
M93C86-WDW6TP STMicroelectronics	IC EEPROM 16KBIT SPI 2MHZ 8TSSOP	25
M95M04-DRMN6TP STMicroelectronics	IC EEPROM 4MBIT SPI 10MHZ 8SOIC	194
M24C32-DRMN3TP/K STMicroelectronics	IC EEPROM 32KBIT I2C 1MHZ 8SO	2336
M95020-DRDW3TP/K STMicroelectronics	IC EEPROM 2KBIT SPI 20MHZ 8TSSOP	0
M24256-DRMF3TG/K STMicroelectronics	IC EEPROM 256KBIT I2C 1MHZ 8MLP	1645
M95020-WMN6P STMicroelectronics	IC EEPROM 2KBIT SPI 20MHZ 8SO	5600
M24128-DFCS6TP/K STMicroelectronics	IC EEPROM 128KBIT I2C 8WLCSP	12097
M24C04-FDW5TP STMicroelectronics	IC EEPROM 4KBIT I2C 8TSSOP	0
M24128-BFMH6TG STMicroelectronics	IC EEPROM 128KBIT I2C 5UFDFPN	23650
M24C64-DFMC6TG STMicroelectronics	IC EEPROM 64KBIT I2C 1MHZ 8MLP	3287
M24M01-DFDW6TP STMicroelectronics	IC EEPROM 1MBIT I2C 1MHZ 8TSSOP	2204
M34C02-WDW6T STMicroelectronics	IC EEPROM 2KBIT I2C 8TSSOP	0
M95020-DRMF3TG/K STMicroelectronics	IC EEPROM 2KBIT SPI 20MHZ 8MLP	3820

Memory

1. Overview

Memory integrated circuits (ICs) are semiconductor devices used for storing digital data in electronic systems. As fundamental components of modern electronics, they enable data retention and retrieval in computers, mobile devices, industrial equipment, and automotive systems. Memory ICs are categorized into volatile (requires power to retain data) and non-volatile (retains data without power) types, playing critical roles in system performance, storage capacity, and energy efficiency.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
DRAM (Dynamic RAM)	High-density, low-cost, requires periodic refresh	PCs, Servers, Graphics Cards
NAND Flash	Non-volatile, high endurance, block-level access	SSDs, USB Drives, Mobile Storage
SRAM (Static RAM)	High-speed, low density, no refresh required	Cache Memory, Networking Equipment
NOR Flash	Random access, execute-in-place capability	Embedded Systems, Automotive ECUs
MRAM (Magnetoresistive RAM)	Non-volatile, unlimited endurance, low power	IoT Devices, Industrial Sensors

3. Structure and Composition

Memory ICs typically consist of:

Storage Cell Array: Matrix of memory cells (transistors/capacitors for DRAM, floating-gate transistors for Flash)
Address Decoder: Selects specific memory locations
I/O Circuits: Data input/output interfaces
Control Logic: Manages read/write operations and timing
Power Management Units: Optimizes energy consumption

Advanced packages include BGA (Ball Grid Array) and 3D-stacked configurations for density optimization.

4. Key Technical Specifications

Parameter	Description	Importance
Storage Capacity	Data volume (Gb/GiB)	Determines system memory limits
Access Time	ns/predictable latency	Impacts processing speed
Power Consumption	mW/MHz	Affects battery life and thermal design
Endurance	P/E cycles (Flash)	Dictates product lifespan
Data Retention	Years (non-volatile)	Critical for long-term storage

5. Application Areas

Consumer Electronics: Smartphones (NAND Flash), Gaming Consoles (GDDR6)
Industrial Automation: PLCs (SRAM), Data Loggers (MRAM)
Automotive Systems: ADAS (LPDDR5), Infotainment (eMMC)
Enterprise Storage: SSD Controllers (3D NAND), Servers (RDIMM)

6. Leading Manufacturers and Products

Manufacturer	Representative Products
Samsung Electronics	V-NAND (9x-layer), LPDDR5X
SK hynix	HBM3 (8GB/s bandwidth), GDDR6
Microchip Technology	Serial NOR Flash (SST26)
Kioxia Corporation	BiCS FLASH (3D NAND)
Infineon Technologies	MRAM (40nm process)

7. Selection Recommendations

Key considerations:

Match memory type to application requirements (e.g., NOR Flash for code storage)
Evaluate bandwidth vs. latency tradeoffs
Analyze temperature and vibration specifications
Assess long-term supply stability
Optimize cost-per-bit metrics

Case Study: A smartphone manufacturer selected UFS 3.1 (NAND-based) for 2100MB/s read speeds, improving app launch times by 35%.

8. Industry Trends

Future directions include:

3D NAND scaling beyond 200 layers
Emerging memories (ReRAM, PCM) for AI acceleration
Package-on-Package (PoP) integration
AI-optimized memory architectures (Processing-in-Memory)
Green manufacturing processes (EUV lithography)