W632GG6MB-12 vs AS4C8M32MSA-6BIN
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | Winbond Electronics | Alliance Memory, Inc. |
| Description | IC DRAM 2GBIT PARALLEL 96VFBGA | IC DRAM 256MBIT PARALLEL 90FBGA |
| Package | Tape & Reel (TR) | Bulk |
| Series | - | - |
| Voltage - Supply | 1.425V ~ 1.575V | 1.14V ~ 1.95V |
| Operating Temperature | 0°C ~ 95°C (TC) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 96-VFBGA | 90-VFBGA |
| Supplier Device Package | 96-VFBGA (7.5x13) | 90-FBGA (8x13) |
| Memory Size | 2Gb (128M x 16) | 256Mb (8M x 32) |
| Technology | SDRAM - DDR3 | SDRAM - Mobile |
| Memory Type | Volatile | Volatile |
| Clock Frequency | 800 MHz | 166 MHz |
| Access Time | 20 ns | 5.5 ns |
| Memory Format | DRAM | DRAM |
| Write Cycle Time - Word, Page | - | 15ns |
| Memory Interface | Parallel | Parallel |
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1. What is the difference between RAM and ROM?
RAM is volatile storage and is used to temporarily store data; while ROM is non-volatile storage, which can still save data after the device is turned off, and is usually used to store unchangeable data such as system startup programs.
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2. What is flash memory and what are the common types of flash memory?
Flash memory is a non-volatile memory used to store data, and the data will not be lost even if the device is powered off. Common types are NAND and NOR flash memory, which are mainly used in USB flash drives, SSDs, memory cards, etc.
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3. What is SSD and how to distinguish it from HDD?
SSD (Solid State Drive) is a non-volatile storage device that stores data through flash memory. It has faster read and write speeds than HDD (Hard Disk Drive), no mechanical structure, and long life, but the price is relatively higher.
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4. What is the difference between SRAM and DRAM?
SRAM (static RAM) does not require periodic refreshes and is faster but more expensive; DRAM (dynamic RAM) requires periodic refreshes and has a higher storage density and is suitable for main memory.
