W632GU6MB-12 vs AS4C128M8D3LB-12BIN
| 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 1GBIT PARALLEL 78FBGA |
| Package | Tray | Tray |
| Series | - | - |
| Voltage - Supply | 1.283V ~ 1.45V | 1.283V ~ 1.45V |
| Operating Temperature | 0°C ~ 95°C (TC) | -40°C ~ 95°C (TC) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 96-VFBGA | 78-VFBGA |
| Supplier Device Package | 96-VFBGA (7.5x13) | 78-FBGA (8x10.5) |
| Memory Size | 2Gb (128M x 16) | 1Gb (128M x 8) |
| Technology | SDRAM - DDR3 | SDRAM - DDR3L |
| Memory Type | Volatile | Volatile |
| Clock Frequency | 800 MHz | 800 MHz |
| Access Time | 20 ns | 20 ns |
| Memory Format | DRAM | DRAM |
| Write Cycle Time - Word, Page | - | 15ns |
| Memory Interface | Parallel | Parallel |
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1. 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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2. What are volatile and non-volatile memory?
Volatile memory loses data when power is off, such as RAM; non-volatile memory retains data after power is off, such as ROM and flash memory.
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3. What is double data rate (DDR) memory?
DDR memory is a RAM technology that can transmit data at both the rising and falling edges of the clock signal to increase the data transmission speed. There are multiple generations of DDR, such as DDR3, DDR4, DDR5, etc., each generation has higher speed and capacity and lower power consumption.
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4. What is virtual memory and how does it work?
Virtual memory is a technology that uses hard disk space as memory, allowing the system to use hard disk space to expand memory when physical RAM is insufficient, improving the system's multitasking capabilities.
