W632GG6MB-12 vs AT28C256F-15JU-T
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | Winbond Electronics | Microchip Technology |
| Description | IC DRAM 2GBIT PARALLEL 96VFBGA | IC EEPROM 256KBIT PAR 32PLCC |
| Package | Tape & Reel (TR) | Bulk |
| Series | - | - |
| Voltage - Supply | 1.425V ~ 1.575V | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 95°C (TC) | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 96-VFBGA | 32-LCC (J-Lead) |
| Supplier Device Package | 96-VFBGA (7.5x13) | 32-PLCC (13.97x11.43) |
| Memory Size | 2Gb (128M x 16) | 256Kb (32K x 8) |
| Technology | SDRAM - DDR3 | EEPROM |
| Memory Type | Volatile | Non-Volatile |
| Clock Frequency | 800 MHz | - |
| Access Time | 20 ns | 150 ns |
| Memory Format | DRAM | EEPROM |
| Write Cycle Time - Word, Page | - | 3ms |
| Memory Interface | Parallel | Parallel |
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1. What is memory and what does it do?
Memory is a computer component that stores data and instructions. It can be temporary (volatile storage) or permanent (non-volatile storage) and is used to support system operation and data storage.
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2. What is the memory hierarchy in a computer?
The computer memory hierarchy includes registers, cache, main memory (RAM), secondary storage (such as HDD or SSD), and external storage (such as tape, optical disk) from speed to capacity, and each level has different storage and access speeds.
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3. Why is the DRAM refresh rate important?
DRAM needs to be refreshed regularly to maintain data. The refresh rate affects the power consumption and speed of the memory. The higher the refresh rate, the faster the memory responds, but it also increases power consumption.
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4. How to extend the life of memory devices?
Measures such as regular data backup, avoiding excessive reading and writing of memory, ensuring proper temperature control, and preventing power fluctuations can help extend the life of memory.
