IS62WV5128EBLL-45BLI vs W631GG6KB-12
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | ISSI, Integrated Silicon Solution Inc | Winbond Electronics |
| Description | IC SRAM 4MBIT PARALLEL 36TFBGA | IC DRAM 1GBIT PARALLEL 96WBGA |
| Package | Cut Tape (CT) | Tray |
| Series | - | - |
| Voltage - Supply | 2.2V ~ 3.6V | 1.425V ~ 1.575V |
| Operating Temperature | -40°C ~ 85°C (TA) | 0°C ~ 85°C (TC) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 36-TFBGA | 96-TFBGA |
| Supplier Device Package | 36-TFBGA (6x8) | 96-WBGA (9x13) |
| Memory Size | 4Mb (512K x 8) | 1Gb (64M x 16) |
| Technology | SRAM - Asynchronous | SDRAM - DDR3 |
| Memory Type | Volatile | Volatile |
| Clock Frequency | - | 800 MHz |
| Access Time | 45 ns | 20 ns |
| Memory Format | SRAM | DRAM |
| Write Cycle Time - Word, Page | 45ns | - |
| 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. Is there a relationship between the capacity and speed of memory?
The capacity and speed of memory are not directly related. The capacity refers to the amount of data that the memory can hold, while the speed determines the speed at which the memory reads and writes data. Generally speaking, faster memory such as RAM has a smaller capacity, while large-capacity storage such as HDD is relatively slow.
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3. How to choose the right memory type?
When choosing a memory type, you need to consider speed, capacity, durability and cost according to application requirements. For example, SSD is suitable for data that needs to be accessed quickly, HDD is suitable for large-capacity data storage, and RAM is suitable for high-speed computing.
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4. 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.
