MT47H64M16B7-5E:A vs BQ2022LPR
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | Micron Technology Inc. | Texas Instruments |
| Description | IC DRAM 1GBIT PARALLEL 92FBGA | IC EPROM 1KBIT SGL WIRE TO92-3 |
| Package | Tray | Bag |
| Series | - | - |
| Voltage - Supply | 1.7V ~ 1.9V | 2.65V ~ 5.5V |
| Operating Temperature | 0°C ~ 85°C (TC) | -20°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 92-TFBGA | TO-226-3, TO-92-3 (TO-226AA) (Formed Leads) |
| Supplier Device Package | 92-FBGA (11x19) | TO-92-3 |
| Memory Size | 1Gb (64M x 16) | 1Kb (256b x 4 pages) |
| Technology | SDRAM - DDR2 | EPROM - OTP |
| Memory Type | Volatile | Non-Volatile |
| Clock Frequency | 200 MHz | - |
| Access Time | 600 ps | - |
| Memory Format | DRAM | EPROM |
| Write Cycle Time - Word, Page | 15ns | - |
| Memory Interface | Parallel | Single Wire |
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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. 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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3. 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.
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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.
