PCF8570T/F5,512 vs N25Q032A13ESCA0F TR
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | NXP USA Inc. | Micron Technology Inc. |
| Description | IC SRAM 2KBIT I2C 100KHZ 8SO | IC FLASH 32MBIT SPI 108MHZ 8SO |
| Package | Tube | -Reel® |
| Series | - | - |
| Voltage - Supply | 2.5V ~ 6V | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.295\", 7.50mm Width) | 8-SOIC (0.154\", 3.90mm Width) |
| Supplier Device Package | 8-SO | 8-SO |
| Memory Size | 2Kb (256 x 8) | 32Mb (8M x 4) |
| Technology | SRAM | FLASH - NOR |
| Memory Type | Volatile | Non-Volatile |
| Clock Frequency | 100 kHz | 108 MHz |
| Access Time | - | - |
| Memory Format | SRAM | FLASH |
| Write Cycle Time - Word, Page | - | 8ms, 5ms |
| Memory Interface | I²C | SPI |
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1. 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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2. 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.
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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. How to upgrade the computer's memory?
Computer storage performance can usually be improved by adding RAM modules or upgrading the HDD to a faster SSD. It is also necessary to ensure that the new hardware is compatible with the system, especially motherboard support and memory type.
