93LC66B-I/ST vs 24LC08B-I/P
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | Microchip Technology | Microchip Technology |
| Description | IC EEPROM 4KBIT SPI 2MHZ 8TSSOP | IC EEPROM 8KBIT I2C 400KHZ 8DIP |
| Package | -Reel® | Tube |
| Series | - | - |
| Voltage - Supply | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 8-TSSOP (0.173\", 4.40mm Width) | 8-DIP (0.300\", 7.62mm) |
| Supplier Device Package | 8-TSSOP | 8-PDIP |
| Memory Size | 4Kb (256 x 16) | 8Kb (256 x 8 x 4) |
| Technology | EEPROM | EEPROM |
| Memory Type | Non-Volatile | Non-Volatile |
| Clock Frequency | 2 MHz | 400 kHz |
| Access Time | - | 900 ns |
| Memory Format | EEPROM | EEPROM |
| Write Cycle Time - Word, Page | 6ms | 5ms |
| Memory Interface | SPI | I²C |
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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. 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. 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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4. What is ECC memory?
ECC (error correction code) memory detects and corrects single-bit errors in stored data, improving the reliability of memory and is commonly used in servers and data centers.
