BQ4010YMA-150 vs BQ4010YMA-85N
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC NVSRAM 64KBIT PARALLEL 28DIP | IC NVSRAM 64KBIT PARALLEL 28DIP |
| Package | Cut Tape (CT) | Cut Tape (CT) |
| Series | - | - |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 28-DIP Module (0.61\", 15.49mm) | 28-DIP Module (0.61\", 15.49mm) |
| Supplier Device Package | 28-DIP Module (18.42x37.72) | 28-DIP Module (18.42x37.72) |
| Memory Size | 64Kb (8K x 8) | 64Kb (8K x 8) |
| Technology | NVSRAM (Non-Volatile SRAM) | NVSRAM (Non-Volatile SRAM) |
| Memory Type | Non-Volatile | Non-Volatile |
| Clock Frequency | - | - |
| Access Time | 150 ns | 85 ns |
| Memory Format | NVSRAM | NVSRAM |
| Write Cycle Time - Word, Page | 150ns | 85ns |
| 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. 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 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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4. 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.
