BQ4010YMA-85 vs BQ4010YMA-70N
| 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 | Tape & Reel (TR) | 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 | 85 ns | 70 ns |
| Memory Format | NVSRAM | NVSRAM |
| Write Cycle Time - Word, Page | 85ns | 70ns |
| Memory Interface | Parallel | Parallel |
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1. What is the difference between cache and RAM?
Cache is a high-speed memory between the CPU and the main memory, which is used to temporarily store data and instructions commonly used by the CPU to speed up the system. RAM is the main storage of the system, which is used to store data for applications and operating systems.
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2. What is double data rate (DDR) memory?
DDR memory is a RAM technology that can transmit data at both the rising and falling edges of the clock signal to increase the data transmission speed. There are multiple generations of DDR, such as DDR3, DDR4, DDR5, etc., each generation has higher speed and capacity and lower power consumption.
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3. 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.
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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.
