SST39VF040-70-4I-WHE-T vs AT45DB161E-MHD-Y
| Part Number |
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| Category | General Memory | General Memory |
| Manufacturer | Microchip Technology | Microchip Technology |
| Description | IC FLASH 4MBIT PARALLEL 32TSOP | IC FLASH 16MBIT SPI 85MHZ 8UDFN |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | SST39 MPF™ | - |
| Voltage - Supply | 2.7V ~ 3.6V | 2.5V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 32-TFSOP (0.488\", 12.40mm Width) | 8-UDFN Exposed Pad |
| Supplier Device Package | 32-TSOP | 8-UDFN (5x6) |
| Memory Size | 4Mb (512K x 8) | 16Mb (528 Bytes x 4096 pages) |
| Technology | FLASH | FLASH |
| Memory Type | Non-Volatile | Non-Volatile |
| Clock Frequency | - | 85 MHz |
| Access Time | 70 ns | - |
| Memory Format | FLASH | FLASH |
| Write Cycle Time - Word, Page | 20µs | 8µs, 6ms |
| Memory Interface | Parallel | SPI |
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1. 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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2. 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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3. How to measure the data read and write speed of memory?
The read and write speed of memory is usually expressed in MB/s or GB/s, reflecting the amount of data it processes per second. The faster the speed, the higher the data transmission efficiency.
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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.
