W632GG6MB-12 vs AT28C256F-15SU-T
| Part Number |
|
|
| Category | General Memory | General Memory |
| Manufacturer | Winbond Electronics | Microchip Technology |
| Description | IC DRAM 2GBIT PARALLEL 96VFBGA | IC EEPROM 256KBIT PAR 28SOIC |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Voltage - Supply | 1.425V ~ 1.575V | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 95°C (TC) | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 96-VFBGA | 28-SOIC (0.295\", 7.50mm Width) |
| Supplier Device Package | 96-VFBGA (7.5x13) | 28-SOIC |
| Memory Size | 2Gb (128M x 16) | 256Kb (32K x 8) |
| Technology | SDRAM - DDR3 | EEPROM |
| Memory Type | Volatile | Non-Volatile |
| Clock Frequency | 800 MHz | - |
| Access Time | 20 ns | 150 ns |
| Memory Format | DRAM | EEPROM |
| Write Cycle Time - Word, Page | - | 3ms |
| Memory Interface | Parallel | Parallel |
-
1. What are volatile and non-volatile memory?
Volatile memory loses data when power is off, such as RAM; non-volatile memory retains data after power is off, such as ROM and flash memory.
-
2. 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.
-
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.
-
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.
