| Part Number | AT45D021-TI | AT45DB021-TI | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Memory | Memory | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Memory Type | Non-Volatile | Non-Volatile | 
| Memory Format | Flash | Flash | 
| Technology | Flash | Flash | 
| Memory Size | 2Mb (264 Bytes x 1024 pages) | 2Mb (264 Bytes x 1024 pages) | 
| Memory Interface | SPI | SPI | 
| Clock Frequency | 10 MHz | 5 MHz | 
| Write Cycle Time - Word, Page | 14ms | 14ms | 
| Access Time | - | - | 
| Voltage - Supply | 4.5V ~ 5.5V | 2.7V ~ 3.6V | 
| Operating Temperature | -40°C ~ 85°C (TC) | -40°C ~ 85°C (TC) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 28-TSSOP (0.465", 11.80mm Width) | 28-TSSOP (0.465", 11.80mm Width) | 
| Supplier Device Package | 28-TSOP | 28-TSOP |