| Part Number | AT27C2048-55PC | AT27C2048-55PU | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Memory | Memory | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Memory Type | Non-Volatile | Non-Volatile | 
| Memory Format | EPROM | EPROM | 
| Technology | EPROM - OTP | EPROM - OTP | 
| Memory Size | 2Mb (128K x 16) | 2Mb (128K x 16) | 
| Memory Interface | Parallel | Parallel | 
| Clock Frequency | - | - | 
| Write Cycle Time - Word, Page | - | - | 
| Access Time | 55 ns | 55 ns | 
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 
| Operating Temperature | 0°C ~ 70°C (TC) | -40°C ~ 85°C (TC) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | 40-DIP (0.600", 15.24mm) | 40-DIP (0.600", 15.24mm) | 
| Supplier Device Package | 40-PDIP | 40-PDIP |