| PartNumber | XC17256ELPC20I | XC17256ELPC20C | XC17256ELPD8C |
| Description | IC PROM SER I-TEMP 256K 20-PLCC | IC PROM SER C-TEMP 256K 20-PLCC | IC 3V SER CFG PROM 256K 8-DIP |
| Manufacturer | Xilinx Inc. | Xilinx Inc. | Xilinx Inc. |
| Product Category | Memory - Configuration Proms for FPGAs | Memory - Configuration Proms for FPGAs | Memory - Configuration Proms for FPGA's |
| Series | - | - | - |
| Packaging | Tube | Tube | Tube |
| Package Case | 20-LCC (J-Lead) | 20-LCC (J-Lead) | 8-DIP (0.300", 7.62mm) |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Voltage Supply | 3 V ~ 3.6 V | 3 V ~ 3.6 V | 3 V ~ 3.6 V |
| Supplier Device Package | 20-PLCC (9x9) | 20-PLCC (9x9) | 8-PDIP |
| Memory Size | 256Kb | 256Kb | 256Kb |
| Programmable Type | OTP | OTP | OTP |