CMOS OTP ROM memory IC, 32K x 8 bit organization, offering a maximum access time of 45ns. Features a parallel interface with common I/O. Operates with a supply voltage range of 4.5V to 5.5V, with a nominal of 5V. Industrial temperature grade, suitable for operation between -40°C and 85°C. Housed in a 28-terminal PDIP package.
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Atmel AT27C256R-45PU technical specifications.
| Max Operating Temperature | 85 |
| Number of Terminals | 28 |
| Min Operating Temperature | -40 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-PDIP-T28 |
| Width | 15.24 |
| Length | 37.0205 |
| Pin Count | 28 |
| Number of Functions | 1 |
| Temperature Grade | INDUSTRIAL |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.5 |
| Supply Voltage-Min (Vsup) | 4.5 |
| Supply Current-Max | 0.02 |
| Number of Words | 32768 |
| Number of Words Code | 32000 |
| Memory IC Type | OTP ROM |
| Parallel/Serial | PARALLEL |
| Standby Current-Max | 0.0001 |
| Access Time-Max | 45 |
| I/O Type | COMMON |
| RoHS | Yes |
| Eccn Code | EAR99 |
| Lead Free | Yes |
| HTS Code | 8542.32.00.61 |
| REACH | unknown |
| Military Spec | False |
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