The M27C256B-20F1 is a 28-pin commercial temperature UVPROM from Stmicroelectronics. It features a 5V supply voltage with a maximum rating of 5.5V and a minimum rating of 4.5V. The device has a maximum supply current of 30uA and a maximum standby current of 0.1uA. It offers a maximum access time of 150ns and a maximum number of words of 32,768. The M27C256B-20F1 is packaged in a 0.280 inch, lead-free, ceramic, windowed, Frit-sealed DIP-28.
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Stmicroelectronics M27C256B-20F1 technical specifications.
| Max Operating Temperature | 70 |
| Number of Terminals | 28 |
| Min Operating Temperature | 0 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-CDIP-T28 |
| Width | 15.24 |
| Length | 36.92 |
| Pin Count | 28 |
| Number of Functions | 1 |
| Temperature Grade | COMMERCIAL |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.5 |
| Supply Voltage-Min (Vsup) | 4.5 |
| Supply Current-Max | 0.03 |
| Number of Words | 32768 |
| Number of Words Code | 32000 |
| Memory IC Type | UVPROM |
| Parallel/Serial | PARALLEL |
| Standby Current-Max | 0.0001 |
| Access Time-Max | 150 |
| I/O Type | COMMON |
| RoHS | No |
| Eccn Code | EAR99 |
| Lead Free | No |
| HTS Code | 8542.32.00.61 |
| REACH | not_compliant |
| Military Spec | False |
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