This 28-pin DIP28 UVPROM from National Semiconductor features a maximum operating temperature of 125 degrees Celsius and a minimum operating temperature of -55 degrees Celsius. It has a supply voltage range of 4.5 to 5.5 volts and a maximum supply current of 0.02 amps. The device has a memory capacity of 32,000 words and an access time of up to 350 nanoseconds. It is designed for use in military-grade applications and has a low standby current of 0.0001 amps.
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National Semiconductor NMC27C256QM350 technical specifications.
| Max Operating Temperature | 125 |
| Number of Terminals | 28 |
| Min Operating Temperature | -55 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-GDIP-T28 |
| Width | 15.24 |
| Number of Functions | 1 |
| Temperature Grade | MILITARY |
| 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 | UVPROM |
| Parallel/Serial | PARALLEL |
| Standby Current-Max | 0.0001 |
| Access Time-Max | 350 |
| I/O Type | COMMON |
| RoHS | No |
| Eccn Code | EAR99 |
| HTS Code | 8542.32.00.61 |
| REACH | unknown |
| Military Spec | False |
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