The UPD424256LA-70 is a commercial temperature 256K x 8-bit fast page DRAM IC with a maximum operating temperature of 70 degrees Celsius. It has 20 terminals and a single port, with a maximum access time of 70 nanoseconds. The device operates on a supply voltage of 4.5 to 5.5 volts and is packaged in a 0.300 inch plastic SOJ-26/20 package. The IC has a memory capacity of 262144 words and 256000 words of code, with a dual terminal position. It is manufactured by NEC and is categorized as a commercial temperature DRAM.
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| Max Operating Temperature | 70 |
| Number of Terminals | 20 |
| Min Operating Temperature | 0 |
| Terminal Position | DUAL |
| Width | 7.57 |
| Length | 17.4 |
| Number of Functions | 1 |
| Temperature Grade | COMMERCIAL |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.5 |
| Supply Voltage-Min (Vsup) | 4.5 |
| Number of Words | 262144 |
| Number of Words Code | 256000 |
| Memory IC Type | FAST PAGE DRAM |
| Number of Ports | 1 |
| Access Time-Max | 70 |
| REACH | unknown |
| Military Spec | False |
