The UPD424256C-12 is a commercial-grade, 20-pin DIP packaged, 256K x 8-bit fast page DRAM IC from NEC. It operates within a temperature range of 0 to 70 degrees Celsius and has a maximum access time of 120 nanoseconds. The device has a single port and 262144 words of memory, with 256000 words of code memory. It is designed for use with a 5V supply voltage, with a maximum voltage of 5.5V and a minimum voltage of 4.5V.
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NEC UPD424256C-12 technical specifications.
| Max Operating Temperature | 70 |
| Number of Terminals | 20 |
| Min Operating Temperature | 0 |
| Terminal Position | DUAL |
| Width | 7.62 |
| 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 | 120 |
| REACH | unknown |
| Military Spec | False |
No datasheet is available for this part.
