Standard SRAM, 256KX4, 35ns, CMOS, CDIP28,
| Parameter Name | Attribute value |
| Maker | White Electronic Designs Corporation |
| package instruction | DIP, DIP28,.4 |
| Reach Compliance Code | unknown |
| Maximum access time | 35 ns |
| I/O type | COMMON |
| JESD-30 code | R-XDIP-T28 |
| memory density | 1048576 bit |
| Memory IC Type | STANDARD SRAM |
| memory width | 4 |
| Number of terminals | 28 |
| word count | 262144 words |
| character code | 256000 |
| Operating mode | ASYNCHRONOUS |
| Maximum operating temperature | 125 °C |
| Minimum operating temperature | -55 °C |
| organize | 256KX4 |
| Output characteristics | 3-STATE |
| Package body material | CERAMIC |
| encapsulated code | DIP |
| Encapsulate equivalent code | DIP28,.4 |
| Package shape | RECTANGULAR |
| Package form | IN-LINE |
| Parallel/Serial | PARALLEL |
| power supply | 5 V |
| Certification status | Not Qualified |
| Filter level | 38535Q/M;38534H;883B |
| Maximum standby current | 0.00075 A |
| Minimum standby current | 2 V |
| Maximum slew rate | 0.18 mA |
| Nominal supply voltage (Vsup) | 5 V |
| surface mount | NO |
| technology | CMOS |
| Temperature level | MILITARY |
| Terminal form | THROUGH-HOLE |
| Terminal pitch | 2.54 mm |
| Terminal location | DUAL |
| Base Number Matches | 1 |
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