IC 256K X 4 FAST PAGE DRAM, 100 ns, DSO20, SOP-20, Dynamic RAM
| Parameter Name | Attribute value |
| Maker | Texas Instruments |
| Parts packaging code | SOIC |
| package instruction | SOJ, |
| Contacts | 20 |
| Reach Compliance Code | unknown |
| ECCN code | EAR99 |
| access mode | FAST PAGE |
| Maximum access time | 100 ns |
| Other features | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH |
| JESD-30 code | R-XDSO-J20 |
| JESD-609 code | e0 |
| length | 17.145 mm |
| memory density | 1048576 bit |
| Memory IC Type | FAST PAGE DRAM |
| memory width | 4 |
| Number of functions | 1 |
| Number of ports | 1 |
| Number of terminals | 20 |
| word count | 262144 words |
| character code | 256000 |
| Operating mode | ASYNCHRONOUS |
| Maximum operating temperature | 125 °C |
| Minimum operating temperature | -55 °C |
| organize | 256KX4 |
| Package body material | UNSPECIFIED |
| encapsulated code | SOJ |
| Package shape | RECTANGULAR |
| Package form | SMALL OUTLINE |
| Certification status | Not Qualified |
| Maximum seat height | 2.54 mm |
| Maximum supply voltage (Vsup) | 5.5 V |
| Minimum supply voltage (Vsup) | 4.5 V |
| Nominal supply voltage (Vsup) | 5 V |
| surface mount | YES |
| technology | CMOS |
| Temperature level | MILITARY |
| Terminal surface | TIN LEAD |
| Terminal form | J BEND |
| Terminal pitch | 1.27 mm |
| Terminal location | DUAL |
| width | 8.385 mm |
| Base Number Matches | 1 |
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