Static Column DRAM, 256KX4, 35ns, BICMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28
| Parameter Name | Attribute value |
| Is it lead-free? | Contains lead |
| Is it Rohs certified? | incompatible |
| Maker | Hitachi （Renesas ） |
| Parts packaging code | SOJ |
| package instruction | SOJ, SOJ28,.34 |
| Contacts | 28 |
| Reach Compliance Code | unknown |
| ECCN code | EAR99 |
| access mode | STATIC COLUMN |
| Maximum access time | 35 ns |
| Other features | CE/AUTO REFRESH |
| I/O type | COMMON |
| JESD-30 code | R-PDSO-J28 |
| JESD-609 code | e0 |
| length | 18.17 mm |
| memory density | 1048576 bit |
| Memory IC Type | STATIC COLUMN DRAM |
| memory width | 4 |
| Number of functions | 1 |
| Number of ports | 1 |
| Number of terminals | 28 |
| word count | 262144 words |
| character code | 256000 |
| Operating mode | ASYNCHRONOUS |
| Maximum operating temperature | 70 °C |
| Minimum operating temperature | |
| organize | 256KX4 |
| Output characteristics | 3-STATE |
| Package body material | PLASTIC/EPOXY |
| encapsulated code | SOJ |
| Encapsulate equivalent code | SOJ28,.34 |
| Package shape | RECTANGULAR |
| Package form | SMALL OUTLINE |
| Peak Reflow Temperature (Celsius) | NOT SPECIFIED |
| power supply | 5 V |
| Certification status | Not Qualified |
| refresh cycle | 512 |
| Maximum seat height | 3.76 mm |
| Maximum slew rate | 0.25 mA |
| Maximum supply voltage (Vsup) | 5.25 V |
| Minimum supply voltage (Vsup) | 4.75 V |
| Nominal supply voltage (Vsup) | 5 V |
| surface mount | YES |
| technology | BICMOS |
| Temperature level | COMMERCIAL |
| Terminal surface | Tin/Lead (Sn/Pb) |
| Terminal form | J BEND |
| Terminal pitch | 1.27 mm |
| Terminal location | DUAL |
| Maximum time at peak reflow temperature | NOT SPECIFIED |
| width | 7.62 mm |
| HM574256JP-35R | HM574256ZP-40 | HM574256JP-45 | HM574256ZP-45 | HM574256JP-40 | HM574256ZP-35R | |
|---|---|---|---|---|---|---|
| Description | Static Column DRAM, 256KX4, 35ns, BICMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28 | Static Column DRAM, 256KX4, 40ns, BICMOS, PZIP28, 0.400 INCH, PLASTIC, ZIP-28 | Static Column DRAM, 256KX4, 45ns, BICMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28 | Static Column DRAM, 256KX4, 45ns, BICMOS, PZIP28, 0.400 INCH, PLASTIC, ZIP-28 | Static Column DRAM, 256KX4, 40ns, BICMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28 | Static Column DRAM, 256KX4, 35ns, BICMOS, PZIP28, 0.400 INCH, PLASTIC, ZIP-28 |
| Is it lead-free? | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead |
| Is it Rohs certified? | incompatible | incompatible | incompatible | incompatible | incompatible | incompatible |
| Maker | Hitachi （Renesas ） | Hitachi （Renesas ） | Hitachi （Renesas ） | Hitachi （Renesas ） | Hitachi （Renesas ） | Hitachi （Renesas ） |
| Parts packaging code | SOJ | ZIP | SOJ | ZIP | SOJ | ZIP |
| package instruction | SOJ, SOJ28,.34 | ZIP, ZIP28(UNSPEC) | SOJ, SOJ28,.34 | ZIP, ZIP28(UNSPEC) | SOJ, SOJ28,.34 | ZIP, ZIP28(UNSPEC) |
| Contacts | 28 | 28 | 28 | 28 | 28 | 28 |
| Reach Compliance Code | unknown | unknown | unknown | unknown | unknown | unknown |
| ECCN code | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 |
| access mode | STATIC COLUMN | STATIC COLUMN | STATIC COLUMN | STATIC COLUMN | STATIC COLUMN | STATIC COLUMN |
| Maximum access time | 35 ns | 40 ns | 45 ns | 45 ns | 40 ns | 35 ns |
| Other features | CE/AUTO REFRESH | CE/AUTO REFRESH | CE/AUTO REFRESH | CE/AUTO REFRESH | CE/AUTO REFRESH | CE/AUTO REFRESH |
| I/O type | COMMON | COMMON | COMMON | COMMON | COMMON | COMMON |
| JESD-30 code | R-PDSO-J28 | R-PZIP-T28 | R-PDSO-J28 | R-PZIP-T28 | R-PDSO-J28 | R-PZIP-T28 |
| JESD-609 code | e0 | e0 | e0 | e0 | e0 | e0 |
| length | 18.17 mm | 35.58 mm | 18.17 mm | 35.58 mm | 18.17 mm | 35.58 mm |
| memory density | 1048576 bit | 1048576 bit | 1048576 bit | 1048576 bit | 1048576 bit | 1048576 bit |
| Memory IC Type | STATIC COLUMN DRAM | STATIC COLUMN DRAM | STATIC COLUMN DRAM | STATIC COLUMN DRAM | STATIC COLUMN DRAM | STATIC COLUMN DRAM |
| memory width | 4 | 4 | 4 | 4 | 4 | 4 |
| Number of functions | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of ports | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of terminals | 28 | 28 | 28 | 28 | 28 | 28 |
| word count | 262144 words | 262144 words | 262144 words | 262144 words | 262144 words | 262144 words |
| character code | 256000 | 256000 | 256000 | 256000 | 256000 | 256000 |
| Operating mode | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS |
| Maximum operating temperature | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C |
| organize | 256KX4 | 256KX4 | 256KX4 | 256KX4 | 256KX4 | 256KX4 |
| Output characteristics | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE |
| Package body material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| encapsulated code | SOJ | ZIP | SOJ | ZIP | SOJ | ZIP |
| Encapsulate equivalent code | SOJ28,.34 | ZIP28(UNSPEC) | SOJ28,.34 | ZIP28(UNSPEC) | SOJ28,.34 | ZIP28(UNSPEC) |
| Package shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package form | SMALL OUTLINE | IN-LINE | SMALL OUTLINE | IN-LINE | SMALL OUTLINE | IN-LINE |
| Peak Reflow Temperature (Celsius) | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED |
| power supply | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Certification status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| refresh cycle | 512 | 512 | 512 | 512 | 512 | 512 |
| Maximum seat height | 3.76 mm | 10.16 mm | 3.76 mm | 10.16 mm | 3.76 mm | 10.16 mm |
| Maximum slew rate | 0.25 mA | 0.22 mA | 0.2 mA | 0.2 mA | 0.22 mA | 0.25 mA |
| Maximum supply voltage (Vsup) | 5.25 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.25 V |
| Minimum supply voltage (Vsup) | 4.75 V | 4.5 V | 4.5 V | 4.5 V | 4.5 V | 4.75 V |
| Nominal supply voltage (Vsup) | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| surface mount | YES | NO | YES | NO | YES | NO |
| technology | BICMOS | BICMOS | BICMOS | BICMOS | BICMOS | BICMOS |
| Temperature level | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Terminal surface | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) |
| Terminal form | J BEND | THROUGH-HOLE | J BEND | THROUGH-HOLE | J BEND | THROUGH-HOLE |
| Terminal pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal location | DUAL | ZIG-ZAG | DUAL | ZIG-ZAG | DUAL | ZIG-ZAG |
| Maximum time at peak reflow temperature | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED | NOT SPECIFIED |
| width | 7.62 mm | 2.85 mm | 7.62 mm | 2.85 mm | 7.62 mm | 2.85 mm |
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