IC 256 X 1 STANDARD SRAM, 580 ns, PDIP16, Static RAM
| Parameter Name | Attribute value |
| Maker | NXP |
| package instruction | DIP, |
| Reach Compliance Code | unknown |
| ECCN code | EAR99 |
| Maximum access time | 580 ns |
| JESD-30 code | R-PDIP-T16 |
| length | 21.6 mm |
| memory density | 256 bit |
| Memory IC Type | STANDARD SRAM |
| memory width | 1 |
| Number of functions | 1 |
| Number of ports | 1 |
| Number of terminals | 16 |
| word count | 256 words |
| character code | 256 |
| Operating mode | ASYNCHRONOUS |
| Maximum operating temperature | 85 °C |
| Minimum operating temperature | -40 °C |
| organize | 256X1 |
| Output characteristics | 3-STATE |
| Exportable | NO |
| Package body material | PLASTIC/EPOXY |
| encapsulated code | DIP |
| Package shape | RECTANGULAR |
| Package form | IN-LINE |
| Parallel/Serial | PARALLEL |
| Certification status | Not Qualified |
| Maximum seat height | 4.7 mm |
| Minimum standby current | 3 V |
| Maximum supply voltage (Vsup) | 15 V |
| Minimum supply voltage (Vsup) | 3 V |
| Nominal supply voltage (Vsup) | 5 V |
| surface mount | NO |
| technology | CMOS |
| Temperature level | INDUSTRIAL |
| Terminal form | THROUGH-HOLE |
| Terminal pitch | 2.54 mm |
| Terminal location | DUAL |
| width | 7.62 mm |
| Base Number Matches | 1 |
| HEF4720BPN | HEF4720BTD-T | HEF4720BTD | HEF4720BDF | HEF4720BT | HEF4720VTD | HEF4720VT | HEF4720VTD-T | |
|---|---|---|---|---|---|---|---|---|
| Description | IC 256 X 1 STANDARD SRAM, 580 ns, PDIP16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, PDSO16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, PDSO16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, CDIP16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, PDSO16, PLASTIC, SO-16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, PDSO16, PLASTIC, SO-16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, PDSO16, PLASTIC, SO-16, Static RAM | IC 256 X 1 STANDARD SRAM, 580 ns, PDSO16, PLASTIC, SO-16, Static RAM |
| package instruction | DIP, | SOP, | SOP, | DIP, | PLASTIC, SO-16 | SOP, | PLASTIC, SO-16 | SOP, |
| Reach Compliance Code | unknown | unknown | unknown | unknown | compliant | unknown | compliant | unknown |
| ECCN code | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 |
| Maximum access time | 580 ns | 580 ns | 580 ns | 580 ns | 580 ns | 580 ns | 580 ns | 580 ns |
| JESD-30 code | R-PDIP-T16 | R-PDSO-G16 | R-PDSO-G16 | R-GDIP-T16 | R-PDSO-G16 | R-PDSO-G16 | R-PDSO-G16 | R-PDSO-G16 |
| memory density | 256 bit | 256 bit | 256 bit | 256 bit | 256 bit | 256 bit | 256 bit | 256 bit |
| Memory IC Type | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM |
| memory width | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of functions | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of ports | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of terminals | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| word count | 256 words | 256 words | 256 words | 256 words | 256 words | 256 words | 256 words | 256 words |
| character code | 256 | 256 | 256 | 256 | 256 | 256 | 256 | 256 |
| Operating mode | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS |
| Maximum operating temperature | 85 °C | 85 °C | 85 °C | 85 °C | 85 °C | 85 °C | 85 °C | 85 °C |
| Minimum operating temperature | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C |
| organize | 256X1 | 256X1 | 256X1 | 256X1 | 256X1 | 256X1 | 256X1 | 256X1 |
| Output characteristics | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE | 3-STATE |
| Exportable | NO | NO | NO | NO | NO | NO | NO | NO |
| Package body material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | CERAMIC, GLASS-SEALED | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| encapsulated code | DIP | SOP | SOP | DIP | SOP | SOP | SOP | SOP |
| Package shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package form | IN-LINE | SMALL OUTLINE | SMALL OUTLINE | IN-LINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Parallel/Serial | PARALLEL | PARALLEL | PARALLEL | PARALLEL | PARALLEL | PARALLEL | PARALLEL | PARALLEL |
| Certification status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Maximum seat height | 4.7 mm | 1.75 mm | 1.75 mm | 5.08 mm | 1.75 mm | 1.75 mm | 1.75 mm | 1.75 mm |
| Minimum standby current | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V |
| Maximum supply voltage (Vsup) | 15 V | 15 V | 15 V | 15 V | 15 V | 12.5 V | 15 V | 12.5 V |
| Minimum supply voltage (Vsup) | 3 V | 3 V | 3 V | 3 V | 3 V | 4.5 V | 3 V | 4.5 V |
| Nominal supply voltage (Vsup) | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| surface mount | NO | YES | YES | NO | YES | YES | YES | YES |
| technology | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Temperature level | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal form | THROUGH-HOLE | GULL WING | GULL WING | THROUGH-HOLE | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal pitch | 2.54 mm | 1.27 mm | 1.27 mm | 2.54 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal location | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL |
| width | 7.62 mm | 3.9 mm | 3.9 mm | 7.62 mm | 3.9 mm | 3.9 mm | 3.9 mm | 3.9 mm |
| Maker | NXP | NXP | NXP | NXP | NXP | - | - | NXP |
| length | 21.6 mm | 9.9 mm | 9.9 mm | - | 9.9 mm | 9.9 mm | 9.9 mm | 9.9 mm |
| Base Number Matches | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - |