Standard SRAM, 1KX4, 35ns, CMOS, CDIP18,
| Parameter Name | Attribute value |
| Is it Rohs certified? | incompatible |
| Maker | Inmos Corporation |
| Reach Compliance Code | unknown |
| Maximum access time | 35 ns |
| I/O type | COMMON |
| JESD-30 code | R-XDIP-T18 |
| JESD-609 code | e0 |
| memory density | 4096 bit |
| Memory IC Type | STANDARD SRAM |
| memory width | 4 |
| Number of terminals | 18 |
| word count | 1024 words |
| character code | 1000 |
| Operating mode | ASYNCHRONOUS |
| Maximum operating temperature | 125 °C |
| Minimum operating temperature | -55 °C |
| organize | 1KX4 |
| Output characteristics | 3-STATE |
| Package body material | CERAMIC |
| encapsulated code | DIP |
| Encapsulate equivalent code | DIP18,.3 |
| 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 | 0.005 A |
| Minimum standby current | 4.5 V |
| Maximum slew rate | 0.11 mA |
| Nominal supply voltage (Vsup) | 5 V |
| surface mount | NO |
| technology | CMOS |
| Temperature level | MILITARY |
| Terminal surface | Tin/Lead (Sn/Pb) |
| Terminal form | THROUGH-HOLE |
| Terminal pitch | 2.54 mm |
| Terminal location | DUAL |

| IMS1223S-35M | IMS1223S-45M | IMS1223A-35M | IMS1223A-45M | |
|---|---|---|---|---|
| Description | Standard SRAM, 1KX4, 35ns, CMOS, CDIP18, | Standard SRAM, 1KX4, 45ns, CMOS, CDIP18, | Standard SRAM, 1KX4, 35ns, CMOS, CDFP18, | Standard SRAM, 1KX4, 45ns, CMOS, CDFP18, |
| Is it Rohs certified? | incompatible | incompatible | incompatible | incompatible |
| Maker | Inmos Corporation | Inmos Corporation | Inmos Corporation | Inmos Corporation |
| Reach Compliance Code | unknown | unknown | unknown | unknown |
| Maximum access time | 35 ns | 45 ns | 35 ns | 45 ns |
| I/O type | COMMON | COMMON | COMMON | COMMON |
| JESD-30 code | R-XDIP-T18 | R-XDIP-T18 | R-XDFP-F18 | R-XDFP-F18 |
| JESD-609 code | e0 | e0 | e0 | e0 |
| memory density | 4096 bit | 4096 bit | 4096 bit | 4096 bit |
| Memory IC Type | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM | STANDARD SRAM |
| memory width | 4 | 4 | 4 | 4 |
| Number of terminals | 18 | 18 | 18 | 18 |
| word count | 1024 words | 1024 words | 1024 words | 1024 words |
| character code | 1000 | 1000 | 1000 | 1000 |
| Operating mode | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS |
| Maximum operating temperature | 125 °C | 125 °C | 125 °C | 125 °C |
| Minimum operating temperature | -55 °C | -55 °C | -55 °C | -55 °C |
| organize | 1KX4 | 1KX4 | 1KX4 | 1KX4 |
| Output characteristics | 3-STATE | 3-STATE | 3-STATE | 3-STATE |
| Package body material | CERAMIC | CERAMIC | CERAMIC | CERAMIC |
| encapsulated code | DIP | DIP | DFP | DFP |
| Encapsulate equivalent code | DIP18,.3 | DIP18,.3 | FL18,.3 | FL18,.3 |
| Package shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package form | IN-LINE | IN-LINE | FLATPACK | FLATPACK |
| Parallel/Serial | PARALLEL | PARALLEL | PARALLEL | PARALLEL |
| power supply | 5 V | 5 V | 5 V | 5 V |
| Certification status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Filter level | 38535Q/M;38534H;883B | 38535Q/M;38534H;883B | 38535Q/M;38534H;883B | 38535Q/M;38534H;883B |
| Maximum standby current | 0.005 A | 0.005 A | 0.005 A | 0.005 A |
| Minimum standby current | 4.5 V | 4.5 V | 4.5 V | 4.5 V |
| Maximum slew rate | 0.11 mA | 0.11 mA | 0.11 mA | 0.11 mA |
| Nominal supply voltage (Vsup) | 5 V | 5 V | 5 V | 5 V |
| surface mount | NO | NO | YES | YES |
| technology | CMOS | CMOS | CMOS | CMOS |
| Temperature level | MILITARY | MILITARY | MILITARY | MILITARY |
| Terminal surface | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) |
| Terminal form | THROUGH-HOLE | THROUGH-HOLE | FLAT | FLAT |
| Terminal pitch | 2.54 mm | 2.54 mm | 1.27 mm | 1.27 mm |
| Terminal location | DUAL | DUAL | DUAL | DUAL |