Line Driver/Receiver, 2 Driver, TTL, CDIP8,
| Parameter Name | Attribute value |
| Is it Rohs certified? | incompatible |
| Maker | Fairchild |
| package instruction | DIP, DIP8,.3 |
| Reach Compliance Code | compliant |
| Differential output | YES |
| Number of drives | 2 |
| High level input current maximum value | 0.000025 A |
| JESD-30 code | R-XDIP-T8 |
| JESD-609 code | e0 |
| Number of terminals | 8 |
| Maximum operating temperature | 125 °C |
| Minimum operating temperature | -55 °C |
| Minimum output swing | 2 V |
| Package body material | CERAMIC |
| encapsulated code | DIP |
| Encapsulate equivalent code | DIP8,.3 |
| Package shape | RECTANGULAR |
| Package form | IN-LINE |
| power supply | 5 V |
| Certification status | Not Qualified |
| Nominal supply voltage | 5 V |
| surface mount | NO |
| technology | TTL |
| Temperature level | MILITARY |
| Terminal surface | Tin/Lead (Sn/Pb) |
| Terminal form | THROUGH-HOLE |
| Terminal pitch | 2.54 mm |
| Terminal location | DUAL |
| maximum transmission delay | 20 ns |
| Base Number Matches | 1 |

| UA9638RM | UA9638RC | UA9638SC | UA9638TC | |
|---|---|---|---|---|
| Description | Line Driver/Receiver, 2 Driver, TTL, CDIP8, | Line Driver/Receiver, 2 Driver, TTL, CDIP8, | Line Driver/Receiver, 2 Driver, TTL, PDSO8, | Line Driver/Receiver, 2 Driver, TTL, PDIP8, |
| Is it Rohs certified? | incompatible | incompatible | incompatible | incompatible |
| Maker | Fairchild | Fairchild | Fairchild | Fairchild |
| package instruction | DIP, DIP8,.3 | DIP, DIP8,.3 | SOP, SOP8,.25 | DIP, DIP8,.3 |
| Reach Compliance Code | compliant | compliant | compliant | compliant |
| Differential output | YES | YES | YES | YES |
| Number of drives | 2 | 2 | 2 | 2 |
| High level input current maximum value | 0.000025 A | 0.000025 A | 0.000025 A | 0.000025 A |
| JESD-30 code | R-XDIP-T8 | R-XDIP-T8 | R-PDSO-G8 | R-PDIP-T8 |
| JESD-609 code | e0 | e0 | e0 | e0 |
| Number of terminals | 8 | 8 | 8 | 8 |
| Maximum operating temperature | 125 °C | 70 °C | 70 °C | 70 °C |
| Minimum output swing | 2 V | 2 V | 2 V | 2 V |
| Package body material | CERAMIC | CERAMIC | PLASTIC/EPOXY | PLASTIC/EPOXY |
| encapsulated code | DIP | DIP | SOP | DIP |
| Encapsulate equivalent code | DIP8,.3 | DIP8,.3 | SOP8,.25 | DIP8,.3 |
| Package shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package form | IN-LINE | IN-LINE | SMALL OUTLINE | IN-LINE |
| power supply | 5 V | 5 V | 5 V | 5 V |
| Certification status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Nominal supply voltage | 5 V | 5 V | 5 V | 5 V |
| surface mount | NO | NO | YES | NO |
| technology | TTL | TTL | TTL | TTL |
| Temperature level | MILITARY | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Terminal surface | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) |
| Terminal form | THROUGH-HOLE | THROUGH-HOLE | GULL WING | THROUGH-HOLE |
| Terminal pitch | 2.54 mm | 2.54 mm | 1.27 mm | 2.54 mm |
| Terminal location | DUAL | DUAL | DUAL | DUAL |
| maximum transmission delay | 20 ns | 20 ns | 20 ns | 20 ns |
| Base Number Matches | 1 | 1 | 1 | - |