| 174241 | 74OL60003SD | 6-Pin DIP LSTTL to TTL Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174242 | 74OL6000S | 6-Pin DIP LSTTL to TTL Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174243 | 74OL6000SD | 6-Pin DIP LSTTL to TTL Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174244 | 74OL6000W | 6-Pin DIP LSTTL to TTL Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174245 | 74OL6001 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS | Fairchild Semiconductor |
| 174246 | 74OL6001 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS | QT Optoelectronics |
| 174247 | 74OL6001300 | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174248 | 74OL6001300W | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174249 | 74OL60013S | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174250 | 74OL60013SD | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174251 | 74OL6001S | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174252 | 74OL6001SD | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174253 | 74OL6001W | 6-Pin DIP LSTTL to TTL Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174254 | 74OL6010 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS | Fairchild Semiconductor |
| 174255 | 74OL6010 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS | QT Optoelectronics |
| 174256 | 74OL6010300 | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174257 | 74OL6010300W | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174258 | 74OL60103S | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174259 | 74OL60103SD | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
|
| 174260 | 74OL6010S | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174261 | 74OL6010SD | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174262 | 74OL6010W | 6-pin DIP LSTTL to CMOS Buffer High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174263 | 74OL6011 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS | Fairchild Semiconductor |
| 174264 | 74OL6011 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS | QT Optoelectronics |
| 174265 | 74OL6011300 | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174266 | 74OL6011300W | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174267 | 74OL60113S | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174268 | 74OL60113SD | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174269 | 74OL6011S | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174270 | 74OL6011SD | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174271 | 74OL6011W | 6-pin DIP LSTTL to CMOS Inverter High-Speed Logic-To-Logic Output Optocoupler | Fairchild Semiconductor |
| 174272 | 74S134 | 12-INPUT POSITIVE-NAND GATES WITH 3-STATE OUTPUTS | Fairchild Semiconductor |
| 174273 | 74S134 | 12-INPUT POSITIVE-NAND GATES WITH 3-STATE OUTPUTS | Signetics |
| 174274 | 74S135 | Quad Exclusive OR/NOR Gate | Fairchild Semiconductor |
| 174275 | 74S135 | Quad Exclusive OR/NOR Gate | Signetics |
| 174276 | 74S135DC | QUAD EXCLUSIVE-OR / NOR GATE | Unknow |
| 174277 | 74S135FC | QUAD EXCLUSIVE-OR / NOR GATE | Unknow |
| 174278 | 74S135PC | QUAD EXCLUSIVE-OR / NOR GATE | Unknow |
| 174279 | 74S189DC | V(cc): +5.0V; 64-bit random access memory (with 3-state outputs) | Fairchild Semiconductor |
| 174280 | 74S189DC | 64-BIT RANDOM ACCESS MEMORY(With 3-State Outputs) | Unknow |
