| 131721 | 74ACT245T | OCTAL BUS TRANSCEIVER 3-STATE | ST Microelectronics |
| 131722 | 74ACT245TTR | OCTAL BUS TRANSCEIVER (3-STATE) | SGS Thomson Microelectronics |
| 131723 | 74ACT245TTR | OCTAL BUS TRANSCEIVER (3-STATE) | ST Microelectronics |
| 131724 | 74ACT251 | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131725 | 74ACT251 | 8-Input Multiplexer with TRI-STATE Output | National Semiconductor |
| 131726 | 74ACT251CW | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131727 | 74ACT251MTC | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131728 | 74ACT251MTCX | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131729 | 74ACT251PC | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131730 | 74ACT251SC | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131731 | 74ACT251SCX | 8-Input Multiplexer with 3-STATE Output | Fairchild Semiconductor |
| 131732 | 74ACT253 | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131733 | 74ACT253 | Dual 4-Input Multiplexer with TRI-STATE Outputs | National Semiconductor |
| 131734 | 74ACT253CW | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131735 | 74ACT253MTC | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131736 | 74ACT253MTCX | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131737 | 74ACT253PC | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131738 | 74ACT253SC | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131739 | 74ACT253SCX | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
|
| 131740 | 74ACT253SJ | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131741 | 74ACT253SJX | Dual 4-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131742 | 74ACT257 | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131743 | 74ACT257 | Quad 2-Input Multiplexer with TRI-STATE Outputs | National Semiconductor |
| 131744 | 74ACT257 | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | SGS Thomson Microelectronics |
| 131745 | 74ACT257 | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | ST Microelectronics |
| 131746 | 74ACT257B | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | SGS Thomson Microelectronics |
| 131747 | 74ACT257B | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | ST Microelectronics |
| 131748 | 74ACT257CW | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131749 | 74ACT257M | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | SGS Thomson Microelectronics |
| 131750 | 74ACT257M | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | ST Microelectronics |
| 131751 | 74ACT257MTC | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131752 | 74ACT257MTCX | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131753 | 74ACT257MTR | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | SGS Thomson Microelectronics |
| 131754 | 74ACT257MTR | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | ST Microelectronics |
| 131755 | 74ACT257PC | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131756 | 74ACT257SC | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131757 | 74ACT257SCX | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131758 | 74ACT257SJ | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131759 | 74ACT257SJX | Quad 2-Input Multiplexer with 3-STATE Outputs | Fairchild Semiconductor |
| 131760 | 74ACT257TTR | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | SGS Thomson Microelectronics |
