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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. |  HCT257 | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | Texas Instruments | TI | - | - | - | 278 Kb |
| 2. | 74ACT257 | Quad 2−Input Multiplexer with 3−State Outputs | ON Semiconductor | ONSEMI | - | - | - | 188 Kb |
| 3. | 74ACT257 | QUAD 2 CHANNEL MULTIPLEXER 3-STATE | STMicroelectronics | STMICROELECTRONICS | - | - | - | 87 Kb |
| 4. | 74ACT257 | QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | STMicroelectronics | STMICROELECTRONICS | - | - | - | 200 Kb |
| 5. | 74HCT257 | Quad 2-input multiplexer; 3-state | NXP Semiconductors | NXP | - | - | - | 166 Kb |
| 6. | 74AHCT257 | Quad 2-input multiplexer; 3-state | NXP Semiconductors | PHILIPS | - | - | - | 109 Kb |
| 7. | M54HCT257 | HCT257 QUAD 2 CHANNEL MULTIPLEXER 3-STATE HCT258 QUAD 2 CHANNEL MULTIPLEXER 3-STATE, INVERTING | STMicroelectronics | STMICROELECTRONICS | - | - | - | 254 Kb |
| 8. | M74HCT257 | HCT257 QUAD 2 CHANNEL MULTIPLEXER 3-STATE HCT258 QUAD 2 CHANNEL MULTIPLEXER 3-STATE, INVERTING | STMicroelectronics | STMICROELECTRONICS | - | - | - | 254 Kb |
| 9. | CD54ACT257 | Quad 2-Input Multiplexer Three-State, Non-Inverting | Intersil Corporation | INTERSIL | - | - | - | 12 Kb |
| 10. | CD54ACT257 | Quad 2-Input Multiplexer with Three-State Outputs | Texas Instruments | TI | - | - | - | 481 Kb |
| 11. | CD54ACT257 | Quad 2-Input Multiplexer with Three-State Outputs | Texas Instruments | TI | - | - | - | 295 Kb |
| 12. | CD54HCT257 | High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs | Texas Instruments | TI | - | - | - | 279 Kb |
| 13. | CD74ACT257 | Quad 2-Input Multiplexer with Three-State Outputs | Texas Instruments | TI | - | - | - | 47 Kb |
| 14. | CD74ACT257 | Quad 2-Input Multiplexer with Three-State Outputs | Texas Instruments | TI | - | - | - | 295 Kb |
| 15. | CD74ACT257 | Quad 2-Input Multiplexer with Three-State Outputs | Texas Instruments | TI | - | - | - | 481 Kb |
| 16. | CD74HCT257 | High Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs | Texas Instruments | TI | - | - | - | 49 Kb |
| 17. | CD74HCT257 | High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs | Texas Instruments | TI | - | - | - | 279 Kb |
| 18. | IN74ACT257 | QUAD 2-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS | Integral Corp. | INTEGRAL | - | - | - | 179 Kb |
| 19. | IN74ACT257 | Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS | IK Semicon Co., Ltd | IKSEMICON | - | - | - | 197 Kb |
| 20. | KK74ACT257 | Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS | KODENSHI KOREA CORP. | KODENSHI | - | - | - | 207 Kb |
