| 140521 | 74HC4046APW | Phase-locked-loop with VCO | NXP Semiconductors |
| 140522 | 74HC4046APW | 74HC/HCT4046A; Phase-locked-loop with VCO | Philips |
| 140523 | 74HC4046AU | Phase-locked-loop with VCO | Philips |
| 140524 | 74HC4049 | Hex inverting high-to-low level shifter | Philips |
| 140525 | 74HC4049D | Hex inverting HIGH-to-LOW level shifter | Nexperia |
| 140526 | 74HC4049D | Hex inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140527 | 74HC4049D | 74HC4049; Hex inverting high-to-low level shifter | Philips |
| 140528 | 74HC4049DB | Hex inverting HIGH-to-LOW level shifter | Nexperia |
| 140529 | 74HC4049DB | Hex inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140530 | 74HC4049DB | 74HC4049; Hex inverting high-to-low level shifter | Philips |
| 140531 | 74HC4049N | Hex inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140532 | 74HC4049N | 74HC4049; Hex inverting high-to-low level shifter | Philips |
| 140533 | 74HC4049NB | Hex inverting high-to-low level shifter | Philips |
| 140534 | 74HC4049PW | Hex inverting HIGH-to-LOW level shifter | Nexperia |
| 140535 | 74HC4049PW | Hex inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140536 | 74HC4049U | Hex inverting high-to-low level shifter | Philips |
| 140537 | 74HC4050 | Hex high-to-low level shifter | Philips |
| 140538 | 74HC4050D | Hex non-inverting HIGH-to-LOW level shifter | Nexperia |
| 140539 | 74HC4050D | Hex non-inverting HIGH-to-LOW level shifter | NXP Semiconductors |
|
| 140540 | 74HC4050D | 74HC4050; Hex high-to-low level shifter | Philips |
| 140541 | 74HC4050D-Q100 | Hex non-inverting HIGH-to-LOW level shifter | Nexperia |
| 140542 | 74HC4050D-Q100 | Hex non-inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140543 | 74HC4050DB | Hex non-inverting HIGH-to-LOW level shifter | Nexperia |
| 140544 | 74HC4050DB | Hex non-inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140545 | 74HC4050DB | 74HC4050; Hex high-to-low level shifter | Philips |
| 140546 | 74HC4050N | Hex non-inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140547 | 74HC4050N | 74HC4050; Hex high-to-low level shifter | Philips |
| 140548 | 74HC4050PW | Hex non-inverting HIGH-to-LOW level shifter | Nexperia |
| 140549 | 74HC4050PW | Hex non-inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140550 | 74HC4050PW | 74HC4050; Hex high-to-low level shifter | Philips |
| 140551 | 74HC4050PW-Q100 | Hex non-inverting HIGH-to-LOW level shifter | Nexperia |
| 140552 | 74HC4050PW-Q100 | Hex non-inverting HIGH-to-LOW level shifter | NXP Semiconductors |
| 140553 | 74HC4050U | Hex high-to-low level shifter | Philips |
| 140554 | 74HC4051 | 8-channel analog multiplexer/demultiplexer | Philips |
| 140555 | 74HC4051 | High Speed CMOS Logic Analog Multiplexers/Demultiplexers | Texas Instruments |
| 140556 | 74HC4051BQ | 8-channel analog multiplexer/demultiplexer | Nexperia |
| 140557 | 74HC4051BQ | 8-channel analog multiplexer/demultiplexer | NXP Semiconductors |
| 140558 | 74HC4051BQ-Q100 | 8-channel analog multiplexer/demultiplexer | Nexperia |
| 140559 | 74HC4051BQ-Q100 | 8-channel analog multiplexer/demultiplexer | NXP Semiconductors |
| 140560 | 74HC4051D | 8-channel analog multiplexer/demultiplexer | Nexperia |
