| 139681 | 74HC20D-Q100 | Dual 4-input NAND gate | Nexperia |
| 139682 | 74HC20D-Q100 | Dual 4-input NAND gate | NXP Semiconductors |
| 139683 | 74HC20DB | Dual 4-input NAND gate | Nexperia |
| 139684 | 74HC20DB | Dual 4-input NAND gate | NXP Semiconductors |
| 139685 | 74HC20DB | 74HC/HCT20; Dual 4-input NAND gate | Philips |
| 139686 | 74HC20N | Dual 4-input NAND gate | NXP Semiconductors |
| 139687 | 74HC20N | 74HC/HCT20; Dual 4-input NAND gate | Philips |
| 139688 | 74HC20PW | Dual 4-input NAND gate | Nexperia |
| 139689 | 74HC20PW | Dual 4-input NAND gate | NXP Semiconductors |
| 139690 | 74HC20PW | 74HC/HCT20; Dual 4-input NAND gate | Philips |
| 139691 | 74HC20PW-Q100 | Dual 4-input NAND gate | Nexperia |
| 139692 | 74HC20PW-Q100 | Dual 4-input NAND gate | NXP Semiconductors |
| 139693 | 74HC21 | Dual 4-input AND gate | Philips |
| 139694 | 74HC21D | Dual 4-input AND gate | Nexperia |
| 139695 | 74HC21D | Dual 4-input AND gate | NXP Semiconductors |
| 139696 | 74HC21DB | Dual 4-input AND gate | Nexperia |
| 139697 | 74HC21DB | Dual 4-input AND gate | NXP Semiconductors |
| 139698 | 74HC21N | Dual 4-input AND gate | NXP Semiconductors |
| 139699 | 74HC21PW | Dual 4-input AND gate | Nexperia |
|
| 139700 | 74HC21PW | Dual 4-input AND gate | NXP Semiconductors |
| 139701 | 74HC221 | Dual non-retriggerable monostable multivibrator with reset | Philips |
| 139702 | 74HC221D | Dual non-retriggerable monostable multivibrator with reset | NXP Semiconductors |
| 139703 | 74HC221D | 74HC/HCT221; Dual non-retriggerable monostable multivibrator with reset | Philips |
| 139704 | 74HC221DB | Dual non-retriggerable monostable multivibrator with reset | NXP Semiconductors |
| 139705 | 74HC221DB | 74HC/HCT221; Dual non-retriggerable monostable multivibrator with reset | Philips |
| 139706 | 74HC221N | Dual non-retriggerable monostable multivibrator with reset | NXP Semiconductors |
| 139707 | 74HC221N | 74HC/HCT221; Dual non-retriggerable monostable multivibrator with reset | Philips |
| 139708 | 74HC221U | Dual non-retriggerable monostable multivibrator with reset | Philips |
| 139709 | 74HC237 | 3-to-8 line decoder/demultiplexer with address latches | Philips |
| 139710 | 74HC237D | 3-to-8 line decoder, demultiplexer with address latches | Nexperia |
| 139711 | 74HC237D | 3-to-8 line decoder, demultiplexer with address latches | NXP Semiconductors |
| 139712 | 74HC237D | 74HC237; 3-to-8 line decoder, demultiplexer with address latches | Philips |
| 139713 | 74HC237D-Q100 | 3-to-8 line decoder, demultiplexer with address latches | Nexperia |
| 139714 | 74HC237D-Q100 | 3-to-8 line decoder, demultiplexer with address latches | NXP Semiconductors |
| 139715 | 74HC237DB | 3-to-8 line decoder, demultiplexer with address latches | Nexperia |
| 139716 | 74HC237DB | 3-to-8 line decoder, demultiplexer with address latches | NXP Semiconductors |
| 139717 | 74HC237DB | 74HC237; 3-to-8 line decoder, demultiplexer with address latches | Philips |
| 139718 | 74HC237N | 3-to-8 line decoder, demultiplexer with address latches | NXP Semiconductors |
| 139719 | 74HC237N | 74HC237; 3-to-8 line decoder, demultiplexer with address latches | Philips |
| 139720 | 74HC237U | 3-to-8 line decoder/demultiplexer with address latches | Philips |
