| 667321 | HEF40373BU | Octal transparent latch with 3-state outputs | Philips |
| 667322 | HEF40374 | Octal D-type flip-flop with 3-state outputs | Philips |
| 667323 | HEF40374B | Octal D-type flip-flop with 3-state outputs | Philips |
| 667324 | HEF40374BD | Octal D-type flip-flop with 3-state outputs | Philips |
| 667325 | HEF40374BDB | Octal D-type flip-flop with 3-state outputs | Philips |
| 667326 | HEF40374BF | Octal D-type flip-flop with 3-state outputs | Philips |
| 667327 | HEF40374BN | Octal D-type flip-flop with 3-state outputs | Philips |
| 667328 | HEF40374BP | Octal D-type flip-flop with 3-state outputs | NXP Semiconductors |
| 667329 | HEF40374BP | Octal D-type flip-flop with 3-state outputs | Philips |
| 667330 | HEF40374BPB | Octal D-type flip-flop with 3-state outputs | Philips |
| 667331 | HEF40374BT | Octal D-type flip-flop with 3-state outputs | NXP Semiconductors |
| 667332 | HEF40374BT | Octal D-type flip-flop with 3-state outputs | Philips |
| 667333 | HEF40374BU | Octal D-type flip-flop with 3-state outputs | Philips |
| 667334 | HEF4040 | 12-stage binary counter | Philips |
| 667335 | HEF4040B | 12-stage binary counter | Philips |
| 667336 | HEF4040BD | 12-stage binary counter | Philips |
| 667337 | HEF4040BDB | 12-stage binary counter | Philips |
| 667338 | HEF4040BF | 12-stage binary counter | Philips |
| 667339 | HEF4040BN | 12-stage binary counter | Philips |
|
| 667340 | HEF4040BP | 12-stage binary ripple counter | NXP Semiconductors |
| 667341 | HEF4040BP | 12-stage binary counter | Philips |
| 667342 | HEF4040BPB | 12-stage binary counter | Philips |
| 667343 | HEF4040BT | 12-stage binary ripple counter | Nexperia |
| 667344 | HEF4040BT | 12-stage binary ripple counter | NXP Semiconductors |
| 667345 | HEF4040BT | 12-stage binary counter | Philips |
| 667346 | HEF4040BT-Q100 | 12-stage binary ripple counter | Nexperia |
| 667347 | HEF4040BT-Q100 | 12-stage binary ripple counter | NXP Semiconductors |
| 667348 | HEF4040BU | 12-stage binary counter | Philips |
| 667349 | HEF4041 | Quadruple true/complement buffer | Philips |
| 667350 | HEF4041B | Quadruple true/complement buffer | Philips |
| 667351 | HEF4041BD | Quadruple true/complement buffer | Philips |
| 667352 | HEF4041BDB | Quadruple true/complement buffer | Philips |
| 667353 | HEF4041BF | Quadruple true/complement buffer | Philips |
| 667354 | HEF4041BN | Quadruple true/complement buffer | Philips |
| 667355 | HEF4041BP | Quadruple true/complement buffer | Philips |
| 667356 | HEF4041BPB | Quadruple true/complement buffer | Philips |
| 667357 | HEF4041BT | Quadruple true/complement buffer | Philips |
| 667358 | HEF4042B | Quadruple D-latch | Philips |
| 667359 | HEF4042BD | Quadruple D-latch | Philips |
| 667360 | HEF4042BF | Quadruple D-latch | Philips |
