| 648321 | HCF4521BEY | 24-STAGE FREQUENCY DIVIDER | SGS Thomson Microelectronics |
| 648322 | HCF4521BEY | 24-STAGE FREQUENCY DIVIDER | ST Microelectronics |
| 648323 | HCF4521BM013TR | 24-STAGE FREQUENCY DIVIDER | SGS Thomson Microelectronics |
| 648324 | HCF4521BM1 | 24-STAGE FREQUENCY DIVIDER | SGS Thomson Microelectronics |
| 648325 | HCF4521BM1 | 24-STAGE FREQUENCY DIVIDER | ST Microelectronics |
| 648326 | HCF4521M013TR | 24-STAGE FREQUENCY DIVIDER | ST Microelectronics |
| 648327 | HCF4522B | PROGRAMMABLE BCD DIVIDER-BY-N COUNTER | SGS Thomson Microelectronics |
| 648328 | HCF4522B | PROGRAMMABLE BCD DIVIDER-BY-N COUNTER | ST Microelectronics |
| 648329 | HCF4522BC1 | PROGRAMMABLE BCD DIVIDER-BY-N COUNTER | ST Microelectronics |
| 648330 | HCF4522BEY | PROGRAMMABLE BCD DIVIDER-BY-N COUNTER | ST Microelectronics |
| 648331 | HCF4522BM1 | PROGRAMMABLE BCD DIVIDER-BY-N COUNTER | ST Microelectronics |
| 648332 | HCF4527 | BCD RATE MULTIPLEXER | ST Microelectronics |
| 648333 | HCF4527B | BCD RATE MULTIPLEXER | SGS Thomson Microelectronics |
| 648334 | HCF4527B | BCD rate multiplier | SGS-ATES |
| 648335 | HCF4527B | BCD RATE MULTIPLEXER | ST Microelectronics |
| 648336 | HCF4527BEY | BCD RATE MULTIPLEXER | SGS Thomson Microelectronics |
| 648337 | HCF4527BEY | BCD RATE MULTIPLEXER | ST Microelectronics |
| 648338 | HCF4529B | ANALOG DATA SELECTOR, DUAL 4-CHANNEL OR SINGLE 8-CHANNEL | SGS Thomson Microelectronics |
| 648339 | HCF4529B | ANALOG DATA SELECTOR DUAL 4-CHANNEL OR SINGLE 8-CHANNEL | ST Microelectronics |
|
| 648340 | HCF4529BC1 | ANALOG DATA SELECTOR DUAL 4-CHANNEL OR SINGLE 8-CHANNEL | ST Microelectronics |
| 648341 | HCF4529BEY | ANALOG DATA SELECTOR DUAL 4-CHANNEL OR SINGLE 8-CHANNEL | ST Microelectronics |
| 648342 | HCF4529BM1 | ANALOG DATA SELECTOR DUAL 4-CHANNEL OR SINGLE 8-CHANNEL | ST Microelectronics |
| 648343 | HCF4532 | 8-BIT PRIORITY ENCODER | ST Microelectronics |
| 648344 | HCF4532B | 8ûBIT PRIORITY ENCODER | SGS Thomson Microelectronics |
| 648345 | HCF4532B | 8-input priority encoder | SGS-ATES |
| 648346 | HCF4532B | 8-BIT PRIORITY ENCODER | ST Microelectronics |
| 648347 | HCF4532BC1 | 8-BIT PRIORITY ENCODER | ST Microelectronics |
| 648348 | HCF4532BEY | V(dd): 3-20V; V(in) 0 - V(dd); 8-bit priority encoder | SGS Thomson Microelectronics |
| 648349 | HCF4532BEY | 8-BIT PRIORITY ENCODER | ST Microelectronics |
| 648350 | HCF4532BM1 | V(dd): 3-20V; V(in) 0 - V(dd); 8-bit priority encoder | SGS Thomson Microelectronics |
| 648351 | HCF4532BM1 | 8-BIT PRIORITY ENCODER | ST Microelectronics |
| 648352 | HCF4532M013TR | V(dd): 3-20V; V(in) 0 - V(dd); 8-bit priority encoder | SGS Thomson Microelectronics |
| 648353 | HCF4532M013TR | 8-BIT PRIORITY ENCODER | ST Microelectronics |
| 648354 | HCF4536 | PROGAMMABLE TIMER | ST Microelectronics |
| 648355 | HCF4536B | PROGRAMMABLE TIMER | SGS Thomson Microelectronics |
| 648356 | HCF4536B | PROGRAMMABLE TIMER | ST Microelectronics |
| 648357 | HCF4536BC1 | PROGRAMMABLE TIMER | ST Microelectronics |
| 648358 | HCF4536BEY | PROGAMMABLE TIMER | ST Microelectronics |
| 648359 | HCF4538 | DUAL MONOSTABLE MULTIVIBRATOR | ST Microelectronics |
| 648360 | HCF4538B | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
