| 971921 | M54HC193M1R | SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER | SGS Thomson Microelectronics |
| 971922 | M54HC193M1R | SYNCHRONOUS UP/DOWN DECADE(/BINARY) COUNTER | ST Microelectronics |
| 971923 | M54HC194 | 4 BIT PIPO SHIFT REGISTER | SGS Thomson Microelectronics |
| 971924 | M54HC194 | 4 BIT PIPO SHIFT REGISTER | ST Microelectronics |
| 971925 | M54HC194DG | Rad-Hard 4-bit PIPO Shit Register | ST Microelectronics |
| 971926 | M54HC194DT | Rad-Hard 4-bit PIPO Shit Register | ST Microelectronics |
| 971927 | M54HC194F1R | 4 BIT PIPO SHIFT REGISTER | SGS Thomson Microelectronics |
| 971928 | M54HC194F1R | 4 BIT PIPO SHIFT REGISTER | ST Microelectronics |
| 971929 | M54HC195 | 8 BIT PIPO SHIFT REGISTER | SGS Thomson Microelectronics |
| 971930 | M54HC195 | 8 BIT PIPO SHIFT REGISTER | ST Microelectronics |
| 971931 | M54HC195F1R | 8 BIT PIPO SHIFT REGISTER | SGS Thomson Microelectronics |
| 971932 | M54HC195F1R | 8 BIT PIPO SHIFT REGISTER | ST Microelectronics |
| 971933 | M54HC20 | DUAL 4-INPUT NAND GATE | SGS Thomson Microelectronics |
| 971934 | M54HC20 | RAD-HARD DUAL 4-INPUT NAND GATE | ST Microelectronics |
| 971935 | M54HC20D | RAD-HARD DUAL 4-INPUT NAND GATE | ST Microelectronics |
| 971936 | M54HC20DG | Rad-Hard Dual 4-Input NAND Gate | ST Microelectronics |
| 971937 | M54HC20DT | Rad-Hard Dual 4-Input NAND Gate | ST Microelectronics |
| 971938 | M54HC20F1R | DUAL 4-INPUT NAND GATE | ST Microelectronics |
| 971939 | M54HC20KG | Rad-Hard Dual 4-Input NAND Gate | ST Microelectronics |
|
| 971940 | M54HC20KT | Rad-Hard Dual 4-Input NAND Gate | ST Microelectronics |
| 971941 | M54HC21 | DUAL 4-INPUT AND GATE | SGS Thomson Microelectronics |
| 971942 | M54HC21 | RAD-HARD DUAL 4-INPUT AND GATE | ST Microelectronics |
| 971943 | M54HC21D | RAD-HARD DUAL 4-INPUT AND GATE | ST Microelectronics |
| 971944 | M54HC21DG | Rad-Hard Dual 4-Input AND Gate | ST Microelectronics |
| 971945 | M54HC21DT | Rad-Hard Dual 4-Input AND Gate | ST Microelectronics |
| 971946 | M54HC21F1R | DUAL 4-INPUT AND GATE | ST Microelectronics |
| 971947 | M54HC21K | RAD-HARD DUAL 4-INPUT AND GATE | ST Microelectronics |
| 971948 | M54HC21KG | Rad-Hard Dual 4-Input AND Gate | ST Microelectronics |
| 971949 | M54HC21KT | Rad-Hard Dual 4-Input AND Gate | ST Microelectronics |
| 971950 | M54HC221 | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
| 971951 | M54HC221 | DUAL MONOSTABLE MULTIVIBRATOR | ST Microelectronics |
| 971952 | M54HC221A | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
| 971953 | M54HC221A | DUAL MONOSTABLE MULTIVIBRATOR | ST Microelectronics |
| 971954 | M54HC221AB1R | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
| 971955 | M54HC221AB1R | DUAL MONOSTABLE MULTIVIBRATOR | ST Microelectronics |
| 971956 | M54HC221AC1R | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
| 971957 | M54HC221AC1R | DUAL MONOSTABLE MULTIVIBRATOR | ST Microelectronics |
| 971958 | M54HC221AF1R | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
| 971959 | M54HC221AF1R | DUAL MONOSTABLE MULTIVIBRATOR | ST Microelectronics |
| 971960 | M54HC221AM1R | DUAL MONOSTABLE MULTIVIBRATOR | SGS Thomson Microelectronics |
