| 54F182FM-MLS | National Semiconductor | Carry Lookahead Generator |
| 54F189 | National Semiconductor | 64-Bit Random Access Memory with TRI-STATE Outputs |
| 54F189DLQB | National Semiconductor | 64-Bit Random Access Memory with TRI-STATE Outputs |
| 54F190 | National Semiconductor | Up/Down Decade Counter with Preset and Ripple Clock |
| 54F190DMQB | National Semiconductor | Up/Down Decade Counter with Preset and Ripple Clock |
| 54F191 | National Semiconductor | Up/Down Binary Counter with Preset and Ripple Clock |
| 54F191FMQB | National Semiconductor | Up/Down Binary Counter with Preset and Ripple Clock |
| 54F191LMQB | National Semiconductor | Up/Down Binary Counter with Preset and Ripple Clock |
| 54F192 | National Semiconductor | Up/Down Decade Counter with Separate Up/Down Clocks [Life-time buy] |
| 54F192DMQB | National Semiconductor | Up/Down Decade Counter with Separate Up/Down Clocks [Life-time buy] |
| 54F193 | National Semiconductor | Up/Down Binary Counter with Separate Up/Down Clocks |
| 54F193DMQB | National Semiconductor | Up/Down Binary Counter with Separate Up/Down Clocks |
| 54F193LMQB | National Semiconductor | Up/Down Binary Counter with Separate Up/Down Clocks |
| 54F194 | National Semiconductor | 4-Bit Bidirectional Universal Shift Register |
| 54F194DM-MLS | National Semiconductor | 4-Bit Bidirectional Universal Shift Register |
| 54F194DMQB | National Semiconductor | 4-Bit Bidirectional Universal Shift Register |
| 54F194LMQB | National Semiconductor | 4-Bit Bidirectional Universal Shift Register |
| 54F20 | National Semiconductor | Dual 4-Input NAND Gate |
| 54F219 | National Semiconductor | 64-Bit Random Access Memory with TRI-STATE Outputs |
| 54F219DLQB | National Semiconductor | 64-Bit Random Access Memory with TRI-STATE Outputs |