| 409121 | DM74S188AN | 25 ns, (32 x 8) 256-bit TTL PROM | National Semiconductor |
| 409122 | DM74S188AV | 25 ns, (32 x 8) 256-bit TTL PROM | National Semiconductor |
| 409123 | DM74S188J | 35 ns, (32 x 8) 256-bit TTL PROM | National Semiconductor |
| 409124 | DM74S188N | 35 ns, (32 x 8) 256-bit TTL PROM | National Semiconductor |
| 409125 | DM74S188V | 35 ns, (32 x 8) 256-bit TTL PROM | National Semiconductor |
| 409126 | DM74S189AJ | 4.75 V to 5.25 V, high speed 64-bit TRI-STATE RAM | National Semiconductor |
| 409127 | DM74S189AN | 4.75 V to 5.25 V, high speed 64-bit TRI-STATE RAM | National Semiconductor |
| 409128 | DM74S189J | 4.75 V to 5.25 V, 64-bit (16 x 4) TRI-STATE RAM | National Semiconductor |
| 409129 | DM74S189N | 4.75 V to 5.25 V, 64-bit (16 x 4) TRI-STATE RAM | National Semiconductor |
| 409130 | DM74S194 | 4-Bit Bidirectional Universal Shift Register | National Semiconductor |
| 409131 | DM74S194N | 7 V, 4-bit bidirectional universal shift register | National Semiconductor |
| 409132 | DM74S195 | 4-Bit Parallel Access Shift Register | National Semiconductor |
| 409133 | DM74S195N | 7 V, 4-bit parallel access shift register | National Semiconductor |
| 409134 | DM74S20 | Dual 4-Input NAND Gate | Fairchild Semiconductor |
| 409135 | DM74S20 | Dual 4-Input NAND Gate | National Semiconductor |
| 409136 | DM74S20N | Dual 4-Input NAND Gate | Fairchild Semiconductor |
| 409137 | DM74S240 | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 409138 | DM74S240 | Octal TRI-STATE Buffer/Line Driver/Line Receiver | National Semiconductor |
| 409139 | DM74S240N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
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| 409140 | DM74S240N | 7 V, octal TRI-STATE buffer/line driver/line receiver | National Semiconductor |
| 409141 | DM74S240WM | 7 V, octal TRI-STATE buffer/line driver/line receiver | National Semiconductor |
| 409142 | DM74S241 | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 409143 | DM74S241 | Octal TRI-STATE Buffer/Line Driver/Line Receiver | National Semiconductor |
| 409144 | DM74S241N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 409145 | DM74S241N | 7 V, octal TRI-STATE buffer/line driver/line receiver | National Semiconductor |
| 409146 | DM74S244 | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 409147 | DM74S244 | Octal TRI-STATE Buffer/Line Driver/Line Receiver | National Semiconductor |
| 409148 | DM74S244CW | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 409149 | DM74S244N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 409150 | DM74S244N | 7 V, octal TRI-STATE buffer/line driver/line receiver | National Semiconductor |
| 409151 | DM74S244WM | 7 V, octal TRI-STATE buffer/line driver/line receiver | National Semiconductor |
| 409152 | DM74S251 | TRI-STATE 1-of-8 Line Data Selector/Multiplexer with Complementary Outputs | National Semiconductor |
| 409153 | DM74S251N | 7 V, TRI-STATE 1 of 8 line data selector/multiplexer | National Semiconductor |
| 409154 | DM74S253 | Dual 3-STATE 1-of-4 Line Data Selector/Multiplexer | Fairchild Semiconductor |
| 409155 | DM74S253 | Dual TRI-STATE 1-of-4 Line Data Selector/Multiplexer | National Semiconductor |
| 409156 | DM74S253N | Dual 3-STATE 1-of-4 Line Data Selector/Multiplexer | Fairchild Semiconductor |
| 409157 | DM74S253N | 7 V, dual TRI-STATE 1 of 4 line data selector/multiplexer | National Semiconductor |
| 409158 | DM74S257 | 3-STATE Quad 1-of-2 Data Selector/Multiplexer | Fairchild Semiconductor |
| 409159 | DM74S257 | Quad TRI-STATE 2-to-1 Line Data Selector/Multiplexer | National Semiconductor |
| 409160 | DM74S257CW | Quad 3-STATE 2-to-1 Line Data Selector/Multiplexer | Fairchild Semiconductor |
