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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 121. | HEF4505BD | 64-bit, 1-bit per word random access read/write memory | PHLPS | SOT73 | - | - | - | 96K |
| 122. | HEF4555BT | Dual 1-of-4 decoder/demultiplexer | PHLPS | SOT109 | - | - | - | 36K |
| 123. | HEF4556BD | Dual 1-of-4 decoder/demultiplexer | PHLPS | SOT74 | - | - | - | 38K |
| 124. | HEF4556BDB | Dual 1-of-4 decoder/demultiplexer | PHLPS | SOT74 | - | - | - | 38K |
| 125. | HEF4556BP | Dual 1-of-4 decoder/demultiplexer | PHLPS | SOT38 | - | - | - | 38K |
| 126. | HEF4556BPB | Dual 1-of-4 decoder/demultiplexer | PHLPS | SOT38 | - | - | - | 38K |
| 127. | HEF4556BT | Dual 1-of-4 decoder/demultiplexer | PHLPS | SOT109 | - | - | - | 38K |
| 128. | HEF4556BU | Dual 1-of-4 decoder/demultiplexer | PHLPS | - | - | - | - | 38K |
| 129. | HEF4557BD | 1-to-64 bit variable length shift register | PHLPS | SOT74 | - | - | - | 78K |
| 130. | HEF4557BDB | 1-to-64 bit variable length shift register | PHLPS | SOT74 | - | - | - | 78K |
| 131. | HEF4557BP | 1-to-64 bit variable length shift register | PHLPS | SOT38 | - | - | - | 78K |
| 132. | HEF4557BT | 1-to-64 bit variable length shift register | PHLPS | SOT109 | - | - | - | 78K |
| 133. | HEF4557BU | 1-to-64 bit variable length shift register | PHLPS | - | - | - | - | 78K |
| 134. | HEF4585BD | 4-bit magnitude comparator | PHLPS | SOT74 | - | - | - | 66K |
| 135. | HEF4585BD | 4-bit magnitude comparator | PHLPS | SOT74 | - | - | - | 66K |
| 136. | HEF4585BDB | 4-bit magnitude comparator | PHLPS | SOT74 | - | - | - | 66K |
| 137. | HEF4585BP | 4-bit magnitude comparator | PHLPS | SOT38 | - | - | - | 66K |
| 138. | HEF4585BPB | 4-bit magnitude comparator | PHLPS | SOT38 | - | - | - | 66K |
| 139. | HEF4585BT | 4-bit magnitude comparator | PHLPS | SOT109 | - | - | - | 66K |
| 140. | HEF4585BU | 4-bit magnitude comparator | PHLPS | - | - | - | - | 66K |
