| 663 | DS1497 | RAMified real time clock |
| 664 | DS1553P-100 | 4MEG NV Y2KC Timekeeping RAM |
| 665 | DS1553P-70 | 4MEG NV Y2KC Timekeeping RAM |
| 666 | DS1553WP-120 | 4MEG NV Y2KC Timekeeping RAM |
| 667 | DS1553WP-150 | 4MEG NV Y2KC Timekeeping RAM |
| 668 | DS1554-100 | 256K NV Y2KC Timekeeping RAM |
| 669 | DS1554-70 | 256K NV Y2KC Timekeeping RAM |
| 670 | DS1554P-100 | 256K NV Y2KC Timekeeping RAM |
| 671 | DS1554P-70 | 256K NV Y2KC Timekeeping RAM |
| 672 | DS1554W-120 | 256K NV Y2KC Timekeeping RAM |
| 673 | DS1554W-150 | 256K NV Y2KC Timekeeping RAM |
| 674 | DS1554WP-120 | 256K NV Y2KC Timekeeping RAM |
| 675 | DS1554WP-150 | 256K NV Y2KC Timekeeping RAM |
| 676 | DS1602 | Elapsed Time Counter |
| 677 | DS1602S | Elapsed Time Counter |
| 678 | DS1603 | Elapsed Time Counter Module |
| 679 | DS1609 | Dual port RAM, 256–byte |
| 680 | DS1609S | Dual port RAM, 256–byte |
| 681 | DS1615 | Temperature Recorder |
| 682 | DS1615S | Temperature Recorder |
| 683 | DS1616 | Temperature and Three Input MUXed 8-bit Data Recorder |
| 684 | DS1616S | Temperature and Three Input MUXed 8-bit Data Recorder |
| 685 | DS1620 | Digital Thermometer and Thermostat |
| 686 | DS1620S | Digital Thermometer and Thermostat |
| 687 | DS1621 | Digital Thermometer and Thermostat |
| 688 | DS1621S | Digital Thermometer and Thermostat |
| 689 | DS1624 | Digital Thermometer and Memory |
| 690 | DS1624S | Digital Thermometer and Memory |
| 691 | DS1629S | 2-Wire Digital Thermometer and Real Time Clock |
| 692 | DS1631AU | High-precision digital thermometer and thermostat |
| 693 | DS1631AU_T_R | High-precision digital thermometer and thermostat |
| 694 | DS1631U | High-precision digital thermometer and thermostat |
| 695 | DS1631U_T_R | High-precision digital thermometer and thermostat |
| 696 | DS1631Z | High-precision digital thermometer and thermostat |
| 697 | DS1631Z_T_R | High-precision digital thermometer and thermostat |
| 698 | DS1642-100 | Nonvolatile Timekeeping RAM |
| 699 | DS1642-70 | Nonvolatile Timekeeping RAM |
| 700 | DS1643-120 | Nonvolatile timekeeping RAM, 120ns access |
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