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| Family Code (hex) | Component / Chip | Description (Memory Size in bits, wnaa) |
|---|---|---|
| 01 | (DS1990A), (DS1990R), DS2401, DS2411 | 1–Wire net address (registration number) only |
| 02 | (DS1991)* | Multikey iButton, 1152-bit secure memory |
| 04 | (DS1994), DS2404 | 4Kb NV RAM memory and clock, timer, alarms |
| 05 | DS2405* | Single addressable switch |
| 06 | (DS1993) | 4Kb NV RAM memory |
| 08 | (DS1992) | 1Kb NV RAM memory |
| 09 | (DS1982), DS2502 | 1Kb EPROM memory |
| 0A | (DS1995) | 16Kb NV RAM memory |
| 0B | (DS1985), DS2505 | 16Kb EPROM memory |
| 0C | (DS1996) | 64Kb NV RAM memory |
| 0F | (DS1986), DS2506 | 64Kb EPROM memory |
| 10 | (DS1920) | Temperature with alarm trips |
| 12 | DS2406, DS2407* | 1Kb EPROM memory, 2-channel addressable switch |
| 14 | (DS1971), DS2430A* | 256-bit EEPROM memory and 64-bit OTP register |
| 1A | (DS1963L)* | 4Kb NV RAM memory with write cycle counters |
| 1C | DS28E04-100 | 4096-bit EEPROM memory, 2-channel addressable switch |
| 1D | DS2423* | 4Kb NV RAM memory with external counters |
| 1F | DS2409* | 2-channel addressable coupler for sub-netting |
| 20 | DS2450 | 4-channel A/D converter (ADC) |
| 21 | (DS1921G), (DS1921H), (DS1921Z) | Thermochron® temperature logger |
| 23 | (DS1973), DS2433 | 4Kb EEPROM memory |
| 24 | (DS1904), DS2415 | Real-time clock (RTC) |
| 27 | DS2417 | RTC with interrupt |
| 29 | DS2408 | 8-channel addressable switch |
| 2C | DS2890* | 1-channel digital potentiometer |
| 2D | (DS1972), DS2431 | 1024-bit, 1-Wire EEPROM |
| 37 | (DS1977) | Password-protected 32KB (bytes) EEPROM |
| 3A | (DS2413) | 2-channel addressable switch |
| 41 | (DS1922L), (DS1922T), (DS1923), DS2422 |
|
The list does not claim to be complete.
* These chips are no longer recommended for new designs.