Коды 1-WIRE Dallas таблеток
An integral part of the unique registration number in each slave is an 8-bit family code. This code is specific to the device model. Because each device model performs different functions, this code is used to select the protocol that will be used to control or interrogate it. See Table 1 for a mapping of family codes for Maxim 1-Wire parts.
Table 1. Family Code Reference
| Family Code | Part () — iButton Package | Description (Memory size in bits unless specified) |
| 01 (hex) | (DS1990A), (DS1990R), DS2401, DS2411 | 1-Wire net address (registration number) only |
| 02 | (DS1991)¹ | Multikey iButton, 1152-bit secure memory |
| 04 | (DS1994), DS2404 | 4Kb NV RAM memory and clock, timer, alarms |
| 05 | DS2405¹ | 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, DS2407¹ | 1Kb EPROM memory, 2-channel addressable switch |
| 14 | (DS1971), DS2430A¹ | 256-bit EEPROM memory and 64-bit OTP register |
| 1A | (DS1963L)¹ | 4Kb NV RAM memory with write cycle counters |
| 1C | DS28E04-100 | 4096-bit EEPROM memory, 2-channel addressable switch |
| 1D | DS2423¹ | 4Kb NV RAM memory with external counters |
| 1F | DS2409¹ | 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 | DS2890¹ | 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 | High-capacity Thermochron (temperature) and Hygrochron™ (humidity) loggers |
| 42 | DS28EA00 | Programmable resolution digital thermometer with sequenced detection and PIO |
| 43 | DS28EC20 | 20Kb 1-Wire EEPROM |
*This list may not include all Maxim 1-Wire device types (families), just the ones directly supported by the Automatic Information Business Unit’s (BU’s) software libraries.
¹These devices are no longer recommended for new designs.
