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DS18B20 Datasheet(PDF) 13 Page - Dallas Semiconductor |
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DS18B20 Datasheet(HTML) 13 Page - Dallas Semiconductor |
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13 / 22 page  DS18B20 13 of 22 Figure 11. ROM Commands Flowchart CCh SKIP ROM COMMAND MASTER TX RESET PULSE DS18B20 TX PRESENCE PULSE MASTER TX ROM COMMAND 33h READ ROM COMMAND 55h MATCH ROM COMMAND F0h SEARCH ROM COMMAND ECh ALARM SEARCH COMMAND MASTER TX BIT 0 DS18B20 TX BIT 0 DS18B20 TX BIT 0 MASTER TX BIT 0 BIT 0 MATCH? MASTER TX BIT 1 BIT 1 MATCH? BIT 63 MATCH? MASTER TX BIT 63 N Y Y Y Y Y N N N N N N N Y Y Y DS18B20 TX BIT 1 DS18B20 TX BIT 1 MASTER TX BIT 1 DS18B20 TX BIT 63 DS18B20 TX BIT 63 MASTER TX BIT 63 BIT 0 MATCH? BIT 1 MATCH? BIT 63 MATCH? N N N Y Y Y DS18B20 TX FAMILY CODE 1 BYTE DS18B20 TX SERIAL NUMBER 6 BYTES DS18B20 TX CRC BYTE DS18B20 TX BIT 0 DS18B20 TX BIT 0 MASTER TX BIT 0 N Y DEVICE(S) WITH ALARM FLAG SET? Initialization Sequence MASTER TX FUNCTION COMMAND (FIGURE 12) |
Número de pieza similar - DS18B20 |
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Descripción similar - DS18B20 |
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