Rainbow-electronics DS28EA00 Instrukcja Użytkownika

1 of 29 012907 Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revision

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 10 of 29 Registration number is read, it is put into the chain DONE state, whic

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 11 of 29 RECALL EEPROM [B8h] This command recalls the TH and TL alarm trigger v

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 12 of 29 After the command code the master transmits a PIO Output Data byte tha

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 13 of 29 Figure 10-1. Control Function Flow Chart From Figure 10 2nd Part To F

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 14 of 29 Figure 10-2. Control Function Flow Chart (continued) From Figure 10 3

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 15 of 29 Figure 10-3. Control Function Flow Chart (continued) To Figure 104th

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 16 of 29 Figure 10-4. Control Function Flow Chart (continued) To Figure 10 5th

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 17 of 29 Figure 10-5. Control Function Flow Chart (continued) From Figure 10 4

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 18 of 29 1-Wire BUS SYSTEM The 1-Wire bus is a system that has a single bus mas

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 19 of 29 1-Wire ROM FUNCTION COMMANDS Once the bus master has detected a presen

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 2 of 29 ABSOLUTE MAXIMUM RATINGS IO Voltage to GND -0.5V, +6VIO Sink Current

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 20 of 29 SKIP ROM [CCh] This command can save time in a single-drop bus system

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 21 of 29 Figure 12-1. ROM Funtions Flow Chart From Figure 12 2nd Part To Cont

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 22 of 29 Figure 12-2. ROM Functions Flow Chart YN YN N N OD = 1Master TX Bit 0

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 23 of 29 1-Wire SIGNALING The DS28EA00 requires strict protocols to ensure data

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 24 of 29 Master-To-Slave For a write-one time slot, the voltage on the data lin

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 25 of 29 The sum of tRL + δ (rise time) on one side and the internal timing gen

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 26 of 29 SEQUENCE DISCOVERY PROCEDURE Precondition: The PIOB pin (EN\) of the f

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 27 of 29 COMMAND-SPECIFIC 1-Wire COMMUNICATION PROTOCOL—LEGEND SYMBOL DESCRIPTI

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 28 of 29 COPY SCRATCHPAD (PARASITE POWERED) RST PD Select CPS Wait tPROGMAX F

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 29 of 29 PIO ACCESS WRITE (SUCCESS) RST PD Select PIOW <PIO Output data>

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 3 of 29 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS IO Pin, 1-Wire Write

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 4 of 29 Note 18: δ in Figure 14 represents the time required for the pullup cir

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 5 of 29 OVERVIEW The block diagram in Figure 1 shows the relationships between

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 6 of 29 64-BIT REGISTRATION NUMBER Each DS28EA00 contains a unique Registration

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 7 of 29 Figure 4. 1-Wire CRC Generator X0X1X2X3X4X5X6X7X8Polynomial = X8 + X5

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 8 of 29 The temperature reading is in °C using a 16-bit sign-extended two’s com

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO 9 of 29 PIO Structure Each PIO consists of an open-drain pulldown transistor a