Rainbow Electronics DS1822-PAR Instruction Manuals and User Guides
We have 1 Instruction Manual and User Guide for DS1822-PAR Rainbow Electronics
Manuals 
| Recognized languages: | English |
|---|---|
| Pages: | 19 |
| Size: | 139 KB |
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Document Outline
- FEATURES
- PIN ASSIGNMENT
- PIN DESCRIPTION
- D
- DESCRIPTION
- OVERVIEW
- DS1822-PAR BLOCK DIAGRAM Figure 1
- PARASITE POWER
- SUPPLYING THE DS1822-PAR DURING TEMPERATURE CONVERSIONS Figure 2
- OPERATION – MEASURING TEMPERATURE
- TEMPERATURE REGISTER FORMAT Figure 3
- TEMPERATURE/DATA RELATIONSHIP Table 2
- OPERATION – ALARM SIGNALING
- TH AND TL REGISTER FORMAT Figure 4
- 64-BIT LASERED ROM CODE
- 64-BIT LASERED ROM CODE Figure 5
- MEMORY
- DS1822-PAR MEMORY MAP Figure 6
- CONFIGURATION REGISTER
- Byte 4 of the scratchpad memory contains the configuration register, which is organized as illustrated in Figure 7. The user can set the conversion resolution of the DS1822-PAR using the R0 and R1 bits in this register as shown in Table 3. The power-u
- CONFIGURATION REGISTER Figure 7
- THERMOMETER RESOLUTION CONFIGURATION Table 3
- CRC GENERATION
- CRC GENERATOR Figure 8
- 1-WIRE BUS SYSTEM
- HARDWARE CONFIGURATION
- HARDWARE CONFIGURATION Figure 9
- TRANSACTION SEQUENCE
- INITIALIZATION
- ROM COMMANDS
- SEARCH ROM [F0h]
- READ ROM [33h]
- MATCH ROM [55h]
- SKIP ROM [CCh]
- ALARM SEARCH [ECh]
- DS1822-PAR FUNCTION COMMANDS
- CONVERT T [44h]
- WRITE SCRATCHPAD [4Eh]
- READ SCRATCHPAD [BEh]
- COPY SCRATCHPAD [48h]
- RECALL E2 [B8h]
- DS1822-PAR FUNCTION COMMAND SET Table 4
- NOTES:
- ROM COMMANDS FLOW CHART Figure 9
- DS1822-PAR FUNCTION COMMANDS FLOW CHART Figure 10
- 1-WIRE SIGNALING
- 1-WIRE SIGNALING
- INITIALIZATION PROCEDURE: RESET AND PRESENCE PULSES
- INITIALIZATION TIMING Figure 11
- READ/WRITE TIME SLOTS
- WRITE TIME SLOTS
- READ/WRITE TIME SLOT TIMING DIAGRAM Figure 12
- READ TIME SLOTS
- DETAILED MASTER READ 1 TIMING Figure 13
- RECOMMENDED MASTER READ 1 TIMING Figure 14
- RELATED APPLICATION NOTES
- DS1822-PAR OPERATION EXAMPLE 1
- DS1822-PAR OPERATION EXAMPLE 2
- ABSOLUTE MAXIMUM RATINGS*
- DC ELECTRICAL CHARACTERISTICS (-55˚C to +100˚C; VPU=3.0V to 5.5V)
- NOTES:
- AC ELECTRICAL CHARACTERISTICS: NV MEMORY
- (-55˚C to +100˚C; VPU=3.0V to 5.5V)
- AC ELECTRICAL CHARACTERISTICS: (-55˚C to +100˚C; VPU=3.0V to 5.5V)
- NOTES:
- TYPICAL PERFORMANCE CURVE Figure 15
- TIMING DIAGRAMS Figure 16