Rainbow-electronics DS1845 Manual do Utilizador

1 of 13 051900FEATURES Two linear taper potentiometers− DS1845-010 one 10k, 100 position &one 10k, 256 position− DS1845-050 one 10k, 100 pos

DS184510 of 13DC ELECTRICAL CHARACTERISTICS (-40°C to +85°C; VCC =2.7V to 5.5V)PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTESSupply CurrentActiveI

DS184511 of 13AC ELECTRICAL CHARACTERISTICS (-40oC to 85oC, Vcc=2.7V to 5.5V)PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTESSCL clock frequency fS

DS184512 of 136. A fast mode device can be used in a standard mode system, but the requirement tSU:DAT > 250 nsmust then be met. This will automa

DS184513 of 13ORDERING INFORMATIONORDERING NUMBERPACKAGE ORERATINGTEMPERATUREVERSIONPot 0/Pot 1DS1845E-010 14 PIN TSSOP (173 MIL) -40ºC TO +85ºC10 kΩ/

DS18452 of 13DS1845 BLOCK DIAGRAM Figure 1Up to eight DS1845s can be installed on a single 2-wire bus. Access to an individual device is achievedby u

DS18453 of 13H0, H1 – These are the high-end terminals of the potentiometers. For both potentiometers, it is notrequired that these terminals be conne

DS18454 of 13Device Addressing: The DS1845 must receive an 8-bit device address word following a start conditionto enable a specific device for a rea

DS18455 of 13RANDOM READA random read requires a dummy byte write sequence to load in the data word address. Once the deviceand data address bytes ar

DS18456 of 13Data valid: The state of the data line represents valid data when, after a START condition, the data lineis stable for the duration of th

DS18457 of 13The DS1845 may operate in the following two modes:1. Slave receiver mode: Serial data and clock are received through SDA and SCL respect

DS18458 of 132- WIRE PROTOCOL DATA TRANSFER PROTOCOL Figure 22-WIRE AC CHARACTERISTICS Figure 3

DS18459 of 13ABSOLUTE MAXIMUM RATINGS*Voltage on Any Pin Relative to Ground -1.0V to +6.0VOperating Temperature -40°C to +85°C; IndustrialProgramming