DS2483Q+U Maxim Integrated, DS2483Q+U Datasheet
DS2483Q+U
Specifications of DS2483Q+U
Related parts for DS2483Q+U
DS2483Q+U Summary of contents
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... I C PULLUP RESISTOR (SEE THE P 1-Wire is a registered trademark of Maxim Integrated Products, Inc. For related parts and recommended products to use with this part, refer to: For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. ...
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... Active Pullup Impedance 1-Wire Output Fall Time (Note 4) IO PIN: 1-Wire TIMING (Note 5) Reset Low Time Reset High Time Maxim Integrated Single-Channel 1-Wire Master Operating Temperature Range .......................... -40NC to +85NC Junction Temperature .....................................................+150NC Storage Temperature Range ............................ -55NC to +125NC Lead Temperature (soldering, 10s) ................................+300NC Soldering Temperature (reflow) ...
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... Inputs (Note 4) Low-Level Output Voltage at 3mA Sink Current Output Fall Time from V to IH(MIN) V with a Bus Capacitance IL(MAX) from 10pF to 400pF Pulse Width of Spikes Suppressed by Input Filter Maxim Integrated Single-Channel 1-Wire Master SYMBOL CONDITIONS Standard t MSP Overdrive Standard t SI Overdrive Standard ...
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... Note 14 Total capacitance of one bus line in pF. The maximum bus capacitance allowable can vary from this value depend- B ing on the actual operating voltage and frequency of the application (I Maxim Integrated Single-Channel 1-Wire Master SYMBOL CONDITIONS I ...
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... SOT23 1 3 SCL 2 2 SDA 3 1 SLPZ 4, 5 — N. GND — — EP Maxim Integrated Single-Channel 1-Wire Master 8 GND IO 7 TDFN (2mm x 3mm N. GND 5 4 SOT23 2 3 SDA SCL “rr” = REVISION CODE Serial-Clock Input. Must be connected to the I resistor ...
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... See Figure 1 for a block diagram. Device Registers The DS2483 has four registers that the I read: Device Configuration, Status, Read Data, and Port Configuration. These registers are addressed by a read Maxim Integrated Single-Channel 1-Wire Master CONFIGURATION AND T-TIME OSC TIMING REGISTER INPUT/OUTPUT 2 ...
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... V IL1MAX 0V 1-Wire BUS IS DISCHARGED Figure 2. Rising Edge Pullup as Seen at the End of a Write-Zero Time Slot Maxim Integrated Single-Channel 1-Wire Master Active Pullup (APU) activates a low-impedance pullup transistor, as repre- sented by the dashed line. The active pullup remains resis- active until the end of the time slot (t WPU resistive pullup continues ...
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... LAST BIT OF 1-Wire WRITE BYTE OR 1-Wire SINGLE BIT FUNCTION V CC SEE TEXT 0V DS2483 RESISTIVE PULLUP Figure 3. Low-Impedance Pullup Timing Maxim Integrated Single-Channel 1-Wire Master Strong Pullup (SPU) is written the DS2483 receives the command. When the strong pullup ends, the SPU bit is or 1-Wire Single Bit automatically reset to 0 ...
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... DS1994 or DS2404 sig- naling a 1-Wire interrupt. For this reason DS2404 or DS1994 is used in the application, the interrupt function must be disabled. The interrupt signaling is explained in the respective Maxim 1-Wire IC data sheets. Maxim Integrated Single-Channel 1-Wire Master BIT 5 BIT 4 BIT 3 ...
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... Note that the upper 4 bits read from the port configura- tion register are always 0. See Table 7 for the conversion between parameter value code and actual parameter value. Maxim Integrated Single-Channel 1-Wire Master BIT 5 BIT 4 BIT 3 ...
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... Table 5. Valid Read Pointer Codes REGISTER Device Configuration Register Status Register Read Data Register Port Configuration Register Maxim Integrated Single-Channel 1-Wire Master F0h None Performs a global reset of device state machine logic. Terminates any ongoing 1-Wire com- munication. Device initialization after power-up; reinitialization (reset) as desired. ...
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... Activity Read Pointer Position Status Bits Affected Device Configurations Affected Port Configurations Affected Maxim Integrated Single-Channel 1-Wire Master D2h Configuration Byte Writes a new device configuration byte. The new settings take effect immediately. Note: When writing to the Device Configuration register, the new data is accepted only if the upper nibble (bits the one’ ...
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... Note: The power-on default values are bold. Maxim Integrated Single-Channel 1-Wire Master BIT 5 BIT 4 BIT VAL3 ; the OD flag does not apply (don’t care) ; the OD flag does not apply (don’t care) PARAMETER 001 ...
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... CC V IH1 V IL1 Figure 4. 1-Wire Reset/Presence-Detect Cycle Maxim Integrated Single-Channel 1-Wire Master B4h None Generates a 1-Wire reset/presence-detect cycle at the 1-Wire line (Figure 4). The state of the 1-Wire line is sampled at t and t SI through the Status register bits PPD and SD. To initiate or end any 1-Wire communication sequence. ...
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... BIT 7 BIT Don’t care Maxim Integrated Single-Channel 1-Wire Master 87h Bit Byte Generates a single 1-Wire time slot with a bit value “V” as specified by the bit byte at the 1-Wire line (Table 8 value of 0b generates a write-zero time slot (Figure 5 value of 1b generates a write-one time slot, which also functions as a read-data time slot (Figure 6) ...
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... STARTS RISING AGAIN. WHEN RESPONDING WITH 1-Wire SLAVE DOES NOT HOLD THE LINE LOW AT ALL, AND THE VOLTAGE STARTS RISING AS SOON OVER. 1-Wire DEVICE DATA SHEETS USE THE TERM t SPECIFICATIONS AND CANNOT BE DISTINGUISHED FROM EACH OTHER. Figure 6. Write-One and Read-Data Time Slot Maxim Integrated Single-Channel 1-Wire Master t WOL ...
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... Activity Read Pointer Position Status Bits Affected Device Configurations Affected Port Configurations Affected Maxim Integrated Single-Channel 1-Wire Master A5h Data Byte Writes a single data byte to the 1-Wire line. To write commands or data to the 1-Wire line. Equivalent to executing eight 1-Wire Single Bit ...
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... BIT 7 BIT Don’t care Maxim Integrated Single-Channel 1-Wire Master 78h Direction Byte Generates three time slots: two read time slots and one write time slot at the 1-Wire line. The type of write time slot depends on the result of the read time slots and the direction byte. ...
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... Data on the bus can be transferred at rates 100kbps in standard mode and up to 400kbps in fast mode. The DS2483 works in both modes. Maxim Integrated Single-Channel 1-Wire Master MSB LSB R/W ACK DATA ...
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... LOW SCL t t HD:STA R STOP START NOTE: TIMING IS REFERENCED TO V AND V IL(MAX) IH(MIN) 2 Figure Timing Diagram Maxim Integrated Single-Channel 1-Wire Master Definitions for a timing diagram HIGH t t HD:DAT SU:DAT REPEATED . remain valid and unchanged during the entire high ...
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... To read from a different register, the master must issue the mand and then access the DS2483 again in read mode. Maxim Integrated Single-Channel 1-Wire Master See legend and data direction codes. ...
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... The control byte is always acknowledged, regardless of its value. See the for the format of the control byte. Case B: 1-Wire Busy (1WB = 1) S AD,0 A ADJP The master should stop and restart as soon as the DS2483 does not acknowledge the command code. Maxim Integrated Single-Channel 1-Wire Master Communication Examples (continued AD,1 A < ...
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... Case C: 1-Wire Busy (1WB = 1) S AD,0 A 1WRS The master should stop and restart as soon as the DS2483 does not acknowledge the command code. Maxim Integrated Single-Channel 1-Wire Master Communication Examples (continued) Set Read Pointer command first to position the read pointer to the Port A < ...
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... A 1WWB When 1WB has changed from the Case C: 1-Wire Busy (1WB = 1) S AD,0 A 1WWB The master should stop and restart as soon as the DS2483 does not acknowledge the command code. Maxim Integrated Single-Channel 1-Wire Master Communication Examples (continued) A <byte> (Idle) ...
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... E1h) and access the device again to read the data byte that was obtained from the 1-Wire line. Case D: 1-Wire Busy (1WB = 1) S AD,0 A 1WRB The master should stop and restart as soon as the DS2483 does not acknowledge the command code. Maxim Integrated Single-Channel 1-Wire Master Communication Examples (continued ...
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... When 1WB has changed from the Status register holds the valid result of the Case C: 1-Wire Busy (1WB = 1) S AD,0 A 1WT The master should stop and restart as soon as the DS2483 does not acknowledge the command code. Maxim Integrated Single-Channel 1-Wire Master Communication Examples (continued) A <byte> ...
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... Figure 10 Fast Mode Pullup Resistor Selection Chart Maxim Integrated Single-Channel 1-Wire Master must not exceed 300ns. Assuming maximum rise time, the maximum resistor value at any given capacitance C is calculated as: R bus capacitance of 400pF, the maximum pullup resistor would be 885I. ...
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... TDFN-EP* (2.5k pieces) +Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. *EP = Exposed pad. Maxim Integrated Single-Channel 1-Wire Master For the latest package outline information and land patterns (foot- prints www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. ...
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... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...