DS620U+ Maxim Integrated Products, DS620U+ Datasheet
DS620U+
Specifications of DS620U+
Related parts for DS620U+
DS620U+ Summary of contents
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GENERAL DESCRIPTION The DS620 digital thermometer and thermostat provides low-voltage (1.7V ≤ measurements with ±0.5°C accuracy from 0°C to +70°C and an operating temperature range of -55°C to +125°C. The DS620 communicates over a 2-wire digital interface. ...
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PIN DESCRIPTION PIN NAME 1 SDA Data Input/Output Pin for serial communication. Open drain. (No diode connection SCL Clock Input Pin for 2-wire serial communication Programmable Output Pin. Open drain. (No diode connection to V ...
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ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin, Relative to Ground Operating Temperature Range Storage Temperature Range Soldering Temperature ESD rating on all pins Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These ...
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AC ELECTRICAL CHARACTERISTICS EEPROM AC Electrical Characteristics PARAMETER EEPROM Write Cycle Time EEPROM Writes EEPROM Data Retention 2-Wire AC Electrical Characteristics PARAMETER SCL Frequency Bus Free Time Between a STOP and START Condition START and Repeat START Hold Time from ...
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Figure 2. Timing Diagram Table 1. Register Summary Parameter T and T Registers H L Size: 2-Bytes Note that the 3 LSbs are always “don’t cares” for writes (i.e., they are not saved) and always read out as 0s. Configuration ...
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Start Convert command. The R0 and R1 bits in the configuration register allow the user to set the conversion ...
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THERMOSTAT OPERATION The PO pin on the DS620 operates as the thermostat output when it is configured as PO P01 and P02 bits of the configuration register. In both of these configurations updated after every temperature conversion or ...
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PO PIN The PO pin is a user-programmable open-drain output, which is configured through the PO1 and PO2 bits in the configuration register. PO can operate as a thermostat output (PO of peripheral devices. When PO is configured as PO ...
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Figure 5. Configuration Register bit 15 bit 14 MS Byte DONE NVB bit 7 bit 6 PO2 PO1 LS Byte * Stored in EEPROM Table 5. Configuration Register Bit Descriptions Bit Name User Access Read Only DONE Read Only NVB ...
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Read/Write PO2 Read/Write PO1* A2 Read Only A1 Read Only A0 Read Only M* Read/Write * Stored in EEPROM Table 6. Resolution Configuration 2-WIRE SERIAL DATA BUS The DS620 communicates over a standard bidirectional 2-wire ...
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NACK instead of an ACK after the last data byte to indicate that it is finished receiving data. The master indicates a NACK by leaving the SDA line high during the ACK ...
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DS620 commands. See Writing to the DS620 or Reading from the DS620 for more information on reading from and writing to the DS620. WRITING TO THE DS620 The master can write data to the DS620 by issuing an address ...
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COPYING TO EEPROM COMMAND SEQUENCE Data is written to DS620 and then copied from SRAM to EEPROM BUS DS620 MASTER MODE MODE FIRST START TX RX <address, 0> <data> RX ...
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xxxxxxx1b TX RX START TX RX <address, 0> START TX RX <address, 0> WRITING THE 1SHOT BIT COMMAND SEQUENCE Configuring ...
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<address, 0> Configuring from 1SHOT to mode to continuous conversion mode. BUS DS620 MASTER MODE MODE <address, 0> ...