DatasheetsPDF.com

DS1624 Dataheets PDF



Part Number DS1624
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description Digital Thermometer/Memory
Datasheet DS1624 DatasheetDS1624 Datasheet (PDF)

DS1624 Digital Thermometer and Memory General Description The DS1624 consists of two separate functional units: a 256-byte nonvolatile E2 memory and a direct-to-digital temperature sensor. The nonvolatile memory is made up of 256 bytes of E2 memory. This memory can be used to store any type of information the user wishes. These memory locations are accessed through the 2-wire serial bus. The direct-to-digital temperature sensor allows the DS1624 to measure the ambient temperature and report th.

  DS1624   DS1624


Document
DS1624 Digital Thermometer and Memory General Description The DS1624 consists of two separate functional units: a 256-byte nonvolatile E2 memory and a direct-to-digital temperature sensor. The nonvolatile memory is made up of 256 bytes of E2 memory. This memory can be used to store any type of information the user wishes. These memory locations are accessed through the 2-wire serial bus. The direct-to-digital temperature sensor allows the DS1624 to measure the ambient temperature and report the temperature in a 12-bit word with 0.0625°C resolution. The temperature sensor and its related registers are accessed through the 2-wire serial interface. Figure 1 shows a block diagram of the DS1624. Benefits and Features ●● Reduces Component Count with Integrated Temperature Sensor and Nonvolatile E2 Memory • Measures Temperatures from -55°C to +125°C in 0.0625°C Increments • ±0.5°C Accuracy from 0°C to 70°C • 256 Bytes of E2 Memory for Storing Information Such as Frequency Compensation Coefficients • No External Components ●● Easy-to-Use 2-Wire Serial Interface • Temperature is Read as a 12-Bit Value (2-Byte Transfer) ●● Available in 8-Pin SO and DIP Packages Figure 1. Block Diagram Ordering Information appears at end of data sheet. VDD SCL SDA A0 ADDRESS AND A1 I/O CONTROL A2 GND STATUS REGISTER AND CONTROL LOGIC TEMPERATURE SENSOR EEPROM MEMORY (256 BYTES) DS1624 19-6288; Rev 5; 8/15 DS1624 Digital Thermometer and Memory Absolute Maximum Ratings Voltage Range on Any Pin Relative to Ground.....-0.5V to +6.0V Continuous Power Dissipation (TA = +70°C) PDIP (derate 9.10mW/°C above +70°C).................727.30mW Operating Temperature Range.......................... -55°C to +125°C Storage Temperature Range............................. -55°C to +125°C Soldering Temperature (reflow)........................................+260°C Lead Temperature (soldering, 10s).................................. +300°C This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect device reliability. Package Thermal Characteristics (Note 1) PDIP Junction-to-Ambient Thermal Resistance (θJA).........110°C/W Junction-to-Case Thermal Resistance (θJC)................40°C/W Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Recommended Operating Conditions PARAMETER Supply Voltage SYMBOL VDD (Note 2) CONDITIONS MIN TYP MAX UNITS 2.7 5.0 5.5 V DC Electrical Characteristics (VDD = 2.7V to 5.5V, TA = -55°C to +125°C, unless otherwise noted.) (Note 3) PARAMETER SYMBOL CONDITIONS Thermometer Error TERR 0°C to +70°C -55°C to +125°C Thermometer Resolution 12-bit Low-Level Input Voltage High-Level Input Voltage Pulse Width of Spikes That Must Be Suppressed by the Input Filter VIL VIH tSP Fast mode Low-Level Output Voltage (SDA) Input Current Each I/O Pin I/O Capacitance VOL1 VOL2 CI/O 3mA sink current (Note 2) 6mA sink current (Note 2) 0.4 < VI/O < 0.9VDD (Note 4) Temperature conversion Active Supply Current ICC E2 write (Notes 5, 6) Communication only Standby Supply Current ISTBY (Notes 5, 6, 7) MIN TYP MAX ±0.5 ±2.0 0.0625 -0.3 0.7 x VDD 0.3 x VDD VDD + 0.3 UNITS °C °C V V 0 50 ns 0 0.4 V 0 0.6 -1 +1 µA 10 pF 1250 400 µA 125 1 3 µA www.maximintegrated.com Maxim Integrated │  2 DS1624 Digital Thermometer and Memory AC Electrical Characteristics (VDD = 2.7V to 5.5V, TA = -55°C to +125°C, unless otherwise noted. All values referred to VIH = 0.9VDD and VIL = 0.1VDD.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Temperature Conversion Time EEPROM Write Cycle Time EEPROM Endurance EEPROM Data Retention SLK Clock Frequency tTC tWR NEEWR tEEDR fSCL 0°C to +70°C (Note 8) -20°C to +70°C TA = +25°C -40°C to +70°C (Note 9) Fast mode Standard mode (Note 10) 200 ms 50 ms 10k 20k 40k 80k Write Cycles 10 20 Years 0 400 kHz 0 100 Bus Free Time Between a STOP and START Condition tBUF Fast mode Standard mode (Note 10) 1.3 4.7 µs Hold Time (Repeated) START Condition tHD:STA Fast mode Standard mode (Notes 10, 11) 0.6 4.0 µs Low Period of SCL Clock tLOW Fast mode Standard mode (Note 10) 1.3 4.7 µs High Period of SCL Clock tHIGH Fast mode Standard mode (Note 10) 0.6 4.0 µs Setup Time for a Repeated START Condition tSU:STA Fast mode Standard mode (Note 10) 0.6 4.7 µs Data Hold Time tHD:DAT Fast mode Standard mode (Note 10) 0 0 0.9 µs 0.9 Data Setup Time tSU:DAT Fast mode Standard mode (Notes 10, 11, 12) 100 250 ns Rise Time of Both SDA and SCL Signals Fall Time of Both S.


MAX31726 DS1624 DS1629


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)