Rainbow-electronics DS1631 Manual de usuario

1 of 14 012402FEATURES§ Temperature measurements require noexternal components§ Measures temperatures from -55°C to +125°C(-67°F to +257°F)§ ±0.5°C

DS163110 of 14DS1631 COMMAND SETThe DS1631 command set is detailed below and is summarized in Table 6.Start Convert T [ 51h ]Initiates temperature co

DS163111 of 14NOTES:1) If only one byte of temperature data is needed, the master can issue a NACK followed by a STOPafter reading the first data byt

DS163112 of 14ABSOLUTE MAXIMUM RATINGS*Voltage on any Pin Relative to Ground -0.5V to +6.0VOperating Temperature Range -55°C to +125°CStorage Temperat

DS163113 of 14EEPROM AC ELECTRICAL CHARACTERISTICS(-55°C to +100°C; VDD = 2.7V to 5.5V)PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITSEEPROM Write Cycle

DS163114 of 14TYPICAL PERFORMANCE CURVE Figure 7TIMING DIAGRAM Figure 8-0.5-0.4-0.3-0.2-0.100.10.20.30.40.5-5 5 15253545556575Temperature (°C)+3s -3s

DS16312 of 14DETAILED PIN DESCRIPTION Table 1PIN SYMBOL DESCRIPTION1SDAData input/output pin for 2-wire serial communication port. Open drain.2SCLCloc

DS16313 of 14OVERVIEWThe DS1631 measures temperature using a bandgap-based temperature sensor. A delta-sigma analog-to-digital converter (ADC) convert

DS16314 of 14TEMPERATURE, TH, and TL REGISTER FORMAT Figure 2bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8MS ByteS26252423222120bit 7 bit 6 bi

DS16315 of 14THERMOSTAT OUTPUT OPERATION Figure 3CONFIGURATION REGISTERThe configuration register allows the user to program various DS1631 options su

DS16316 of 14CONFIGURATION REGISTER BIT DESCRIPTIONS Table 5BIT NAME(USER ACCESS)FUNCTIONAL DESCRIPTIONDONE—TemperatureConversion Done(Read Only)Power

DS16317 of 142-WIRE SERIAL DATA BUSThe DS1631 communicates over a standard bidirectional 2-wire serial data bus that consists of a serialclock (SCL) s

DS16318 of 14GENERAL 2-WIRE INFORMATION§ All data is transmitted MSb first over the 2-wire bus.§ A pullup resistor is required on the SDA line and, wh

DS16319 of 14 2-WIRE INTERFACE TIMING Figure 6C2a) Issue a "Start Convert T” or “Stop Convert T” CommandS 1100A2 A1 A0WAC7C6C5C4 AC3C1 C0PContro