AT30TS75-SS8-T Microchip

AT30TS75 9- to 12-bit Selectable, 0.5C Accurate Digital Temperature Sensor NOT RECOMMENDED FOR NEW DESIGNS DATASHEET Replaced by AT30TS74 and See Applicable Errata in Section 12. AT30TS75A Features Single 2.7V 5.5V supply Measures temperature from -55C to +125 C Highly accurate temperature measurements requiring no external components 1.0C accuracy (typical) over the -5C to +90 C range 2.0C accuracy (typical) over the -20 C to +125C range 3.0C accuracy (typical) over the -40 C to +125C range User-configurable resolution 9 to 12 bits (0.5 C to 0.0625C) User-configurable high and low temperature limits ALERT output pin for indicating temperature alarms 2 2-wire I C and SMBus compatible serial interface Supports SMBus Timeout Supports SMBus Alert and Alert Response Address (ARA) Selectable addressing allows up to eight devices on the same bus 2 I C High-Speed (HS) mode compatible 3.4MHz maximum clock frequency Built-in noise suppression filtering for clock and data input signals Low power dissipation 75 A active current (typical) during temperature measurements Shutdown mode to minimize power consumption 1 A shutdown current (typical) One-shot mode for single temperature measurement while in Shutdown mode Pin and software compatible to industry-standard LM75-type devices Industry standard green (Pb/Halide-free/RoHS compliant) package options 8-lead SOIC (150-mil) 8-lead MSOP (3 x 3mm) 8-pad Ultra Thin DFN (UDFN - 2 x 3 x 0.6mm) Atmel-8748E-DTS-AT30TS75-Datasheet 092013Table of Contents 1. Description . 4 2. Pin Descriptions and Pinouts 5 3. Block Diagram 6 4. Device Communication 7 4.1 Start Condition . 7 4.2 Stop Condition 7 4.3 Acknowledge (ACK) . 7 4.4 No-Acknowledge (NACK) . 8 5. Device Operation . 9 5.1 High-Speed Mode . 9 5.2 Temperature Measurements 10 5.3 Temperature Alarm . 10 5.3.1 Fault Tolerance Limits . 10 5.3.2 Comparator Mode 11 5.3.3 Interrupt Mode . 12 5.4 Shutdown Mode . 13 5.4.1 One-Shot Mode 13 6. Registers 14 6.1 Pointer Register . 14 6.2 Temperature Register . 16 6.3 Configuration Register 18 6.3.1 OS Bit . 19 6.3.2 R1:R0 Bits 19 6.3.3 FT1:FT0 Bits 19 6.3.4 POL Bit 19 6.3.5 CMP/INT Bit . 20 6.3.6 SD Bit 20 6.4 T and T Limit Registers 21 LOW HIGH 2 7. SMBus Features and I C General Call 23 7.1 SMBus Alert 23 7.2 SMBus Timeout 24 7.3 General Call 24 8. Electrical Specifications 25 8.1 Absolute Maximum Ratings 25 8.2 DC and AC Operating Range . 25 8.3 DC Characteristics . 26 8.4 Temperature Sensor Accuracy and Conversion Characteristics 27 8.5 AC Characteristics . 28 8.6 Power-Up Conditions . 29 8.7 Pin Capacitance . 29 8.8 Input Test Waveforms and Measurement Levels 29 8.9 Output Test Load 29 2 AT30TS75 DATASHEET Atmel-8748E-DTS-AT30TS75-Datasheet 092013