AT30TS75A 9- to 12-bit Selectable, 0.5C Accurate Digital Temperature Sensor DATASHEET See Errata in Section 12. Features Single 1.7V to 5.5V Supply Measures Temperature from -55C to +125 C Highly Accurate Temperature Measurements Requiring No External Components 0.5C Accuracy (Typical) Over the 0C to +85 C Range 1.0C Accuracy (Typical) Over the -25C to +105C Range 2.0C Accuracy (Typical) Over the -40C 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 85 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 2.0 x 3.0 x 0.6mm) Atmel-8839I-DTS-AT30TS75A-Datasheet 102014Table 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 . 27 8.6 Power-Up Conditions . 28 8.7 Pin Capacitance . 29 8.8 Input Test Waveforms and Measurement Levels 29 8.9 Output Test Load 29 2 AT30TS75A DATASHEET Atmel-8839I-DTS-AT30TS75A-Datasheet 102014