Datasheet ADT7310 (Analog Devices) - 6

ADT7310 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SCLK 1 8 VDD DOUT 2 ADT7310 7 GND DIN 3 6 TOP VIEW CT
005
CS (Not to Scale) 4 5 INT
07789- Figure 5. Pin Configuration
Table 4. Pin Function Descriptions Pin No. Mnemonic Description
1 SCLK Serial Clock Input. The serial clock is used to clock in and clock out data to and from any register of the ADT7310. 2 DOUT Serial Data Output. Data is clocked out on the SCLK falling edge and is valid on the SCLK rising edge. 3 DIN Serial Data Input. Serial data to be loaded to the part’s control registers is provided on this input. Data is clocked into the registers on the rising edge of SCLK. 4 CS Chip Select Input. The device is selected when this input is low. The device is disabled when this pin is high. 5 INT Overtemperature and Undertemperature Indicator. Logic output. Power-up default setting is as an active low comparator interrupt. Open-drain configuration. A pull-up resistor is required, typically 10 kΩ. 6 CT Critical Overtemperature Indicator. Logic output. Power-up default polarity is active low. Open-drain configuration. A pull-up resistor is required, typically 10 kΩ. 7 GND Analog and Digital Ground. 8 VDD Positive Supply Voltage (2.7 V to 5.5 V). The supply should be decoupled with a 0.1 µF ceramic capacitor to ground. Rev. A | Page 6 of 24 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications SPI Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Circuit Information Converter Details Temperature Measurement One-Shot Mode 1 SPS Mode CT and INT Operation in One-Shot Mode Continuous Read Mode Shutdown Fault Queue Temperature Data Format Temperature Conversion Formulas 16-Bit Temperature Data Format 13-Bit Temperature Data Format 10-Bit Temperature Data Format 9-Bit Temperature Data Format Registers Status Register Configuration Register Temperature Value Register ID Register TCRIT Setpoint Register THYST Setpoint Register THIGH Setpoint Register TLOW Setpoint Register Serial Interface SPI Command Byte Writing Data Reading Data Interfacing to DSPs or Microcontrollers Serial Interface Reset INT and CT Outputs Undertemperature and Overtemperature Detection Comparator Mode Interrupt Mode Applications Information Thermal Response Time Supply Decoupling Temperature Monitoring Outline Dimensions Ordering Guide