Datasheet AD7814 (Analog Devices) - 4

AD7814 PIN FUNCTION DESCRIPTIONS Pin SOT-23 MSOP Mnemonic Pin No. Pin No. Description
GND 1 7 Analog and Digital Ground DIN 2 6 Serial Data Input. Serial data to be loaded to the part’s control register is provided on this input. Data is clocked into the control register on the rising edge of SCLK. VDD 3 5 Positive Supply Voltage, 2.7 V to 5.5 V SCLK 4 4 Serial Clock Input. This is the clock input for the serial port. The serial clock is used to clock data out of the temperature value register of the AD7814 and to clock data into the control register on the part. CS 5 3 Chip Select Input. Logic input. The device is selected when this input is low. The SCLK input is disabled when this pin is high. DOUT 6 2 Serial Data Output. Logic output. Data is clocked out of the temperature value register at this pin. Data is clocked out on the falling edge of SCLK. NC 1, 8 No Connect
PIN CONFIGURATIONS SOT-23 MSOP GND 1 6 DOUT NC 1 8 NC AD7814 AD7814 DIN 2 5 CS 2 7 DOUT GND TOP VIEW TOP VIEW (Not to Scale) CS 3 (Not to Scale) 6 DIN V 3 4 DD SCLK 4 SCLK 5 VDD NC = NO CONNECT
–4– REV. E Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN FUNCTION DESCRIPTIONS PIN CONFIGURATIONS CIRCUIT INFORMATION CONVERTER DETAILS TEMPERATURE VALUE REGISTER SERIAL INTERFACE Read Operation Write Operation MICROPROCESSOR INTERFACING AD7814 to MC68HC11 Interface AD7814 to 8051 Interface AD7814 to PIC16C6x/7x Interface AD7814 to ADSP-21xx Interface MOUNTING THE AD7814 SUPPLY DECOUPLING OUTLINE DIMENSIONS Revision History