MLX90821 Relative Pressure Sensor IC Pin Definitions and Descriptions Pin number Description Pin number Description 1 Not Connected 16 Not Connected 2 Not Connected 15 Not Connected 3 Not Connected 14 Not Connected 4 Not Connected 13 Not Connected 5 Ground 12 Test pin 6 NTC input 11 SENT output 7 Ground 10 Test pin 8 Analog output 9 Supply input Table 2: Pin out definitions and descriptions Figure 2: Package marking (top view) Symbol Function / Description ZZZZZZZZZZ Assembly lot number YY Year of assembly WW Calendar week of assembly AAA MEMS and ASIC traceability letter Table 3: Package marking definition REV 002 – 17 OCT 2019 Page 6 of 39 3901090821