STP101 is a 3D pedometer chipset which include a G-sensor and MCU. It has adopted the impulse-type interface, with the 3D MEMS sensor (G sensor) and high precision of 3D pedometer algorithm, it can give a precisely pedometer in any direction.
High precision 3D pedometer algorithm
Low sleep current
Pulse output interface
1) Normal work mode The chipset goes into normal working mode when step motion is detected. The Step-out pin is in low level usually, it will output one high pulse with one step motion, and the high level of the pulse is around 50ms.
If the module doesn’t automatically come to sleep status within 20 seconds, the G sensor doesn’t work. the entire pedometer chipset in low power consumption mode, then the current is less than 4uA!
8-pin SOP (150mil) Outline Dimensions:
8-pin TSSOP Outline Dimensions:
LGA Package Outline Drawing:
Recommended PCB Layout: