The reason for using two capacitors in series with crystal oscillator is to resonate with the crystal inductance which cause the crystal to oscillate on its fundamental parallel resonant mode
Address inputs are buffered to minimize loading and are fully decoded on-chip
like in the case of face 328S will not exist
it resists water
providing additional security and visibility
UNI-T UT311A Digital Vibration Tester – Acceleration, Velocity & Displacement, 10Hz–15kHz, 2.4" Rotatable TFT Colour Display, USB-C Rechargeable, Compact Handheld db meter The reason for using twoUNI T UT311A Compact handheld digital vibration tester that measures acceleration, velocity and displacement for predictive maintenance of motors, pumps, fans and rotating machinery. Genuine UNI T product supplied by Digilog. pk with user manual and warranty. Key Features Measures acceleration, velocity & displacement Wide frequency: acceleration 10Hz15kHz (LO HI), velocity 10Hz1. 5kHz 2. 4" TFT colour display with auto rotate full view Long & short