Octal UART for 3.3 V and 5 V supply voltage - Application: Data Communication ; Function: Receivers/Transmitters ; Number of pins: 84 ; Operating temperature: -40~85 Cel; Receiver/Transmitter type: Octal UARTs; Package: SOT189-2 (PLCC84); Container: Reel Dry Pack, SMD, 13"
A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a common ground point for the analog and digital grounds.
Use a reliable communication protocol like SPI or I2C, and ensure proper signal termination and shielding. Also, use a common clock source and ensure the microcontroller and SC28L198A1A are synchronized.
The SC28L198A1A has a maximum junction temperature of 150°C. Ensure good thermal conductivity between the device and the PCB, and consider using a heat sink or thermal pad for high-power applications.
Use ESD protection devices like TVS diodes or ESD arrays on the input/output lines, and ensure the PCB design includes ESD protection features like guard rings and ESD-safe layout.
The SC28L198A1A requires a specific power-up sequence to ensure proper operation. Ensure the analog power supply (VCCA) is powered up before the digital power supply (VCCD), and that the clock signal is stable before enabling the device.