Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital sections separate. Additionally, it's recommended to use a decoupling capacitor (e.g. 0.1uF) between VCC and GND, and to keep the signal traces as short as possible.
The DS96F172ME/883 is rated for operation from -55°C to 125°C. To ensure operation within this range, ensure proper heat sinking, avoid overheating, and use thermal management techniques such as heat sinks, thermal interfaces, and airflow management.
The recommended power-up sequence is to apply VCC before applying any input signals. It's also recommended to ensure that all input signals are at a valid logic level before applying VCC.
The DS96F172ME/883 is designed to be radiation-hardened, but it's still possible for radiation-induced errors to occur. To mitigate this, use error detection and correction mechanisms such as checksums, CRCs, and ECC, and implement fault-tolerant design techniques.
The recommended method for programming the DS96F172ME/883 is to use the Texas Instruments' Code Composer Studio (CCS) integrated development environment (IDE) or other supported development tools.