AN1544 is an application note on how to design applications based on ST10F269. The note contains six main items: the use of external resonator with the on-chip oscillator, startup configuration and necessary precautions, filtering, decoupling and special pins use, recommendations to reduce ADC conversion errors, memory interface, and interfacing with the L4969 CAN interface.
This document serves as a guide for designing applications based on the ST10F269 microcontroller. It offers specific advice on configuring the on-chip oscillator with external resonators, including recommended components from manufacturers like Murata and NDK. The note details start-up times, PCB layout considerations to ensure stability and EMC compliance, and configurations for special pins such as EA and RPD.
Measurements show start-up times in the 0.05ms range.
The minimum transconductance (gm) of the ST10F269 oscillator inverter is 5 mA/V.
The recommended maximum value for pull-down resistors is 8kΩ, though commonly used values are 10kΩ.