AN2595 Designing Applications with ST10F27xZx Devices

This document provides advice and guidance on designing applications based on devices of the ST10F27xZx family, including the ST10F276Z5, ST10F273Z4, ST10F272Z2, and ST10F271Z1. It covers topics such as using an external resonator, startup configuration, filtering, decoupling, reducing ADC conversion errors, memory interface, and interfacing with the L4969 CAN interface.


AN2595 Designing Applications with ST10F27xZx Devices - cover page
Brand
STMicroelectronics
Category
microcontrollers
Document type
Application Note
Language
English
Pages
20
File format
PDF
File size
235 KB
Published
07 August, 2012
Updated
28 September, 2023
MD5 checksum
37665240DADF2EF9C3CBE6C6D06C4CDD

About this manual

This document offers guidance on designing applications using devices from the ST10F27xZx family, which includes models such as the ST10F276Z5, ST10F273Z4, ST10F272Z2, and ST10F2712Z1. It details best practices for using external resonators with on-chip oscillators, including considerations for wide-swing and low-power oscillator variants.

The guide covers critical topics such as startup configuration for Port 0, filtering and decoupling strategies to ensure stability, recommendations for reducing ADC conversion errors, interfacing with external memory, and connecting the device to L4969 CAN interfaces. It also includes specific instructions for PCB layout and EMC compliance.

What's inside

  • Oscillator characteristics
  • Startup time
  • PCB layout for oscillator
  • Filtering and decoupling
  • Special pins configuration
  • Reset procedures
  • Analog digital converter (ADC)
  • External memory interface
  • Connecting to L4969

Specifications

Wide-swing oscillator frequency range4 to 12 MHz
Low-power oscillator frequency range4 to 8 MHz
32 kHz oscillator typeExternal crystal only

Frequently asked questions

What are the frequency ranges for the wide-swing and low-power oscillators?

The wide-swing oscillator supports 4 to 12 MHz, while the low-power oscillator supports 4 to 8 MHz.

Can the 32 kHz oscillator be driven by a clock source other than an external crystal?

No, the 32 kHz oscillator can only be driven by an external crystal and not by a different clock source.

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