ST AN1724 Application Note

This document is an application note on the conversion between the uPSD3200 and uPSD3300 series. It describes the differences between the two series and provides methods for migrating designs. Additionally, the document identifies differences in SFRs and interrupt vectors that may impact firmware. The document also provides a summary of the new functions in the uPSD3300 series.


ST AN1724 Application Note - cover page
Brand
STMicroelectronics
Category
microcontrollers
Document type
Application Note
Language
English
Pages
24
File format
PDF
File size
159 KB
Published
07 August, 2012
Updated
28 September, 2023
MD5 checksum
09F897D32BC746F7DE208B39F821F8E8

About this manual

This document provides a conversion guide for migrating designs from the uPSD3200 series to the uPSD3300 series. It details differences in pin definitions, special function registers (SFRs), and interrupt vectors, offering techniques to accept either series during manufacturing.

What's inside

  • Summary of Differences
  • Summary of new uPSD3300 functions
  • Pin Definitions
  • Mandatory PIN Changes
  • Conditional PIN Changes
  • Special Function Register Differences
  • Interrupt Vector Differences

Frequently asked questions

What supply voltage is required for the uPSD3300 MCU core?

The uPSD3300 MCU core requires a 3.3V supply, even when used in a 5V system.

How many clocks does the uPSD3300 use per instruction?

The uPSD3300 uses just 4 clocks per instruction.

What is the maximum clock frequency for a 3.3V uPSD3300 device?

A 3.3V uPSD3300 device can be clocked up to 40MHz.

What is the LVD trip point for uPSD3300 devices?

The Low-Voltage Detect trip point is set for the 3.3V VCC supply level at 2.5V.

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