Portable POS

Products and reference designs

Portable POS

Block diagram


Our integrated circuits and reference designs will help jumpstart your handheld electronic fund transfer (EFT) transaction terminal project through a secure processor, a small and efficient battery management system and low-power wireless and wired interfaces according to your needs.

Design requirements

Portable point-of-sale (POS) systems require:

  • Sitara ARM processors enable cryptography, secure boot, tamper protection, secure storage and more.
  • Low-power RF, RFID and NFC chipsets that allow contactless payment.
  • Highly-integrated PMICs to regulate core, memory and IO power and a small and efficient battery management system.
  • Stepper motor driver to control the thermal printer which prints the fiscal receipt.

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Block diagram

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Technical documentation

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Type Title Date
Analog Design Journal Li-ion battery-charger solutions for JEITA compliance 26 Feb 2010
Technical article Transform the way you charge your devices with USB Type-C and PD PDF | HTML 24 Jul 2023
Technical article How to protect your EPOS processor from short-circuits in 9-V USB charging PDF | HTML 22 Sep 2023
Application note Buck boost charger with power path for Super Cap 15 Aug 2018
White paper Sitara AM438x processor: tamper protection 14 Aug 2017
User guide Powering the AM335x, AM437x, and AM438x with TPS65218D0 (Rev. B) 11 May 2020
User guide TPS65910Ax User's Guide for AM335x Processors (Rev. F) 11 Dec 2017
White paper Enabling modern retail and logistics automation 09 Jun 2021

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