Mobile Phone Bank Card Reader


Design files


This solution implements a magnetic card reader for smart phones based on MSP430G2432 microcontroller. The reader is designed for reading out the content of the bank card based on ISO7811 and sending the card's information (such as card ID and expiration data, etc.) back to the mobile host.

  • Ultra-low power: average 1uA standby and <2mA for reading (information can be stored for years)
  • Low cost design using an MSP430 Value Line MCU, a single channel op-amp, and a few passive components
  • Small form factor
  • Easy to integrate into a full system
  • Android test tool application provided"
??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDC472.ZIP (293 K)

Detailed schematic diagram for design layout and components

TIDR748.PDF (66 K)

Detailed schematic diagram for design layout and components

TIDR749.PDF (28 K)

Complete listing of design components, reference designators, and manufacturers/part numbers


Includes TI products in the design and potential alternatives.

General-purpose op amps

OPA348Single, 5.5-V, 1-MHz, low quiescent current (45-μA), RRIO operational amplifier

Data sheet: PDF
MSP430 microcontrollers

MSP430G243216 MHz MCU with 8KB Flash, 256B SRAM, 10-bit ADC, SPI/I2C, timer

Data sheet: PDF

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
User guide Mobile Phone Bank Card Reader Application Report Jun. 17, 2014

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​