The single-chip controller is the first PCI secure System-on-Chip (SoC) for mobile payment terminals to be based on a general-purpose microcontroller for robust performance and low power at a cost-effective price. It was developed through a combination of YouTransactor’s market knowledge and intellectual property of security and point-of-sale payment terminals and applications, and ST’s chip-design skills and intellectual property including cyber-protection and sophisticated display-graphics control,
The YTSECPCI SoC commercialized by YouTransactor with the support of ST has already been embedded and deployed in 50,000 payment terminals, with over 1 million units ordered for 2019-2020. The new device embeds all the physical security mechanisms required by PCI PTS (Pin Transaction Security) to ensure the safety of transactions and user data. These include mesh monitoring, switch monitoring, support for secure application loading and secure boot, advanced cryptographic libraries, active software and hardware tamper detection with data-erase, card-data and pin-code protection, key management, and real-time clock (RTC) integrity protection.
Contact and contactless payment modes are all supported, and the chip comes pre-certified to PCI specifications to ease final approval of customers’ products. In addition to mobile point-of-sale (POS) terminals, the SoC can also be integrated in devices such as vending machines, IoT, cash registers, smartphones or retail hardware. The chip leverages the advanced features and ultra-low-power technologies of ST’s STM32L4 MCUs. Highlights of the MCU include 100DMIPS/273CoreMark processing performance, multiple power-management modes to help minimize overall energy consumption, large on-chip data and program memory, and ST’s unique Chrom-ART Accelerator to handle sophisticated user-interface graphics.
To further aid development, ST and YouTransactor have also created a dedicated evaluation board and reference design containing the YTSECPCI.