The MXT2952TD 2.0 series of secure touchscreen controllers from Microchip Technology was introduced to assist EV charger builders in safeguarding their payment systems.
When a user enters their personal identification number (PIN) on the touchscreen of a typical touch-enabled human machine interface (HMI) or radio frequency identification (RFID) combination-based payment system, it is susceptible to hacking attacks through malicious software updates or man-in-the-middle attacks. To prevent hacking, physical mesh barriers and sensors are frequently placed in the vicinity of these integrated circuits (ICs). Software integrity is protected via frequent software reflashes and device resets.
Encrypting touch data and using cryptography to authenticate software updates are features built into the MXT2952TD 2.0 series, which helps to reduce risk and comply with PCI certification requirements. Building physical barriers for hack prevention is particularly challenging and costly when the RFID reader IC and the touchscreen controller are located on separate printed circuit boards (PCBs). The MXT2952TD 2.0’s embedded software offers EV charger makers an easier way to comply with security laws while avoiding the expense of installing a second, more costly touchscreen payment module to the charger.
The outdoor nature of EV charger HMIs demands they withstand harsh weather conditions, function accurately in the presence of moisture and are resistant to vandalism. MXT2952TD 2.0 touch controller-based touchscreens remain effective when designed with IK10 standard 6 mm-thick glass, anti-reflective, anti-glare and anti-fingerprint coatings and IR filter/UV filter layers. Microchip’s proprietary differential touch sensing delivers exceptional noise immunity for superior touch performance even when used with thick gloves.
“The maXTouch 2952TD 2.0 family provides EV charger designers with a cost-effective, secure design architecture for implementing credit card payments with PIN entry on their touchscreens,” said Patrick Johnson, senior corporate vice president overseeing Microchip human machine interface division. “Combined with the rugged, outdoor HMI touchscreen technology that Microchip maXTouch portfolio is known for, the new addition to the 2952TD family of touchscreen controllers offers our customers secure designs and the exceptional touch performance necessary for outdoor applications.”
In addition to EV chargers, the MXT2952TD 2.0 family is well-suited for most unattended outdoor payment terminals such as parking meters, bus ticketing meters and other types of point-of-sale (POS) systems.
The 2952TD 2.0 is specifically optimized for 20” screen sizes and its sister party, the MXT1664TD, is available for 15.6” screen sizes.
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