The S1C17M10 is said by Epson to be the first MCU it has developed for card reader tokens. Card reader tokens issue passwords while communicating with a user’s smart card. Although card reader tokens offer better security than other types of tokens, their power consumption is increasing due to the need to control communications with the card. Looking to reduce power consumption, Epson has equipped the MCU with an ISO 7816-3-compliant smart card interface.
The part operates from a supply ranging from 1.8V to 5.5V, with current consumption said to be 0.6µA in halt mode with the real time clock on. In run mode, the part is said to draw 145µA/MHz, with a maximum operating frequency of 16.8MHz.
In addition to UART, SPI and I2C interfaces, the MCU has an LCD driver that can drive a display with up to 1280dots (two lines of 10 alphanumeric characters) directly.
While the MCU will ship in a 128pin TQFP, it will also be available as bare die.
