SANYO Semiconductor Introduces 8-Bit USB Flash Microcontroller for Integrated Circuit Card Applications

The step-up circuit (charge pump) and step-down circuits (series regulator) incorporated in the LC87F1864A drive output voltage values of 5.0 volts (V), 3.0 V and 1.8 V, or the alteration of output voltage settings via an external resistor, thus enabling stable power supply to peripheral devices. With the addition of a Universal Asynchronous Receiver Transmitter (UART), the IC cards interface is fully compliant with ISO7816-3 standards. In addition to a wide variety of USB card reader products, the USB feature enables various types of data held on the IC card to be transmitted via USB to personal computers.

“The LC87F1864A incorporates a highly versatile DC-DC converter, allowing for selection of step-up/step-down statuses and selection of output voltages,” said Hideo Kondo, general manager of SANYO Semiconductor's Micon Development Department. “Incorporating the DC-DC converter feature, which is normally used as an external IC, into the microcontroller minimizes the circuit-board areas, reduces costs for end-products, and controls the output voltage through an ON/OFF switch.”