Supports stable power supply, incorporates an on-chip debugger function, 64 KB ROM and 2 KB of RAM
SANYO Semiconductor, an ON Semiconductor company, has introduced a new 8-bit flash microcontroller with USB 2.0 Full-Speed interface function and built-in DC-DC converter (step-up/step-down circuit) with selectable output voltages.
The LC87F1864A device provides an offering that supports stable power supply, space efficient and cost effective designs in USB card reader products, such as integrated circuit (IC) cards, the company said.
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.
The LC87F1864A device incorporates an on-chip debugger function, a 16-bit timer/counter (divisible by 8-bit timer with 8-bit pulse width modulation (PWM) possible, 64 KB read only memory (ROM) and 2 KB of random access memory (RAM).
The IC cards interface is fully compliant with ISO7816-3 standards, with the addition of a Universal Asynchronous Receiver Transmitter (UART).
The USB feature enables various types of data held on the IC card to be transmitted via USB to personal computers.
SANYO Semiconductor Micon Development Department general manager Hideo Kondo said the LC87F1864A incorporates a highly versatile DC-DC converter, allowing for selection of step-up/step-down statuses and selection of output voltages.
"Incorporating the DC-DC converter feature, which is normally used as an external IC, into the microcontroller minimises the circuit-board areas, reduces costs for end-products, and controls the output voltage through an ON/OFF switch," Kondo said.
The sample shipping of the new microcontroller starts this month at a price of $3 per unit in quantities of 10,000 units.
