Microcontrollers are armed with fast cores

The LH754xx from Sharp's Bluestreak ARM family is perhaps the fastest ARM7 chip on the market, as the clock speed is up to a racy 90MHz.

The LH754xx from Sharp's Bluestreak ARM family is perhaps the fastest ARM7 chip on the market, as the clock speed is up to a racy 90MHz.

And this specification is over the full industrial temperature range of -40 to +80C.

These general-purpose 16/32bit ARM7TDMI-S-based micros come complete with an on-chip LCD controller for both grey-scale and colour LCD applications.

Both STN and TFT displays are fully supported.

Two of the family support the CAN 2.0B bus protocol (LH75400 and LH75401), whereas the LH75410 and LH75411 are available without CAN.

The four controllers combine the performance of 32bit cores with 16bit external addressing.

They feature an eight-input, 10bit A/D convertor with integrated touch screen controller, 32Kbyte of on-chip SRAM and a vectored interrupt controller to speed the serving of interrupts.

Also on board are three UARTs, a synchronous serial port, three 16bit counter/timers with capture, compare and pulsewidth modulation logic, a watchdog timer and a low-voltage detector.

All parts operate at up to 90MHz at 3.3V over the industrial temperature range of -40 to +80C in an economical 144-contact low profile QFP package, with integrated support for JTAG debuggers and a low-cost development kit.

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