SUNNYVALE, Calif. Mitsubishi Electronics America Inc. has expanded its embedded-flash microcontroller line with two chips that deliver in-system programmability for field applications.
Offering reprogrammability to designers who need to alter code or lookup tables, Mitsubishi said its M38039FFFP and M38049FFSP 8-bit embedded-flash MCUs feature a smaller footprint than the company's earlier devices, and feature typical power dissipation of 5 volts at 60 milliwatts.
With 60 kbytes of on-chip flash and 2 kbytes of embedded RAM, the MCUs allow greater flexibility in industrial, commercial and consumer applications, according to Mitsubishi (Sunnyvale, Calif.). In the case of parking meters, for example, the chips enable customers to achieve economies of scale by building a single system board that can be programmed according to where and when the meters are installed, the company said.
The new devices feature improved multitasking capabilities through the addition of nine external interrupts, while the CPU core can select among 16 channels for input to the chips' 10-bit A/D converter. The M38039FFFP includes synchronous and synchronous/asynchronous UART ports, while the M38049FFSP adds an I2C serial port.
The chips also are offered with a range of software development tools, including Mitsubishi's PC4701HS in-circuit hardware emulator, which comes with the PD38 Windows-based debugger, emulation pod, and device. Developers writing software in assembly language can use Mitsubishi's SRA74 Assembler. Those writing in C can use the IAR Embedded Workbench for 740 from IAR Systems, which comes with IAR Systems' optimized C compiler and a fully integrated development environment.
The M38039FFFP and M38049FFSP are offered in 64-pin SDIP and 0.5-mm pitch and 0.8-mm pitch QFPs. Samples are available now and volume production is scheduled for the fourth quarter. The M38039FFFP is priced at $13 each, and the M38049FFSP featuring the I2C bus costs $14 each in 10,000-unit quantities.