Electronic Design

160-MHz Flash MCU Runs Single-Cycle Flash And Can Handle Up To A Pair Of Motors

Renesas' SH7211F 32-bit superscaler microcontroller cranks out 320 MIPS. Located on the SH-2A CPU core, it comes with 512 kbytes of flash memory and 32 kbytes of RAM. An external bus controller can handle a range of interfaces, including flash, SRAM, and SDRAM. Its six-cycle interrupt response is possible because there are 16 register files—one per interrupt, plus the main application. Dual multifunction pulse-width modulation units can each handle three-phase motor drive chores. The 12-bit, eight-channel successive approximation register analog-to-digital converter can sample two channels at a time. It has a 2.5-µs cycle time. There also is a dual-channel, 8-bit digital-to-analog converter. A four-channel serial interface is included along with an I2C interface. The SH7211F comes in a 144-pin low-profile quad flat package (20 by 20 mm) and costs $19.84. Developers can check out a real development board by remote control via Renesas' Web site.


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