Renesas Technology announced the SH72531 120MHz 32-bit SuperH microcontroller (MCU). The SH72531 MCU can implement the fine-grained control of automotive engines and transmissions needed to achieve smooth, powerful performance and high efficiency with low emissions. The new SuperH microcontroller is value engineered to cost less and consume less power, while meeting industry requirements for high reliability and operation at temperatures as high as 125°C. The SH72531 (R5F72531KFPV) is priced at $87.
The SH72531′s 1.25 megabytes (1.25MB) on-chip flash memory operates at 100MHz speeds, but works in conjunction with a low-power cache to deliver performance roughly equivalent to single-cycle access at 120MHz. Furthermore, 32 kilobytes (32KB) of that flash is allocated for data storage and can be overwritten while the MCU is operating. The flash provides roughly the same functionality as EEPROM and eliminates the need for external memory that increases system cost.
The SH72531 has the same SH-2A high-performance 32-bit CPU core with a floating point unit (FPU) as the SH72544R for full software compatibility, and achieves 240 MIPS processing performance at 120MHz. Yet the 3.3V/5V chip consumes just 350mW. Peripheral functions that match actual application requirements make possible a compact (24mm x 24mm) LQFP package with 176 pins, 35% fewer than the SH72544R. The functions and interfaces that enable highly precise real-time control of engines and transmissions include the ATU-III multifunction timer, a fast 12-bit A/D, a CAN interface, and a high-speed serial interface.
More info: Renesas Technology