Renesas Technology Europe announced the H8SX/1653F, a member to date of the high performance H8SX family of 32-bit microcontrollers. The device offers 50 Dhrystone MIPS performance at 3.3V/50MHz and is supported by 384 Kbyte of full speed, zero-wait embedded Flash and 40 Kbyte RAM. It also boasts a USB slave module and six serial ports, which amongst them support async, sync, ISO7816 and IrDA modes as well as two channels of I2C. The serial ports on the H8SX/1653F are all independent from one another, each with its own baud rate generator and with four vectored interrupts per channel. They support LSB or MSB-first shift directions and can run as fast as 720 kbit/s in asynchronous mode.

Furthermore, the connectivity modules are all supported by either the Direct Memory Access (DMA) or the Data Transfer Controller (DTC) so that no CPU performance is wasted in moving the data to or from the modules. In addition the peripheral set features: a highly sophisticated six channel 16-bit timer unit (TPU) with 20 ns resolution and up to 16 input capture/output compare; additional 8-bit timers; real-time outputs that can generate up to eight channels of data patterns, useful for stepper motors, for example; a watchdog timer; a 10-bit ADC and an 8-bit DAC; and up to 84 general purpose input/output lines. The H8SX/1653F is upwards compatible with the family of H8 microcontrollers. It is available immediately in a 120-pin RoHS-compliant TQFP package and is supported by Renesas’ E10A-USB on-chip-debugger.