The H8S/2378 and H8S/2378R groups achieve low-voltage and high-speed operation with 3.3-V single power supply (33 MHz/3.3 V). In addition to the standard peripherals, the SDRAM interface is incorporated (H8S/2373R, H8S/2375R, 2377R, and H8S/2378R) and the enhanced peripherals are provided such as 5-ch serial communication interface (I2C ´ 2 ch) and 16-ch A/D converter. Furthermore, an on-chip debugging function is incorporated in the H8S/2378BF, H8S/2378RF, H8S/2377F, and H8S /2377RF, enabling you to implement a development environment at lower cost. The 120-pin and 128-pin packages are available.