High-pin count, general-purpose MCUs. Based on 3803L Group MCU, enhanced with multimaster I2C-bus™ interface (IIC) function. Maximum oscillation frequency is16.8MHz. Comes in a 64-pin package. Flash Memory version is pin-compatible and software compatible with 3804H Group. [I2C-bus™: I2C is a trademark of Philips Semiconductors Corporation.]