The design and verification of I2C interface circuit in multi-mode multi-band mobile digital TV tuner in TSMC 0.13 μm CMOS technology are presented.The I2C interface circuit is designed following digital IC design flow and timing of this circuit is verified strictly.A satisfactory layout area and power consumption are obtained after placement and routing.Post-layout simulation results show that the circuit meets the timing requirements of I2C protocol in 100 MHz clock and can be widely used in mobile digita...