A new method for quantized sampled-data synchronization of delayed chaotic Lur’e systems

•The extended Wirtinger-inequality-based Lyapunov approach is newly proposed.•A zero equality is formulated, which can capture the information of system at the dynamic partitioning point.•A quantized sampled-data controller is designed.•Compared with some existing results, less conservative synchronization criteria are established for chaotic Lur’e systems.