Product Range:smart Arm Based Microcontrollers; Architecture:arm7Tdmi; No. Of Bits:32Bit; Cpu Speed:55Mhz; Program Memory Size:64Kb; Ram Memory Size:16Kb; No. Of Pins:64Pins; Mcu Case Style:qfn; No. Of I/o S:32I/o S; No. Of Timers:3 Rohs Compliant: Yes