PT2257 V1.5 5 March 2013 SOFTWARE SPECIFICATION PT2257 ADDRESS PT2257 Address is shown below: 1 MSB 0 0 0 1 0 0 0 LSB I2C BUS INTERFACE START TIME After Power is turned ON, PT2257 needs to wait for a short time in order to insure stability. SilanSemiconductorsSC5388HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTDRev: 1.02000.12.318APPLICATION CIRCUITDIRECT KEY MODE1 datasheet search, datasheets ... PT2381 PT2381 is a Pre-set Equalizer ic Utilizing CMOS Technology Specially Designed For Audio Equipment. PT2386 PT2386 is an Enhanced 3D Audio Effect ic Utilizing CMOS Technology Specially Designed For The Generation of Audio Equipments. PT2387 PT2387 is a 3D Effect Audio Processor ic Utilizing CMOS Technology. Princeton Technology Corp. 5-Mode Preset Equalizer IC with Bass Booster & 3D Effect PT2389 Tel : 886-2-29162151 ... Datasheets for electronics components.