DTMF Telecom IC, CMOS, SOIC-18, Industrial Temp
MT8870 Series 5 V 3.579545 Mhz 500 mW Integrated DTMF Receiver - SOIC-18
DTMF Signaling Circuit, CMOS, PDSO18, 0.300 INCH, LEAD FREE, MS-013AB, SOIC-18
DTMF RX 3.58MHz CMOS 5V 18-Pin SOIC T/R
MT8870DSR1-1 SOIC 3.58 MHz General Purpose IC
