Mitel MT8870DE Integrated DTMF Reveiver (Pack of 1) Go to amazon.com Related posts Top 10 best ic mt8870: Which is the best one in 2022? FeatureThe product type is chipNumber of Pins : 18 Pin;Each Size(Approx) : 22.5 x 9 x 8.5mm /0.48" x 0.35" x 0.33" (L*W*H)Made in china DescriptionProduct Type is MT8870 double row dip18 PCB board DTMF receiver IC chip, number of pins: 18 pin, made in China.