Overview of MT8870DNR1 by Microchip Technology Inc. The MT8870DNR1 is a DTMF (Dual-Tone Multi-Frequency) signaling circuit integrated into a compact…
Telecom Signaling Circuits
MT8880CS1 by Microchip Technology Inc
Overview of MT8880CS1 by Microchip Technology Inc. The MT8880CS1 is a Dual-tone Multi-frequency (DTMF) signaling circuit, manufactured using CMOS technology…