M-8880 Datasheet | Clare

M-8880 DTMF Transceiver - - - - - - - - - - - - - Advanced CMOS technology for low power consumption and increased noise immunity plete DTMF transmitter/receiver in a single chip Standard 6500/6800 series microprocessor port Central office quality and performance Adjustable guard time Automatic tone burst mode Call progress mode Single +5 Volt power supply 20-pin DIP and SOIC packages 2 MHz microprocessor port operation Inexpensive 3.58 MHz crystal No continuous f2 clock required, only strobe Applications include: paging systems, repeater systems/mobile radio, interconnect dialers, PBX systems, puter systems, fax machines, pay telephones, credit card verification Figure 1 Pin...