M-8888 Overview
The M-8888 is a plete DTMF Transmitter Receiver that.
M-8888 Key Features
- plete chip Standard 8051, 8086/8 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