Ex R&D spare parts
I am currently working through a spare parts drawer (from my previous business) of weird and wonderful special purpose chips, this is one of those.
While not likely to be used in the service environment these days (old technology), this chip has interesting functions if someone wished to investigate further.
MITEL - DTMF Transceiver
Type: MT8880AE
Complete DTMF transmitter & receiver
Low power consumption (CMOS)
Microprocessor port
Adjustable guard time
Automatic tone burst mode
Call progress mode
If you are thirsty for more details, HERE is a link to the datasheet
20 pin DIL Plastic
NEW Old Stock
Another chip that has been in the spare parts drawers for yonks! I can see the legs remain quite 'shiny' and of course, straight ... this chip should still be perfectly serviceable.
This will be supplied exactly as it was stored, on a bed of ESD foam and within a sealed clear plastic packet.