Motorola offers three megabits on-chip memory on new digital signal processor

Motorola offers three megabits on-chip memory on new digital signal processor
Tom Foremski
Motorola introduced a fast DSP chip with three megabits of on-chip static RAM and designed for network and communications applications.
The 24-bit DSP56311 has a performance of 255 Mips with an enhanced filter coprocessor filter algorithms working in parallel and allowing functions such as echo cancelling and voice coding to run in parallel. Motorola says that such an architecture is ideal for wireless and wireline infrastructure and Internet telephony applications where a single DSP handles several voice and data channels.
“Motorola has taken advantage of its advanced 0.18 micron technology to enable increased DSP performance per square inch and reduced system price and power dissipation,” said Max Baron, senior analyst for market research company Cahners In-Stat.
Samples of the 56311 are expected in September with volume production in late fourth quarter. The price is $34.30 in 50,000-piece quantities.


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