Two of the new family members are already sampling. The ADSP-BF561,
which includes two Blackfin cores, is available at 500, 600, and 750
MHz. Pricing for the ADSP-BF561 is $22.65 for 600 MHz chips and
$39.95 for 750 MHz chips in 10K quantities. The single-core ADSP-BF533,
which targets portable products such as digital cameras and wireless
handsets, is also currently sampling at 750 MHz. Pricing is set at
$31.95 for the 750 MHz version and $15.95 for an upcoming 600 MHz
version. The ADSP-BF561 and ADSP-BF533 are expected to reach
production in the second quarter of 2004, according to ADI. Speeds,
pricing, and availability for the remaining six chips have not yet
been announced.
Two of the processors’ key competitors come from Texas Instruments.
For more demanding applications, Blackfin will be up against the
TMS320C64x family, particularly the video-oriented TMS320DM64x chips.
TI now offers 1 GHz members of the ’C64x family (see this month's article TI Moves ’C64x
to 90 Nanometers, 1 GHz) that are much faster than the new
Blackfin chips, but for cost reasons, it’s unlikely that the two will
compete head-to-head: the 1 GHz TI chips start at a whopping $189.
Blackfin is much more likely to see competition from the ’DM64x
chips, which top out at 600 MHz and cost around $35. At 600 MHz,
the ’DM6401 BDTImark2000™ score is 5478, compared to the 750 MHz
single-core Blackfin score of 4190.
In low-power portable applications, Blackfin will compete with TI’s
TMS320C55x. The ’C55x, with a current top clock rate of 300 MHz,
is nowhere near as fast as Blackfin; the 300 MHz ’C55x has a
BDTImark2000™ score of 1460, compared to the single-core 750
MHz Blackfin’s score of 4190. In addition, Blackfin has an unusual
advantage over the ’C55x in that it provides exceptional support for
8-bit operations commonly used in video applications. In its favor,
the ’C55x offers partial code compatibility with its
predecessor, the ’C54x. Blackfin offers no compatibility with ADI’s
earlier fixed-point architecture, the ADSP-21xx.