New 64-Bit RISC Microprocessor From Toshiba Consumes Only 0.6W Power at Maximum 300MHz Operating Frequency
Flexible MPU Features 32-bit SysAD Bus Interface Scheme
SAN JOSE, Calif., Dec. 11 /PRNewswire/ -- Toshiba America Electronic Components, Inc. (TAEC)* today announced a new member of its TX49 family of MIPS-based reduced instruction set computer (RISC) microprocessors (MPUs). The new 64-bit MPU, designated TMPR4955BFG-300, is based on the Toshiba Corporation (Toshiba) TX49/H3 core and is fabricated with 0.13-micron complementary metal oxide semiconductor (CMOS) process technology. Power consumption is only 0.6 watt (W) when operating at its maximum frequency of 300 megahertz (MHz), the lowest power consumption of any processor in this product category. Running 1.5 times faster than the previous generation 200MHz product and utilizing a 32-bit SysAD bus, it is targeted at embedded applications such as color laser printers, high-performance set top boxes and networking devices that handle large amounts of graphics data.
"Toshiba continues to migrate its standard 64-bit MIPS RISC processors to higher and higher frequencies for applications that require higher CPU performance and greater system interface flexibility," said Farhad Mafie, vice president of the ASSP Business Unit at TAEC. "By choosing the TMPR4955BFG-300 processor, system architects gain the freedom to either use off-the-shelf SysAD-compatible chipsets to save development time or develop their own specific solutions around the SysAD bus with greater customization."
According to Tetsuro Wada, platform development director of the ASSP Business Unit at TAEC, "Toshiba's 300MHz TMPR4955BFG-300 64-bit RISC processor with its built-in IEEE754-compatible floating point unit (FPU), 32 kilobytes (K-bytes) 4-way set-associative instruction and data caches and 32-bit SysAD interface bus is well positioned for embedded systems that use standard SysAD bus-compatible off-the-shelf chipsets for various system interfaces."
Key Features
Key features of the microprocessor are as follows:
-- Integrates Toshiba's latest 64-bit core CPU, TX49/H3, which is
fabricated with 0.13-micron CMOS process technology and operates at
300MHz.
-- Incorporates a four-way set-associative large-capacity cache memory
(32K-bytes instruction cache and 32K-bytes data cache)
-- Integrates an FPU that is separate from the integer logic unit and
realizes higher performance by making it possible to perform integer
operations and floating point operations independently.
-- Utilizes a 32-bit SysAD Bus with multiplexed address and data as a
system interface in order to interface with other SysAD-compatible
devices.
-- CPU core contains a dedicated debugging support unit (DSU) and uses an
external enhanced JTAG (EJTAG) interface to perform execution control,
such as setting breakpoints and performing real-time analysis while
running at the maximum operating frequency.
Pricing and Availability
Samples of TMPR4955BFG-300 are now available at $15.00 per piece in 100-piece quantities.
Technical Specification Summary
Part Number TMPR4955BFG-300
Process 0.13-micron process, 6-layer copper wire
Operating Power Voltage 1.5 Volts (V) internal power, 3.3V external
power
Maximum Operating Frequency 300MHz internal, 133MHz external
On-Chip Cache Memory Instruction Cache: 32K-bytes, 4-way
associative
Data Cache: 32K-bytes, 4-way associative
Memory Management Unit On-chip translation-look-aside buffer,
48-double-entry
Floating Point Unit Single- or double-precision floating point
operation
Debugging Support Unit EJTAG support
Package Plastic QFP160 lead-free package
*About TAEC
Combining quality and flexibility with design engineering expertise, TAEC brings a breadth of advanced, next-generation technologies to its customers. This broad offering includes semiconductors, flash memory-based storage solutions, optical communication devices, displays and rechargeable batteries for the computing, wireless, networking, automotive and digital consumer markets.
TAEC is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba, the second largest semiconductor company worldwide in terms of global sales for the year 2001 according to Gartner/Dataquest's Worldwide Semiconductor Market Share Ranking. Toshiba is a world leader in high-technology products with more than 300 major subsidiaries and affiliates worldwide. For additional company and product information, please visit TAEC's website at chips.toshiba.com . For technical inquiries, please e-mail Tech.Questions@taec.toshiba.com.
All trademarks and registered trademarks are the property of their respective owners.
CONTACT: Deborah Chalmers of Toshiba America Electronic Components,
Inc., +1-408-526-2454, deborah.chalmers@taec.toshiba.com; or Judy Kahn,
+1-650-948-8881, judith.kahn@attbi.com, for Toshiba America Electronic
Components, Inc.; Reader Inquiries: Tech.Questions@taec.toshiba.com
Web site: http://chips.toshiba.com/
Web site: http://www.toshiba.com/taec
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