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                      | HITACHI HOME | UP | SEARCH | HITACHI

                      News Release

                      October 19, 1998

                      Hitachi Releases the SH7750V Low-Power SH-4 RISC Microprocessor, and HD64463, HD64464, and HD64465 Peripheral LSIs for Handheld PCs

                      - Next-version Windows(R) CE compatible handheld PC system solution provided by a chip-set combining an MPU offering high performance of 230 MIPS/896 MFLOPS plus low power consumption of 400 mW with an LSI incorporating high-level peripheral functions on a single chip -

                      Hitachi, Ltd. (NYSE:HIT) today announced the release of the SH7750V, a low-power-
                      consumption model in the SH-4 (SH7750) series of RISC microprocessors for portable 
                      information devices and multimedia products, featuring a high performance of 230 
                      MIPS/896 MFLOPS*1 together with a low power consumption of 400 mW.  Sample 
                      shipments of both types will begin in December 1998 in Japan.
                      
                      In addition, Hitachi has developed three single-chip peripheral LSIs as SH-4 chip-sets for 
                      use in handheld PCs (H/PCs) running the next version of Windows(R) CE*2: the HD64463 
                      with peripheral functions including a color liquid crystal controller and IrDA*3 controller; 
                      the HD64464 (MQ-100) with a color liquid crystal controller, and graphics accelerator, 
                      together with display memory; and the HD64465 with peripheral functions including a 
                      USB*4 host controller and an IrDA controller.  These chip-sets can be used to configure 
                      most next-generation H/PC systems supporting the next version of Windows(R) CE, enabling 
                      high-performance systems to be implemented in a compact form within a short timeframe.
                      
                      Microsoft's Windows(R) CE operating system, designed for portable information devices and 
                      multimedia products, is attracting great attention in enabling the use of Windows(R) 95 not 
                      only in PCs but also in portable information terminals and embedded products, thereby 
                      offering a drastic improvement in user-friendliness.
                      
                      An H/PC with Windows(R) CE offers the same performance as a PC in a more compact 
                      package, together with the ability to exchange data with a notebook or desktop PC via 
                      infrared communication or an RS-232C interface, and a long operating period on battery 
                      power.
                      
                      With its support for Windows(R) CE, good balance between high performance and low power 
                      consumption, and high code efficiency provided by the use of 16-bit fixed-length 
                      instructions, Hitachi's SH-3 RISC processor is used in many H/PCs.  To provide 
                      compatibility with the next version of Windows(R) CE, respond to the demand for even 
                      higher performance, lower power consumption, and the higher integration required to 
                      achieve more compact, lighter, and lower-powered portable products, there is a need for 
                      support that takes account not only of the CPU, but of the entire system, including 
                      peripheral functions.
                      
                      The next generation of H/PCs with Windows(R) CE will feature USB controllers in addition 
                      to the functions of the current generation, together with larger screens.  Used in combination 
                      with the SH-4, the HD64463, HD64464, and HD64465 offer an ideal solution for the next 
                      generation of H/PCs with Windows(R) CE, the leading worldwide market in the field.
                      
                      The SH-4 series achieves high performance through the use of a superscalar*5 system which 
                      allows simultaneous execution of multiple instructions, supports 32-bit floating-point 
                      operations*6, and features greatly improved digital signal processing capability, including 
                      image processing.  These features make it the ideal choice for the wide range of full-fledged 
                      multimedia products that can be expected to appear on the market.
                      
                      The newly developed SH7750V inherits the architecture of Hitachi's SuperH?*7 RISC 
                      microprocessor, which is used in many H/PCs thanks to its high code efficiency resulting 
                      from the use of 16-bit fixed-length instructions, and the good balance it offers between high 
                      performance and low power consumption.  The SH7750V is a Windows(R) CE support CPU, 
                      supporting a variety of peripheral devices and providing higher performance and lower 
                      power consumption.
                      
                      The SH7750V features a 128 MHz operating frequency at 1.5 V, with a 230 MIPS/896 
                      MFLOPS performance and 400 mW power consumption, enabling image processing, voice 
                      recognition, voice synthesis, communication, and other functions to be implemented by 
                      software in portable products.
                      
                      On-chip peripheral functions include, as before, a 16-kbyte data cache and 8-kbyte 
                      instruction cache, a memory management unit (MMU)-an essential feature when an OS 
                      supporting memory protection and virtual memory is installed-a 32-bit multiplier, 4-
                      channel direct memory access controller (DMAC), 32-bit timer, realtime clock, serial 
                      communication interface (SCI), SCI with FIFO, and direct interfaces for various kinds of 
                      memory, including PCMCIA cards and synchronous DRAM.
                      
                      Also, to enable a more compact H/PC to be produced in a short timeframe, peripheral LSIs 
                      have been developed for use in chip-sets with the SH-4 series.  The HD64463 and HD64465 
                      feature USB, a keyboard controller interface, and printer interface functions in addition to 
                      the functions of Hitachi's previous HD64461.  The HD64464 supports simultaneous dual-
                      screen display for an LCD and CRT, and includes on-chip display memory.  
                      
                      The HD64464 also has a function for displaying different images simultaneously on two 
                      displays-an LCD and a CRT-that eliminates the need for an external display controller.  
                      The HD64463 and HD64465 incorporate in a single chip peripheral functions previously 
                      provided by means of an ASIC connected externally to the MPU.  The HD64464 is 
                      manufactured and sold by Hitachi under license of MQ-100 from MediaQ, Inc. of the USA.  
                      These chip-sets can be used to configure most next-generation H/PC systems supporting the 
                      next version of Windows(R) CE, enabling high-performance systems to be implemented in a 
                      compact form within a short timeframe.
                      
                      Future plans for the SH-4 series include extension of the lineup with the development of 
                      products designed for the next generation of portable products.  In addition, a 1000 MIPS 
                      model-the SH-5-is planned for the SuperH family.
                      
                      Notes:	1. FLOPS: Floating-point operations per second.  An indicator of performance 
                                      relating to scientific and technical calculations.  A performance of 896 MFLOPS 
                                      means the ability to execute 896 million floating-point operations in one second.
                      	2. Windows: Windows is a registered trademark of Microsoft Corporation in the 
                                     USA and/or other countries.
                      	3. IrDA (Infrared Data Association): A private standards association established with 
                                      the aim of improving interconnectability in infrared data communications for 
                                      cordless information exchange.
                      	4. USB (Universal Serial Bus): A personal computer interface standard jointly 
                                      developed by seven companies including Intel and Microsoft of the USA.
                      	5. Superscalar system: A method of operating a processor at high speed by executing 
                                      multiple instructions simultaneously in a single clock cycle.
                      	6. Floating-point functions: A notation that enables numeric values covering a wide 
                                      dynamic range to be expressed with a high degree of precision.  Recently, 
                                      floating-point functions have become necessary in such areas as coordinate 
                                      calculation in graphics processing and equipment control requiring high precision.
                      	7. SuperH: SuperH is a trademark of Hitachi, Ltd.
                      
                      < About MediaQ >
                      MediaQ, Inc. was founded in California in 1997.  It is a fabless company mainly engaged in 
                      ASIC design and device driver development, featuring high added value and innovative 
                      technologies.
                      
                      < About Hitachi >
                      Hitachi, Ltd., headquartered in Tokyo, Japan, is one of the world's leading global electronics 
                      companies, with fiscal 1997 (ended March 31, 1998) consolidated sales of ¥8,417 billion 
                      ($63.8 billion*).  The company manufactures and markets a wide range of products, 
                      including computers, semiconductors, consumer products and power and industrial 
                      equipment. For more information on Hitachi, Ltd., please visit Hitachi's Web site at 
                      http://www.hitachi.co.jp.
                      * At an exchange rate of 132 yen to the dollar.
                      
                      
                      < Applications >
                      Information and OA fields: H/PCs, products supporting Windows(R) CE
                      Consumer field: Multimedia products, games and other amusement products
                      
                      < Prices in Japan >
                      
                      Product Code Price for 10,000 Lot (Yen)
                      HD6417750VF128 (SH7750) 3,000

                      Product CodeSample Price (Yen)
                      HD64463BP5,000
                      HD64464F5,200
                      HD64465BP5,000

                      < Specifications >
                      1. Main Specifications of SH7750V
                      
                      ItemSpecification
                      Power supply voltage1.5 V (internal) / 3.3 V (I/O)
                      Operating frequency128MHz
                      Processing speed230MIPS, 896MFLOPS
                      Power consumption400mW (typ.)
                      Cache configurationSeparate 8 kB instruction cache/16 kB data cache,direct mapping,write-through/copy-back selectable, LRU method
                      CPU instructionsSame as SH-4 (SH7750 series)
                      On-chip supporting functionsMMU,32-bit multiplier, two serial channels (one with FIFO), 3 timer channels, realtime clock, 4-channel DMAC, memory interfaces (DRAM/SRAM/synchronous DRAM/burst ROM/PCMCIA), etc.
                      Bus width32-bit/64-bit selectable
                      Package208-pin HQFP (0.5 mm pitch, 28 mm×28 mm)
                      Process0.20-um 5-layer aluminum CMOS process

                      2. Main Specifications of HD64463
                      
                      ItemSpecification
                      CPU interfaceSH-3, SH-4 SRAM interface
                      AFE interfaceSupports ST Microelectronics Inc. STLC7546/7550
                      PCMCIA controllerSupports PCMCIA 2.1/JEIDA Spec. Ver.4.2/two slots with buffer/3.3 V, 5 V
                      IrDAIrDA 1.1 compatible (FIR and MIR supported)
                      UART2 channels, 16550 compatible
                      LCDSingle-scan STN, max. 640 x 480 dots, 256 gradations
                      CRTVGA (VESA)
                      USBFunction support, 4 end points
                      Printer interfaceIEEE1284 (SPP, EPP, ECP modes supported)
                      A/D4-channel 10-bit A/D
                      Analog interfaceCodec support: AC97
                      Keyboard controller interfaceH8 interface (H8/3334 or H8/3202)
                      Package387-pin BGA

                      3. Main Specifications of HD64464
                      
                      ItemSpecification
                      Colors64,000 colors, 256 colors out of 260,000, gray scale
                      LCDVGA, SVGA, XGA size dual/single-scan STN, TFT supported
                      CRTVGA, SVGA, XGA size
                      Display modeSimultaneous LCD/CRT display, PowerPoint ghost mode
                      Accelerator functionsLineDraw, Bitblts, Hardware Cursor, etc.
                      Display memory8-Mbit on-chip memory
                      Package176-pin LQFP

                      4. Main Specifications of HD64465
                      
                      ItemSpecification
                      CPU interfaceSH-3, SH-4 SRAM interface
                      AFE interfaceSupports ST Microelectronics Inc. STLC7546/7550
                      PCMCIA controllerSupports PCMCIA 2.1/JEIDA Spec. Ver. 4.2/two slots with buffer/3.3 V, 5 V
                      IrDAIrDA 1.1 compatible (FIR and MIR supported)
                      UART1 channel, 16550 compatible
                      USBHost function, 12 Mbps supported
                      Printer interfaceIEEE1284 (SPP, EPP, ECP modes supported)
                      A/D4-channel 10-bit A/D
                      Analog interfaceCodec support: AC97
                      Keyboard controller interfaceH8 interface (H8/3334 or H8/3202)
                      Package387-pin BGA

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                      WRITTEN BY Secretary's Office
                      All Rights Reserved, Copyright (C) 1998, Hitachi, Ltd.

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