To all our customers Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. The semiconductor operations of Mitsubishi Electric and Hitachi were transferred to Renesas Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.) Accordingly, although Hitachi, Hitachi, Ltd., Hitachi Semiconductors, and other Hitachi brand names are mentioned in the document, these names have in fact all been changed to Renesas Technology Corp. Thank you for your understanding. Except for our corporate trademark, logo and corporate statement, no changes whatsoever have been made to the contents of the document, and these changes do not constitute any alteration to the contents of the document itself. Renesas Technology Home Page: www.renesas.com Renesas Technology Corp. Customer Support Dept. April 1, 2003 Renesas Technology Corp. Hitachi SingleChip Microcomputer H8/3397 Series H8/3397 HD6433397 H8/3396 HD6433396 H8/3394 HD6433394 H8/3337 Series H8/3337Y HD6473337Y, HD6433337Y H8/3336Y HD6433336Y H8/3334Y HD6473334Y, HD6433334Y H8/3337W HD6433337W H8/3336W HD6433336W H8/3337YF-ZTAT HD64F3337Y H8/3337SF-ZTAT HD64F3337S H8/3334YF-ZTAT HD64F3334Y Hardware Manual ADE-602-078E Rev. 6.0 3/14/02 Hitachi, Ltd.