HD64F3437TF16 Datasheet, PDF (752/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

H8/3437 Series Hardware Manual
Publication Date: 1st Edition, September 1994
7th Edition, March 2002
Published by: Business Planning Division
Semiconductor & Integrated Circuits
Hitachi, Ltd.
Edited by:
Technical Documentation Group
Hitachi Kodaira Semiconductor
Copyright © Hitachi, Ltd., 1994. All rights reserved. Printed in Japan.