Z80 CMOS Microprocessors
Z84C90 KIO Serial/
Parallel Counter/Timer
Product Specification
PS011804-0612
Copyright 2012 Zilog, Inc. All rights reserved.
www.zilog.comZ84C90 KIO Serial/Parallel Counter/Timer
Product Specification
ii
Warning: DO NOT USE THIS PRODUCT IN LIFE SUPPORT SYSTEMS.
LIFE SUPPORT POLICY
ZILOGS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE
SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF
THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.
AS USED HEREIN
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b)
support or sustain life and whose failure to perform when properly used in accordance with instructions for
use provided in the labeling can be reasonably expected to result in a significant injury to the user. A
critical component is any component in a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system or to affect its safety or
effectiveness.
DOCUMENT DISCLAIMER
2012 Zilog, Inc All rights reserved. Information in this publication concerning the devices, applications,
or technology described is intended to suggest possible uses and may be superseded. ZILOG, INC. DOES
NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE
INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZILOG ALSO
DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY INFRINGEMENT RELATED
IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED
HEREIN OR OTHERWISE. The information contained within this document has been verified according
to the general principles of electrical and mechanical engineering.
ZMOTION, Z8 Encore! XP and eZ8 are trademarks or registered trademarks of Zilog, Inc. (An IXYS
Company). All other product or service names are the property of their respective owners.
PS011804-0612 Life Support Policy