ZiLOG Releases Networking Protocol Stack and Operating System Software.

SAN JOSE, Calif. -- ZiLOG(R), Inc. (Nasdaq:ZILG), the creator of the Z80(R) microprocessor and a leading innovator of integrated 8-bit microcontrollers and universal remote control solutions, today launched a new version of ZTP, its integrated, preemptive multitasking OS and TCP/IP protocol software suite. ZTP represents a complete embedded networking solution offering standard network connectivity across a wide range of applications, such as industrial control, automation, facility management, IP appliances and remote systems communication.

As with earlier releases of ZTP, the latest Version 1.4 is optimized for embedded systems and works in conjunction with ZiLOG's award-winning eZ80Acclaim! family of Flash devices, which includes the eZ80F91, eZ80F92 and eZ80F93 microcontrollers and the eZ80190 and eZ80L92 microprocessors. This software product is powered by ZiLOG's RZK real-time kernel and offers full-feature operating systems services in addition to network services and takes up little program memory.

ZTP 1.4 provides either the industry standard socket interface or a native RZK Application Programming Interfaces (API) for user applications to access TCP/IP services, all under user control. Such easy-to-use APIs will accelerate development time for network programmers already familiar with the socket interface. Alternatively, new TCP/IP programmers can leverage the native RZK APIs to shorten the learning process and design cycle. In addition, an internal mapping layer maintains a set of backwards-compatible APIs to previous versions of ZTP.

"ZTP has been designed to be scalable, modular, configurable and easy to use. It is a tried and tested software product proven to reduce customer time-to-market and product development cost," commented Ramesh Ramchandani, senior vice president of marketing at ZiLOG. "It offers a rich set of features which have been highly optimized to the stringent memory and performance requirements of typical 8-bit embedded applications. We believe that the new version of ZTP will increase overall eZ80Acclaim MCU product adoption, and ultimately drive revenue and market share."

Features

ZTP offers the following features:

--Full TCP/IP operation over Ethernet or PPP 

--Core protocols: TCP, UDP, IP, ICMP, IGMP, ARP, RARP, DHCP/BOOTP

--Additional protocols: HTTP v1.1, TFTP, TELNET, SMTP, SNMP, TIMEP, DNS 

--RFC compliant

--Configuration options to customize stack for application needs

--Ethernet and serial device drivers

--Supports multiple network connections

--Multi-session HTTP server that works with standard browsers

--Embedded CGI interface supporting dynamic HTML operations

--Pre-emptive, multitasking, operating system

In addition, ZiLOG has added the following features to Version 1.4:

--Flash file system supporting multiple disk volumes and works on available Flash and RAM

--FTP server and client protocols

--Berkley socket APIs in addition to native RZK socket APIs

--Xinu translation layer/APIs for backward compatibility

--SPI, I2C, and RTC drivers

--Network security SSL plug-in options (available separately)

Pricing and Availability

Available immediately, ZTP V1.4 object-code package (part # eZ800000100STO) can be downloaded free of charge by all registered customers of eZ80Acclaim! MCU products. ZTP V1.4 source code package (part # eZ800000100STS) is available for purchase at $1995. Existing ZTP source customers will receive significant upgrade discounts. For further details, please visit

http://www.zilog.com/products/partdetails.asp?id=EZ800000100STO

http://www.zilog.com/products/partdetails.asp?id=EZ800000100STS

About ZiLOG, Inc.

ZiLOG, Inc. (Nasdaq:ZILG) Founded in 1974, ZiLOG won international acclaim for designing one of the first architectures in the microprocessors and microcontrollers industry. Today, ZiLOG is a leading global supplier of 8-bit micro logic devices. It designs, manufactures and markets a broad portfolio of devices for embedded control and communication applications used in consumer electronics, home appliances, security systems, point of sales terminals, personal computer peripherals, as well as industrial and automotive applications. ZiLOG is headquartered in San Jose, California, and employs approximately 550 people worldwide with sales offices throughout Asia, Europe and North America. For more information about ZiLOG and our products, visit the Company's website at: www.ZiLOG.com.

ZiLOG and eZ80Acclaim! and are trademarks or registered trademarks of ZiLOG, Inc. in the United States and in other countries. Other product and or service names mentioned herein may be trademarks of the companies with which they are associated.

This release contains forward-looking statements (including the statements about ZTP's ability to drive revenue and market share) relating to expectations, plans or prospects for ZiLOG, Inc. that are based upon the current expectations and beliefs of ZiLOG's management and are subject to certain risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. For example, end customer demand and the introduction and acceptance of competing products could adversely affect ZTP's market share. ZiLOG does not expect to, and disclaims any obligation to, update such statements. ZiLOG, however, reserves the right to update such statements or any portion thereof at any time for any reason.

For a detailed discussion of the cautionary statements which could impact our expectations, please refer to the risk factors discussed in filings with the U.S. Securities and Exchange Commission ("SEC"), including but not limited to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2003, and any subsequently filed reports. All documents also are available through the SEC's Electronic Data Gathering Analysis and Retrieval system (EDGAR) at http://www.sec.gov or from the Company's website at www.ZiLOG.com