ZiLOG Ships Extended Temperature Version of Recently Introduced Z8 Encore! Flash Microcontrollers.

Business Editors/High-Tech Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--May 20, 2003

Broad Temperature Range, Flash Memory and High-Performance

Architecture Makes the Z8 Encore! the Ideal Choice

for Vertical Market Applications

ZiLOG, Inc. (OTCBB:ZILG), one of the leading suppliers of 8-bit microcontrollers, announced today that it is shipping extended temperature versions of its Z8 Encore!(TM) family of Flash microcontrollers. The devices, which feature between 16 and 64Kbytes of Flash and 2 or 4Kbytes of linear register SRAM, are rated to operate between -40 and +105 degrees Celsius.

The devices are ideal for any vertical application that operates within a wide temperature range and demands high performance and outstanding reliability. Potential applications include: building access controls; residential and commercial remote entry systems; security systems; industrial irrigation and consumer sprinkler controls; keyless entry systems for automobiles; and navigational equipment for autos and boats.

"ZiLOG will continue to break new ground as it has with the introduction of the eZ80Acclaim!(TM) and Z8 Encore! product families in the past seven months. These new devices are significant because they extend the reach of the Z8 Encore! family into new application areas in the commercial, industrial and automotive sectors," said Michael Gershowitz, Director, MicroDevices Product Marketing at ZiLOG. "We estimate that over thirty percent of our customers require extended temperature capabilities and the initial reaction from our customers about these new devices has been very enthusiastic. Clearly, there is strong demand for a device that combines the Flash memory and outstanding peripherals of the Z8 Encore! microcontrollers with a comprehensive temperature rating."

The Z8 Encore! family of 8-bit microcontrollers enables embedded system designers to quickly develop new, highly differentiated designs, while reducing total system cost and enhancing performance. Meanwhile, the eZ80Acclaim! family of 8-bit microcontrollers, which was introduced in February, is aimed at higher-performance applications previously the domain of 16-bit devices and features an optimized, power-efficient architecture.

The new devices are completely identical to the recently announced Z8 Encore! devices, while being rated for extended temperature range. Like the rest of the family, the new devices feature ZiLOG's high-performance register-to-register based architecture and a fast eZ8 CPU 20MHz core, which maintains backward compatibility with the company's very popular Z8(R) microcontrollers.

All devices in the Z8 Encore! family use the same core architecture and peripheral interfaces to ensure seamless migration across different devices as application requirement change on subsequent projects. Current Z8 Encore! customers can quickly and easily migrate their existing code without expensive code modification or investment in new development tools.

The extensive suite of on-chip peripherals include: a DMA controller; 12 channel, 10-bit A/D; SPI; I2C; two 9-bit UART ports with integrated Infrared Data Association (IrDA)-compliant encoder/decoders; four 16-bit counter timers, each with capture and PWM capability; and a single-pin, on-chip debugger.

The ZiLOG Z8 Encore! Development Kit includes an ANSI-C Compiler and C source-level debugger, the Windows version of ZiLOG Developer Studio (ZDSII), a full-featured evaluation board, a sample Flash device, an RS-232 to ZDB cable, a 9VDC universal power supply, and a target module interface board. The development kit also includes ZiLOG Xtools(TM), an intuitive, production-quality suite of tools designed to reduce total system development time. For a limited time, the company is offering its Z8 Encore! Development Kit for only $49.95 (Book Price: $199.00).

Z8 Encore! devices are available in space saving Low-Profile Quad Flat Pack (LQFP) and Plastic Leaded Chip Carrier (PLCC) packages and are available in production quantities immediately. The extended temperature devices will be competitively priced. For example, the Z8F1601AN020EC, which features 16KB of Flash memory in a 44-pin LQFP, will initially sell for $3.64 each in 1,000s.

About ZiLOG, Inc.

ZiLOG, Inc. (OTCBB:ZILG) is a leading designer, manufacturer and marketer of semiconductors for worldwide-embedded control markets, including consumer, electronic and industrial control solutions. Headquartered in San Jose, Calif., ZiLOG employs approximately 700 people worldwide. ZiLOG maintains design centers in San Jose, Calif.; Ft. Worth, Texas; Nampa, Idaho; Seattle, Wash.; and Bangalore, India; manufacturing in Nampa; and test operations in Manila, Philippines. For more information, visit the company's Web site at: http://www.ZiLOG.com.

ZiLOG and Z8 are registered trademarks of ZiLOG, Inc. in the United States and in other countries. Z8 Encore!, eZ80Acclaim! and Xtools are 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.