Zilog introduced a new member of its eZ80Acclaim! family of 8-bit MCUs, an enhanced MCU designed for use in Internet/Intranet-based networking and communications applications. Available in LQFP and BGA packages, the offering is designated the eZ80F91AZA50 (LQFP) or eZ80F91NAA50 (BGA) depending on packaging type. This member of the eZ80Acclaim! family, features increased registers for better I/O performance, a modified power controller for lower power consumption and updated Flash memory functionality. The controller provides a combination of features to enable collection of data from - and control of - a networked group of instruments or systems via a single PC. Along with the other members of the eZ80Acclaim! family, it features on-chip integrated memories (up to 256KB Flash and 16KB SRAM), core speeds up to 50MHz, and an on-chip Ethernet MAC. The eZ80F91AZA50 and eZ80F91NAA50 devices have identical footprints to the previous eZ80F91 generation.

The devices were designed to be backward-compatible, although some minor code modification may be required, dependant on which features are used. Development kits and modules are available to facilitate designs developed using these new offerings. Zilog’s latest 8-bit MCU is currently available.