Portable applications, also known as mobile devices, include many types of consumer handheld devices such as mobile handsets, smartphones, mobile Internet devices, portable media players, electronics toys/games, portable navigators, and digital camera/camcorders. Despite the economic downturn at the end of 2008, industry analysts predict demand for mobile devices and consumer electronics will continue to rise. The largest growth areas for mobile devices will be in mobile Internet devices, smartphones, and portable navigation.
Prepared to address this market trend, Altera introduced the MAX® IIZ CPLD, targeting low-power, low-cost handheld devices. Different from other markets, portable applications require a silicon solution with low power (for battery life-extension), low cost (typically $2 or less), and small packages (such as 5 x 5 mm or less). Designed with the market requirements of portable devices in mind, Altera's MAX IIZ devices consume almost zero power in standby mode, cost $2 or less in high-volume, and have a very small package size (package options for the smallest device can be less than 5 x 5 mm), making it one of the most attractive CPLD solutions in the market.
Because of its low power, low cost, and small package features, you can use a MAX IIZ device as a companion device to an ASSP or ASIC to help manage system processor power consumption or system boot-up sequencing. Other typical uses include I/O expansion, voltage level shifting, capacitive touch sensors, touch-screen encoders, key board decoders, color LED drivers, interrupt handling, or data processing. A unique feature only offered by MAX IIZ devices allows users to write security code into its internal user flash memory (up to 8 Kbytes). Figure 1 illustrates typical uses for MAX IIZ CPLDs in portable applications.