DESCRIPTION

JunoTM 01 is a member of a series of multi-functional companion ICs for Jupiter and other devices running Microsoft? Windows? CE and utilizing RISC-based processors. The IC interfaces the system via either asynchronous serial or the Serial Peripheral Interface (SPI) and provides keyboard scanning, special general purpose I/O (GPIO) and unique system power management capabilities.

FEATURES

? Typically consumes less than 1 μA

? Scans a fully programmable 8 X 16 matrix that supports Japanese, English and European keyboards

? Operates continuously between 3 and 5 Volts

? Offers unique power management capabilities that work in harmony with Windows? CE’s power modes

? Always runs in “Stop” mode without data or event loss

? Provides three Zero-PowerTM PS/2 ports for the hot-plug connection of external keyboards/mice & internal mouse, including MouseWheels

? Uses proprietary circuitry, so “Stop” mode is entered even when PS/2 devices are connected and active

? Available in 1.7mm high package to accommodate slim designs

? GPIO pins provide interrupt at both falling and rising edge of signals, ideal for lid functions, power, ring indicators, docking signals, battery measurement, etc.

? Has additional GPIO available for LEDs, switches, etc.

? Offers internal control of LCD brightness/contrast, audio, etc. as well as four 10-bit A/D channels for power management monitoring

? Cost-effective, reducing overall system costs by integrating features that would typically require multiple additional components

? Provides programmable features that allow for maximum design differentiation without customization

? Other JunoTM versions offer control of internal pointing device