UR8HC007-0A4-FQ Datasheet | SEMTECH

Juno TM A4 UR8HC007-0A4 Zero-Power TM Input Device and Power Management IC HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY DESCRIPTION The Juno TM A4 is a member of a series of input device and power management panion ICs for RISC-based portable systems. On a single IC, the Juno TM A4 integrates control of any 4-wire or 8-wire resistive touch screen, keyboard scanning, unique power management capabilities, a direct PS/2 port and plenty of General Purpose Input / Output (GPIO). The Juno TM A4 provides continuous operation between 3V and 5V and scans a fully programmable 8 X 16 keyboard matrix. The IC is equipped with a direct Zero-Power TM PS/2 port for the hot-plug connection of an external PS/2 keyboard or mouse. The Zero-Power TM Juno TM A4 will power down even between key presses. Proprietary circuitry (patent pending) allows the IC to power down even when the PS/2 device is connected and active. Typical power consumption is less than 1 µA, a first for embedded ICs. The Juno TM A4 is equipped with a proprietary protocol developed specifically for RISC-based handheld machines. It interfaces the system via either asynchronous serial (UART) or the Serial Peripheral Interface (SPI). The integration of Features , many of them programmable, on one IC increases flexibility and reduces ponent count and cost. Features - Typically consumes less than 1µA - Scans an 8 x 16 keyboard matrix that supports Japanese, English and European keyboards - Interfaces any four-wire or eightwire resistive touch screen - Operates continuously between 3 Volts and 5 Volts - Offers unique power management capabilities that work in harmony with Windows® CE power modes - Always runs in "Stop" mode without data or event loss - Provides a direct Zero-Power TM PS/2 port for the hot-plug connection of an external keyboard or mouse - Uses proprietary circuitry, so “Stop” mode is entered even when PS/2 device is connected & active - GPIO pins provide interrupt at both falling and rising edge of...