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UR8HC007-0A4-FQ

Semtech Corporation
Part Number UR8HC007-0A4-FQ
Manufacturer Semtech Corporation
Description Zero-Power Input Device and Power Management IC
Published Apr 16, 2005
Detailed Description JunoTM A4 UR8HC007-0A4 Zero-PowerTM Input Device and Power Management IC HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMIL...
Datasheet PDF File UR8HC007-0A4-FQ PDF File

UR8HC007-0A4-FQ
UR8HC007-0A4-FQ

Overview
JunoTM A4 UR8HC007-0A4 Zero-PowerTM Input Device and Power Management IC HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY DESCRIPTION The JunoTM A4 is a member of a series of input device and power management companion ICs for RISC-based portable systems.
On a single IC, the JunoTM 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 JunoTM 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-PowerTM PS/2 port for the hot-plug connection of an external PS/2 keyboard or mouse.
The Zero-PowerTM JunoTM 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 JunoTM 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 component 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-PowerTM 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 signals, ...


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