UR5HCSPI-06 Datasheet | SEMTECH

DESCRIPTION The UR5HCSPI-06 keyboard encoder and power management IC is designed specifically for handheld PCs (H/PCs). The off-theshelf UR5HCSPI-06 will readily work with CPUs designed for Windows CE®, saving OEMs significant development time and money as well as minimizing time-to-market for the new generations of handheld products. Three main design Features of the UR5HCSPI-06 make it the ideal panion for the new generation of Windows CE® -patible, single-chip puters: low-power consumption; real estate-saving size; and special keyboard modes. “Quasi” Zero-Power TM consumption (less than 2µA @ 3V), a must for H/PCs, provides the host system with both power management and I/O flexibility, with almost no battery drainage. Finally, special keyboard modes and built-in power management Features allow the SPICoder TM 06 to operate in harmony with the power management modes of Windows CE®, resulting in more user flexibility and longer battery life. The UR5HCSPI-06 also offers programmable Features for wake-up keys and general purpose I/O pins. PWR_OK NC0 OSCO OSCI Vcc NC NC _RESET _WKU Vx C7 33 34 Features - SPI-patible keyboard encoder and power management IC with other interfaces available - patible with Windows CE® keyboard specification - Zero-Power TM - typically consuming less than 2µA, between 3-5V - Offers overall system power management capabilities - patible with “system-on silicon” CPUs for H/PCs APPLICATIONS - Strong ARMTM Handheld PCs - Windows CE® Platforms - Web Phones PIN ASSIGNMENTS - Personal Digital Assistants (PDAs) - Wearable puters - Internet Appliance - Special keyboard and power management modes for H/PCs, including programmable “wakeup” keys - Scans, debounces, and encodes an 8 x 14 matrix and controls discrete switches and LED indicators - Available in a small 44-pin QFP package - Custom versions available _ATN _SS SCK MOSI MISO WUKO SW0 C8 C9 C10 C11/_LID 23 22 NC C12 C13 GIO0 _IOTEST Vss NC R7 R6 R5 R4 C5 C4 C3 C2 C1 C0 R0 R1 R2 R3...