Functional Description
PRoC LPstar devices are integrated radio and microcontroller functions in the same package to provide a dual role single-chip solution.
Communication between the microcontroller and the radio is via the SPI interface between both functions.

Features
■ Radio System-on-Chip, with built-in 8-bit MCU in a single device.
■ Operates in the unlicensed worldwide Industrial, Scientific, and Medical (ISM) band (2.400 GHz to 2.483 GHz).
■ On Air compatible with second generation radio WirelessUSB™ LP and PRoC LP.
■ Pin-to-pin compatible with PRoC LP except the pin 31 and pin 37.

Intelligent
■ M8C based 8-bit CPU, optimized for human interface devices (HID) applications
■ 256 bytes of SRAM
■ 8 Kbytes of flash memory with EEPROM emulation
■ In-System reprogrammable through D+/D– pins
■ CPU speed up to 12 MHz
■ 16-bit free running timer
■ Low power wakeup timer
■ 12-bit programmable interval timer with interrupts
■ Watchdog timer

Low Power
■ 21 mA operating current (Transmit at –5 dBm)
■ Sleep current less than 1 µA
■ Operating voltage from 4.0 V to 5.25 V DC
■ Fast startup and fast channel changes
■ Supports coin-cell operated applications

Reliable and Robust
■ Receive sensitivity typical –90 dBm
■ AutoRate™ – dynamic data rate reception
    ❐ Enables data reception for any of the supported bit rates automatically.
    ❐ DSSS (250 Kbps), GFSK (1 Mbps)
■ Operating temperature from 0 °C to 70 °C
■ Closed-loop frequency synthesis for minimal frequency drift
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