With a focus on the 2.4 GHz RF application area, Holtek is delighted to announce its new I/O Type Full Speed USB Flash MCU, the BC68FB540. This device forms one of a series of new generation 8-bit Flash USB RF MCUs. The 2.4 GHz RF Transceiver includes the features of low power consumption, high performance and high noise immunity characteristics and has a data rate of up to 2 MBPS.
The BC68FB540 is compatible with the USB 2.0 specification and has an operating voltage of 2.2 V to 5.5 V, and with an operating temperature of –40 °C to +85 °C it meets with industrial specifications. The RF circuitry derives its system clock from an externally connected 16 MHz crystal while the MCU system clock is derived from a fully internal 12 MHz HIRC oscillator. The device range has a Program Memory capacity of 4K×16 and 256 bytes of Data Memory RAM. It includes a Full Speed USB interface with up to 4 USB endpoints as well as 9 bidirectional I/Os, 4 Timer Modules with PWM outputs, an SPI interface, a Watchdog Timer and a Low Voltage Detect function. In addition, it also contains an internal regulator with an output of 3.3 V which can be used by the RF circuitry and other peripheral functions. The device is supplied in a 46-pin QFN package type. This extremely small package outline makes it especially suitable for 2.4 GHz small outline wireless product applications.
Holtek has also provided the device with a new ISP online firmware update function. The firmware can be easily updated via the USB interface using the I3000 Writer (Windows®-based). Holtek also provides a DLL for user development. The device also supports ICP, ISP and IAP modes and an online update function which can withstand up to a million times rewrite cycles. The device is suitable for applications such as Wireless Mouse, Wireless Keyboards, Presentation Remotes and other wireless computer peripheral and household appliance applications.
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| In-Circuit Emulator. |
Holtek also supplies a full suite of excellent hardware and software development tools. Known as the HT-IDE3000 (Windows®-based), it includes a hardware In-Circuit Emulator with full trace analysis features as well as many other functions and is used together with the OCDS debug interface. Holtek also offers a range of application guides to ensure developers have their designs up and running in the shortest time possible.
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| The HT-IDE3000 Window (Debug Menu). |
