Continuing with the successive expansion of its wireless device range, Holtek is delighted to announce the release of its new 2.4GHz MCU device range. With a host of MCU features coupled with a 2.4GHz transceiver, these new devices are destined to increase the market competitiveness of 2.4GHz products. The integrated 2.4GHz RF circuit uses DSSS technology and offers high noise immunity, low power consumption, Auto-Ack function and 250Kbps or 1Mbps Data Rate options.
These HT82K75REW/HT82M75REW are high speed bidirectional wireless highly integrated devices, fully equipped with an internal DC-DC Converter, a high speed 6MHz oscillator circuit, integrated 2.4GHz RF circuitry, 128 bytes of EEPROM, 160 to 128 bytes of Data Memory and 15 to 31 I/O pins. As for external components, all that is required is a single 32MHz oscillator. This provides a means for product development with a huge reduction of the usual external components such as an LDO and 6MHz oscillator, in the process reducing PCB area and also resulting in lower costs.
Features
- Operating voltage: fSYS= 6MHz: 1.8V~3.3V
- Internal 6MHz RC oscillator for fSYS
- Power down and wake-up functions to reduce power consumption
- Two bit to define microcontroller system clock (fSYS/1, fSYS/2, fSYS/4)
- All instructions executed in one or two machine cycles
- Table read instructions
- 63 powerful instructions
- 6-level subroutine nesting
- Bit manipulation instruction
- Program Memory: 4K×15
- Data Memory: 128×8~160×8
- Watchdog Timer function
- Up to 40 bidirectional I/O lines with pull-high options
- All I/O pins have falling and rising edge wake-up function
- Single 16-bit internal timer with overflow interrupt and timer input
- SPI interface shared with I/O lines
- Low voltage reset function (LVR) for DC_DC output controlled by configuration option
- Built-in DC/DC to provide stable 2.8V, 3.0V, 3.3V with error ±5% selected by configuration options
- Low voltage detector (LVD) with levels 1.8V/2.0V/2.2V/2.5V/2.8V ±5% for battery input (BAT_IN) selected by application program
- Wide range of available package types
- RF Transceiver with 2.4GHz RF frequency
The HT82D40REW is a bidirectional wireless device with an integrated USB interface which includes a highly accurate internal 12MHz oscillator thus reducing the need for external oscillator components. In being able to provide a 3.3V voltage source with a 70mA current output capability, the need for an external voltage regulator is eliminated. Including the features of an integrated 2.4GHz RF circuit, 128 bytes of EEPROM, 160 bytes of Data Memory and 9 I/O pins, the device only requires a single external 32MHz oscillator for application implementation. The fully integrated oscillator circuit has achieved successful patent application in both the US and Taiwan and has resulted in substantial increase to its market competitiveness.
Features:
- Operating voltage: fSYS=6M/12MHz: 3.3V~5.5V
- 4096×15 program memory
- 160×8 data memory RAM
- 128×8 EEPROM data memory
- USB 2.0 low speed function
- 3 endpoints supported - endpoint 0 included
- PS2 and USB modes supported
- Low voltage reset function
- 9 bidirectional I/O lines (max.)
- 8-bit programmable timer/event counter with overflow interrupt
- 16-bit programmable timer/event counter and overflow interrupts
- Watchdog Timer
- RF Transceiver with 2.4GHz RF frequency
- Integrated 1.5kohm resistor between V33O and D- pins for USB applications
- Fully integrated 6MHz or 12MHz oscillator
- All I/O pins have wake-up functions
- Power-down function and wake-up feature reduce power consumption
- 8-level subroutine nesting
- Up to 0.33us instruction cycle with 12MHz system clock at VDD=5V
- Bit manipulation instruction
- 15-bit table read instruction
- 63 powerful instructions
- All instructions in one or two machine cycles
- 40-pin QFN package
This device is suitable for battery powered 2.4GHz wireless keyboard/mouse, remote controllers, wireless presenters, exercise products, consumer product and so on. The HT82K75REW is available in a 64-LQFP pin package while the HT82M75REW is available in a 40-QFN pin package type. All devices are available as customer samples and in volume orders.
Holtek also offers a complete suite of hardware and software development tools. These include an In-Circuit Emulator, Writers, windows based development tools - the HT-IDE3000 and includes features such as hardware breakpoints with logic setups, trace analyzer etc. Together with the RF Library and sample codes, product developers are assured to have all the tools to hand to for fast debug and efficient product development.
