The MC86HC908QF4 is a member of Freescale Semiconductor's high-performance M68HC08 family of 8-bit microcontroller units (MCU), optimised for low-power operation with an on-chip UHF RF transmitter.
This device is particularly suited for remote keyless entry, tyre pressure monitoring, or other remote sensing and wireless RF data transmission.
With the 908QF4 device, a frequency band switch is possible between 315 MHz, 434 MHz and 868 MHz. This frequency flexibility ensures that the end application can be designed to meet regulations of most countries. Either frequency shift keying (FSK) modulation or on-off keying (OOK) is possible.
The QF family comprises four devices: MC68HC908QF4/3 with 4096 bytes of Flash, and MC68HC908QF2/1 with 1536 bytes of Flash. The 'QF4 and 'QF3 include an 8-bit 4-channel ADC. The devices come in a small 32 pin low-profile quad flat pack (LQFP) measuring 9 mm square.
The devices have a 2,2 to 3,6 V operating range and a power saving 'stop' and 'wait' modes. The maximum internal bus frequency is 2 MHz. Some other features: 128 bytes of on-chip RAM; 16 bits, 2 channel timer interface module; 13 lines of GPIO; 6 bit keyboard interrupt; Watchdog; and trimmable internal oscillator. RF power output with 50 Ω matching network in the 315 and 434 MHz bands is typically 5 dBm, and in the 868 MHz band is 1 dBm.
Mobile satellite connectivity available in SA
Telecoms, Datacoms, Wireless, IoT
Space42 has commercially launched its next generation mobile satellite service, Thuraya 4 NGS, available in South Africa as of February 2026.
Read more...Next-gen Wi Fi 6E connectivity for embedded systems iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Espressif Systems has expanded its connectivity portfolio with the introduction of the ESP32-E22, the company’s first Wi-Fi 6E connectivity co-processor.
Read more...Quectel redefines connectivity with RG660Qx 5G Series iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Purpose-built to meet the demands of next-generation IoT and wireless broadband, these modules leverage the cutting-edge Qualcomm X85 and X82 5G Modem-RF systems to deliver enterprise-grade performance.
Read more...Contactless IO-Link couplers IOT Electronics
Telecoms, Datacoms, Wireless, IoT
The IO-Link couplers from Phoenix Contact are industrial contactless couplers designed to transmit power and IO-Link data across a small air gap without physical connectors.
Read more...Quectel’s RG255C-NA and RM255C-GL accelerate 5G RedCap adoption iCorp Technologies
Editor's Choice Telecoms, Datacoms, Wireless, IoT
Quectel’s RG255C-NA and RM255C-GL modules represent a strategic move into this fast-growing segment, delivering Sub-6 GHz 5G connectivity optimised for mid-tier IoT applications.
Read more...SDRs – Which RF architecture should you choose? RFiber Solutions
Editor's Choice Telecoms, Datacoms, Wireless, IoT
There are several common methods of implementing SDR architectures. This paper discusses which is best when meeting a specific need.
Read more...Multi-band GNSS patch antenna RF Design
Telecoms, Datacoms, Wireless, IoT
The Taoglas AHP2356A is a compact, high-performance active GNSS patch antenna designed for next-generation positioning systems requiring precision, reliability, and multi-constellation support.
Read more...Cellular routers for explosive areas Phoenix Contact
Telecoms, Datacoms, Wireless, IoT
Updated versions of the Cellulink outdoor cellular router product range from Phoenix Contact are now available; they have been specially developed for use in Zone 2 potentially explosive areas.
Read more...Power the next wave of IoT innovation Links Field Networks
Telecoms, Datacoms, Wireless, IoT
Links Field Networks’ portfolio includes connectivity platforms, edge devices, and network management tools designed to support secure, resilient IoT deployments across a range of use cases.
Read more...Move to smart agriculture Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
Designed for precision agriculture, the RAKwireless SensorHub is a modular, industrial-grade IoT platform that collects real-time environmental and soil data across farming operations.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version