RN4678-V/RM100 Microchip RF Modules (Other) In Stock
Microchip RN4678-V/RM100 is a certified Bluetooth 4.2 and Bluetooth 5.0 dual-mode module supporting Classic and BLE in a compact 33-pin SMD module. It provides 2.4 GHz RF operation with integrated antenna and host UART interface. Available to order worldwide with a 17-week factory lead time.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- RN4678-V/RM100 Datasheet PDF
- Category
- RF Modules
- Price
- From $9.0900(MOQ 88)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of RN4678-V/RM100?
- Dual-mode Bluetooth 4.2 and Bluetooth 5.0 Classic plus BLE support in a single 33-pin module
- 2.4 GHz integrated radio with on-board antenna for simplified RF PCB design
- UART host interface enables easy connection to any MCU without external Bluetooth stack
- Pre-certified module reduces regulatory approval time and cost for end products
- Compact 33-pin SMD footprint with schematic symbol, PCB footprint, and 3D model available
What is RN4678-V/RM100 used for?
The RN4678-V/RM100 is designed for wireless data transfer applications such as IoT sensor nodes, wearable health monitors, and industrial asset tracking devices that require both Bluetooth Classic SPP and BLE GATT profiles. Its pre-certified status and integrated antenna make it ideal for compact consumer electronics and medical accessories where rapid prototyping and regulatory compliance are critical. The module also suits point-of-sale terminals and handheld scanners needing reliable 2.4 GHz connectivity at distances up to 100 m.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A992.C |
| HTS Code | 8529.90.22.00 |
| Country of Origin | Taiwan, Thailand |
Where can I find the RN4678-V/RM100 datasheet?
RN4678-V/RM100 Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for RN4678-V/RM100?
Compatible alternatives and drop-in replacements for RN4678-V/RM100:
suggested
suggested
suggested
suggested
Bluetooth 4.2 dual mode (BR/EDR/LE) module; ASCII, w/ shield, w/ antenna
Frequently Asked Questions
What Bluetooth versions and modes does the RN4678-V/RM100 support simultaneously?
The RN4678-V/RM100 supports Bluetooth 4.2 and Bluetooth 5.0 in dual-mode operation, meaning it can handle both Classic Bluetooth (BR/EDR) for SPP data streaming and BLE for low-energy GATT profiles at 2.4 GHz within the same 33-pin module, eliminating the need for two separate radios.
How does the 17-week factory lead time affect procurement planning for RN4678-V/RM100?
A 17-week lead time means buyers should place orders approximately 4 months before their production start date. For volume builds, maintaining a safety stock of at least 8 weeks of consumption is advisable. Pre-certification of the module avoids additional FCC/IC re-testing delays, which can otherwise add 6 to 12 weeks to a product's time-to-market.
Which host interface does RN4678-V/RM100 use and what MCU resources does it require?
The RN4678-V/RM100 uses a UART host interface, requiring only 2 signal pins (TX and RX) plus power supply pins from the host MCU, with an operating supply voltage of 3.3 V. This minimal pin count makes it compatible with virtually any 32-bit or 8-bit microcontroller without an external Bluetooth protocol stack.
Can RN4678-V/RM100 replace an RN4020 BLE-only module in a design requiring Classic Bluetooth?
Yes — the RN4678-V/RM100 adds Classic Bluetooth BR/EDR support absent in the RN4020 BLE-only module, while retaining BLE capability. The 33-pin module footprint differs from the RN4020's 28-pin layout, so a PCB update is needed, but the UART ASCII command interface is similar, reducing firmware porting effort to approximately 20 to 40 hours.
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| Qty. | Unit Price | Ext. Price |
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| 88+ | $10.4000 | $915.20 |
| 100+ | $10.2900 | $1029.00 |
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| 1000+ | $9.6800 | $9680.00 |
| 5000+ | $9.0900 | $45450.00 |
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