---
title: BCM43109
url: https://www.broadcom.com/products/wireless/wireless-lan-bluetooth/bcm43109
description: Learn about Broadcom’s combo chip, ideally suited for mobile handsets requiring low-power, low-latency in a compact size.
---

# BCM43109

## Highly-integrated dual-core Wi-Fi 8 and Bluetooth combo chip supporting simultaneous 2.4/5/6 GHz operations

The BCM43109 is a low-power, highly integrated Wi-Fi 8 and Bluetooth combo chip optimized for mobile handset applications where high performance, low latency, low power consumption and small solution size are key requirements. The BCM43109 system-on-a-chip is fabricated in a 5 nm FinFET process and contains a simultaneous dual-band (SDB) 2×2 IEEE 802.11bn-compliant radio, a dual-core SDB Bluetooth (BT) radio, an IEEE 802.15.4 radio, and a dedicated scan core that enhances system operation.

| Title | Date | Download | Alert |
| --- | --- | --- | --- |
| BCM43109 - 2.4/5/6 GHz IEEE 802.11bn 2x2 Wireless LAN MAC/Baseband/Radio, Dual-Core Bluetooth, IEEE 802.15.4, and Scan Radio Product Brief<br>Version:<br>PB100<br>Language:<br>English | 09/24/2025 | [Download](https://docs.broadcom.com/docs/43109-PB1XX)<br>(194.7 KB) |  |

### Features

- IEEE 802.11bn compliant
- Dual-stream spatial multiplexing data rate of up to 5 Gbps during single-band operation and 5.25 Gbps in RSDB mode
- Up to 320 MHz channels for the 2×2 5 GHz and 6 GHz radio, and 20 MHz channels for the 2×2 2.4 GHz radio
- STR MLO and EMLSR support
- Scan radio enhances 2.4 GHz, 5 GHz, and 6 GHz channel performance
- Dual-core BT support with 2G and higher band SDB with HDT
- IEEE 802.15.4 support
- PCIe base specification revision 3.0 for ×1 lane

### Applications

- Low-power mobile devices
- Tablets

### Lifecycle Status

Preliminary

| Specification            | Value       |
|--------------------------|-------------|
| Lifecycle                | Preliminary |
| Distributor Inventory     | No          |

## Also of Interest

- [Wi-Fi with Bluetooth Wi-Fi Modules ...](https://www.broadcom.com/products/wireless/wireless-lan-bluetooth)
- [BCM43013 Low Power Dual-Band 802.11n...](https://www.broadcom.com/products/wireless/wireless-lan-bluetooth/bcm4313)
- [BCM4390 Wi-Fi7 and Bluetooth 5 Combo Chipset](https://www.broadcom.com/products/wireless/wireless-lan-bluetooth/bcm4390)