CC2652R vs EFR32BG22

CC2652R vs EFR32BG22: Multi-Protocol Giant vs. Efficient BLE Specialist

Texas Instruments and Silicon Laboratories both produce industry-leading BLE SoCs, but with different design priorities. The CC2652R emphasizes protocol breadth and computational power; the EFR32BG22 optimizes for BLE-specific efficiency and security in a compact package. This comparison helps engineers select between them for BLE-centric products.

Overview

CC2652R is TI's multi-protocol SoC supporting BLE 5.1, IEEE 802.15.4 (Thread, Zigbee), and proprietary 2.4 GHz simultaneously. Its 48 MHz Cortex-M4F application core and dedicated M0 radio processor give it substantial headroom for complex application stacks. The 352 KB SRAM and 352 KB flash support demanding firmware with multiple concurrent protocol stacks. TI's SimpleLink ecosystem, SysConfig graphical configuration tool, and extensive reference designs make it a safe choice for complex products.

EFR32BG22 (Blue Gecko 22) is Silicon Labs' BLE 5.2-optimized SoC in a compact 5 × 5 mm QFN-40 package. It features a 76.8 MHz Cortex-M33 core with TrustZone security extension, 352 KB flash, 32 KB RAM, and Silicon Labs' Secure Vault technology — a hardware security subsystem implementing secure key storage, anti-tamper, attestation, and secure boot. Its radio achieves −106 dBm receive sensitivity and draws only 3.6 mA in active RX, making it among the most efficient mainstream BLE radios available.

Key Differences

• Protocol support: CC2652R handles BLE + Thread + Zigbee + proprietary; EFR32BG22 focuses on BLE 5.2 only (with limited Bluetooth mesh).
• Security: EFR32BG22's Secure Vault provides hardware-isolated key storage, device attestation, and tamper detection — well beyond CC2652R's standard TrustZone implementation.
• Core: EFR32BG22 runs M33 at 76.8 MHz with FPU; CC2652R runs M4F at 48 MHz — both capable, with BG22 having a higher clock ceiling.
• RAM: CC2652R has 352 KB SRAM vs. EFR32BG22's 32 KB — a significant gap for memory-hungry applications.
• RX sensitivity: EFR32BG22 achieves −106 dBm; CC2652R achieves −97 dBm at 1 Mbps — giving BG22 a meaningful link budget advantage in weak signal environments.
• Package size: EFR32BG22 is 5 × 5 mm; CC2652R is 7 × 7 mm.
• Power consumption (RX): EFR32BG22 at 3.6 mA active RX vs. CC2652R at ~5.9 mA — EFR32BG22 is more efficient per byte received.
• Ecosystem: TI SimpleLink SDK vs. Silicon Labs Simplicity Studio — both mature, with different IDE preferences among developers.

Use Cases

CC2652R Excels At

Mixed-protocol deployments requiring simultaneous BLE commissioning, Thread mesh operation, and Zigbee backward compatibility are the CC2652R's home territory. Smart home hubs, commercial building sensors, and Matter-enabled accessories all benefit from its protocol versatility.

Applications with heavy local computation — on-device machine learning inference, complex sensor fusion, or running a full TCP/IP stack alongside BLE — benefit from the CC2652R's 352 KB SRAM, which is 11× larger than EFR32BG22's.

EFR32BG22 Excels At

Security-sensitive BLE products — medical devices requiring FDA 510(k) consideration, industrial devices handling proprietary data, or consumer products targeting IEC 62443 compliance — benefit significantly from Secure Vault's hardware-backed key management and attestation.

Long-range BLE deployments in environments with weak signals (warehouses, building penetration, outdoor asset tracking) benefit from EFR32BG22's −106 dBm receive sensitivity, which translates to roughly 6 dB more link margin than CC2652R.

Battery-constrained BLE-only devices such as door locks, keyless entry fobs, and medical sensors achieve longer runtimes on the EFR32BG22's more efficient radio.

Verdict

Choose the CC2652R for products requiring multi-protocol operation or large amounts of on-chip RAM for complex application logic. It is the better platform when Thread, Zigbee, or Matter via Thread is a requirement.

Choose the EFR32BG22 for BLE-focused products where security certification, RF sensitivity, or RF power efficiency are competitive differentiators. Its Secure Vault is unmatched in the sub-$3 BLE SoC category, and its receive sensitivity gives it an edge in challenging RF environments.