The TLSR825x series provides ultra-low power, concurrent multi-protocol IoT solutions in the ISM 2.4GHz band. This series supports Bluetooth® Low Energy (LE), Bluetooth® Mesh, Zigbee, RF4CE, and 2.4GHz proprietary protocols.
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Zigbee
Engineered for seamless mesh connectivity and IoT integration, Zigbee’s end-to-end platform combines stability, versatility, and industry-proven standards. Leveraging its robust cluster framework and the universal Dotdot protocol, Zigbee enables manufacturers to craft devices with native cross-compatibility. This approach ensures effortless collaboration between products, driving unified, future-ready ecosystems that span diverse market sectors.
TLSR825x Series
The TLSR825x series provides ultra-low power, concurrent multi-protocol IoT solutions in the ISM 2.4GHz band. This series supports Bluetooth® Low Energy (LE), Bluetooth® Mesh, Zigbee, RF4CE, and 2.4GHz proprietary protocols.
| Part Number |
Datasheet |
Bluetooth® Protocol |
MCU | SRAM | Flash | GPIO |
Package Size |
Test Report |
| TLSR8258F1KAT32 |  |
Bluetooth® 5.4 |
T-MCU 32-bit |
64KB | 1MB | 17 | QFN 5x5, 32 pins | |
|
TLSR8258F1KET48A |
|
Bluetooth® 5.4 | T-MCU 32-bit | 64KB | 1MB | 32 | TQFN 7x7, 48 pins | |
|
TLSR8258F1KET32 |
|
Bluetooth® 5.4 | T-MCU 32-bit | 64KB | 1MB | 17 | QFN 5x5, 32 pins | |
| TLSR8258F512ET48 | |
Bluetooth® 5.4 | T-MCU 32-bit | 64KB | 512KB | 32 | QFN 7x7, 48 pins | Reliability |
| TLSR8258F512ET32 | |
Bluetooth® 5.4 | T-MCU 32-bit | 64KB | 512KB | 17 | QFN 5x5, 32 pins | Reliability |
| TLSR8253F512ET32 | |
Bluetooth® 5.4 | T-MCU 32-bit | 48KB | 512KB | 17 | QFN 5x5, 32 pins | Reliability |
| TLSR8253F512AT32 | |
Bluetooth® 5.4 | T-MCU 32-bit | 48KB | 512KB | 17 | QFN 5x5, 32 pins | Reliability |
| TLSR8251F512ET48 | |
Bluetooth® 5.4 | T-MCU 32-bit | 32KB | 512KB | 32 | QFN 7x7, 48 pins | Reliability |
| TLSR8251F512ET32 | |
Bluetooth® 5.4 | T-MCU 32-bit | 32KB | 512KB | 17 | QFN 5x5, 32 pins | Reliability |
| TLSR8251F512ET24 | |
Bluetooth® 5.4 | T-MCU 32-bit | 32KB | 512KB | 10 | QFN 4x4, 24 pins |
Software
Hardware
Software
Telink provides a complete SDK to help you develop and build IoT smart devices, which covers your entire product life cycle, from development to OTA maintenance. The Telink SDK always includes the latest technology protocols and provides secure and stable connectivity, which, combined with Telink IoT Studio integrated development tools, can help quickly achieve mass production
| SDK Name |
Supported Chip |
SDK Version |
Download SDK |
SDK Handbook |
| Bluetooth® LE Single Connection | TLSR8258/8253/8251 | V3.4.2.6 | Github | |
| Bluetooth® LE Multi Connection | TLSR8258/8253 | V4.0.2.1 | Github | |
| Bluetooth® Mesh | TLSR8258/8253 | V4.1.0.1 | Github | |
| RF4CE | TLSR8258 | V2.4.2.0 | Github | |
| Zigbee | TLSR8258/8656 | V3.7.1.2_Patch_0001 | Github | |
| Zigbee + Bluetooth® LE Concurrent Mode | TLSR8258 | V2.4.0.1_Patch_0001 | Github | |
| 802.15.4 | TLSR8258/8253/8251 | V1.3.0.3 | Github | |
| Platform | TLSR8258 | V3.1.0 | Github | |
Hardware
Provide complete hardware guideline and reference design to build various device forms based on the Telink hardware development platform.
| Picture | Product Name | Description | User Manual | Reference Design | Buy Now |
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TLSR8258 Development Board | The TLSR8258 development board is designed based on the TLSR8258F512KET48 chip. It's used to verify the development of the TLSR825x series chips and supports various functional tests, such as RF conducted testing, current testing, audio input and output testing, and any combination of lights and buttons. |
Download | Download |  |
