{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CC2541F256TRHARQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CC2541F256TRHARQ1","canonicalUrl":"https://icboms.com/texas-instruments/CC2541F256TRHARQ1","factsUrl":"https://icboms.com/api/mcp/products/CC2541F256TRHARQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments CC2541F256TRHARQ1, Automotive AEC-Q100 Bluetooth 4.0 TxRx + MCU, 256kB Flash, 8kB RAM, -94dBm sensitivity, 0dBm output, 2Mbps data rate, 23 GPIO, I²C/SPI/USART, -40°C~105°C, 40-VQFN (6x6).","salesMarkdown":"## Automotive Bluetooth 4.0 SoC with integrated MCU — the AEC-Q100 differentiator The Texas Instruments CC2541F256TRHARQ1 is a single-chip Bluetooth 4.0 transceiver with an integrated 8051-compatible MCU, purpose-built for automotive applications. ## RF link budget and data rate — what the sensitivity and output power mean for range With a -94 dBm receiver sensitivity and 0 dBm transmit output power, this part delivers a link budget around 94 dB — enough for reliable communication across a vehicle cabin or between body modules at typical automotive distances. The 2 Mbps maximum data rate supports Bluetooth 4.0's enhanced data rate (EDR) for faster firmware updates or sensor data streaming. Modulation options include GFSK and MSK, covering both basic rate and EDR modes. ## Supply range and current consumption — sizing the power rail Receive current sits between 18.3 mA and 20.8 mA; transmit current ranges from 17.2 mA to 18.6 mA. These numbers are tight enough that a 150 mA LDO can supply the chip plus a few external sensors without headroom issues. ## GPIO and serial interfaces — peripheral integration without an external MCU Twenty-three GPIOs and I²C, SPI, and USART serial interfaces mean this SoC can directly manage sensors, actuators, and displays without a separate host microcontroller. For a typical automotive BLE sensor module — temperature, pressure, or door-lock status — the CC2541F256TRHARQ1 handles the radio stack and the application logic in one package, saving board space and BOM cost. ## Package and footprint — 40-VQFN with exposed pad The supplier device package is 40-VQFN (6x6).","metaTitle":"CC2541F256TRHARQ1 Texas Instruments Bluetooth 4.0 SoC","metaDescription":"Texas Instruments CC2541F256TRHARQ1 automotive Bluetooth 4.0 TxRx + MCU with 256KB Flash, 8KB RAM, -94dBm sensitivity, 0dBm output, -40°C to 105°C, 40-VQFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF & Wireless ICs"],"specifications":{"Mfr":"Texas Instruments","GPIO":"23","Type":"TxRx + MCU","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"Bluetooth v4.0","Frequency":"2.4GHz","Modulation":"GFSK, MSK","Memory Size":"256kB Flash, 8kB RAM","Sensitivity":"-94dBm","Mounting Type":"Surface Mount","Package / Case":"40-VFQFN Exposed Pad","Power - Output":"0dBm","Product Status":"Active","Data Rate (Max)":"2Mbps","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 3.6V","Serial Interfaces":"I²C, SPI, USART","RF Family/Standard":"Bluetooth","Base Product Number":"CC2541","Current - Receiving":"18.3mA ~ 20.8mA","Operating Temperature":"-40°C~105°C","Current - Transmitting":"17.2mA ~ 18.6mA","Supplier Device Package":"40-VQFN (6x6)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.5360","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bb51420dc90bcd00bdca2920e00dfda3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between CC2541F256TRHARQ1 and CC2541F256RHAR?","answer":"The CC2541F256RHAR is the standard commercial-grade version without AEC-Q100 certification and typically has a narrower temperature range. The suffix 'Q1' denotes automotive qualification. Both share the same 256 KB Flash, 8 KB RAM, Bluetooth 4.0 protocol, and 40-VQFN package, so they are pin-compatible — but only the Q1 variant should be used in automotive applications requiring AEC-Q100 compliance."},{"question":"Does CC2541F256TRHARQ1 support Bluetooth 4.0 or 4.2?","answer":"The CC2541F256TRHARQ1 supports Bluetooth v4.0, not Bluetooth 4.2. It implements the Bluetooth 4.0 low-energy (BLE) specification with GFSK and MSK modulation at data rates up to 2 Mbps. For designs requiring Bluetooth 4.2 features such as extended data length or LE Secure Connections, a different device from the CC254x family or a newer generation would be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CC2541F256TRHARQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CC2541F256TRHARQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}