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Texas Instruments CC1111F32RSPR
- Part No.:
- CC1111F32RSPR
- Manufacturer:
- Texas Instruments
- Category:
- RF Transceiver ICs
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
CC1111F32RSPR.pdf
- Description:
- IC RF TXRX+MCU ISM<1GHZ 36VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,020
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Product details
Overview
CC1111F32RSPR from Texas Instruments is a low-power sub-1 GHz system-on-chip (SoC) integrating an enhanced 8051 MCU, 32 kB flash, 4 kB RAM, USB 2.0 controller, and CC1101-based RF transceiver operating at 315/433/868/915 MHz ISM bands. It delivers −110 dBm sensitivity at 1.2 kBaud, 10 dBm programmable output power, and 0.3 µA deep-sleep current for battery-powered wireless sensor nodes and USB dongles.
For engineers reviewing the CC1111F32RSPR datasheet, CC1111F32RSPR pinout, CC1111F32RSPR application, or CC1111F32RSPR equivalent, key selection factors include USB 2.0 interface support, QFN36 6×6 mm package, 32 kB flash/4 kB RAM memory configuration, sub-1 GHz RF performance in PM2/PM3 low-power modes, and compatibility with TI's CC2511Fx software stack.
Technical Context
The CC1111F32RSPR implements a dual-oscillator architecture: a 48 MHz crystal oscillator for USB and RF operation, and a low-power RC oscillator or optional 32.768 kHz crystal for sleep timing. Its RF subsystem uses a fully integrated frequency synthesizer with no external filters or RF switches required, supporting 2-FSK, GFSK, MSK, ASK, and OOK modulation.
Power management includes four distinct operating modes (PM0–PM3), with hardware-accelerated AES-128 encryption, DMA-driven RF packet handling, and I2S audio interface - all coordinated by an 8051 core delivering ~8× standard 8051 performance while maintaining full SW compatibility with CC2511Fx devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 300–348 MHz, 391–464 MHz, and 782–928 MHz - covers global ISM/SRD bands without external tuning components |
| Receiver Sensitivity | −110 dBm at 1.2 kBaud - enables reliable reception in low-SNR industrial environments |
| Max Output Power | +10 dBm programmable - sufficient for 100+ m line-of-sight range in 868/915 MHz bands |
| USB Interface | Full-Speed USB 2.0 (12 Mbps) with 1 kB FIFO - eliminates RS-232 bottlenecks in PC-connected dongles |
| Memory | 32 kB flash + 4 kB SRAM - supports complex protocol stacks and over-the-air firmware updates |
| Low-Power Modes | 0.3 µA in PM3, 0.5 µA in PM2 - extends coin-cell battery life to multi-year operation |
| Supply Voltage | 3.0 V to 3.6 V - matches standard Li-ion/LiPo and regulated 3.3 V systems |
Pinout & Package
CC1111F32RSPR is housed in a RoHS-compliant 6×6 mm QFN-36 package with exposed thermal pad (Package Code: RSPR). Pin functions are validated per TI SWRS033H Rev H, pages 29–32 and 236–239.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | 3.0–3.6 V main supply; decoupling required per Section 9.6 |
| DCOUPL | RF supply decoupling | Internal RF regulator bypass; must connect 100 nF capacitor to ground |
| RF_P / RF_N | Differential RF interface | Direct connection to balun or matching network; no external PA or LNA needed |
| DP / DM | USB differential pair | Full-speed USB 2.0 physical layer; requires 27 Ω series resistors and ESD protection |
| P0_0–P0_7 | General-purpose I/O | 8-bit port with configurable pull-up/pull-down; P0_6/P0_7 dedicated to USB PHY |
| P1_0–P1_7 | General-purpose I/O | 8-bit port; supports analog inputs (ADC), USART, timer capture, and interrupt generation |
| P2_0–P2_4 | General-purpose I/O | 5-bit port; includes reset input (P2_4) and debug interface signals |
| XOSC_Q1/Q2 | 48 MHz crystal interface | Connects to fundamental-mode 48 MHz crystal; internal load caps enabled |
| X32K_Q1/Q2 | 32.768 kHz crystal interface | Optional low-power RTC clock source; internal load caps enabled |
| RESET_N | Active-low reset | Asynchronous reset input; internal pull-up; compatible with open-drain reset supervisors |
Key Features
| Feature | Design Value |
|---|---|
| CC1101-based RF transceiver | Integrated synthesizer, AGC, RSSI/LQI reporting, and packet hardware acceleration eliminate external RF ICs and reduce BOM count |
| Full-Speed USB 2.0 controller | 12 Mbps throughput with 1 kB endpoint FIFO enables high-throughput PC communication without host CPU overhead |
| Hardware AES-128 coprocessor | Offloads encryption/decryption from 8051 core, enabling secure OTA updates and encrypted sensor data transmission |
| I2S audio interface | Full-duplex stereo-capable interface allows direct connection to external DAC/ADC for voice-enabled remote controls or telemetry |
| DMA controller | Enables zero-CPU-overhead RF packet transfers and peripheral-to-memory data movement, critical for low-duty-cycle operation |
Applications
| Wireless Sensor Node | USB Protocol Analyzer Dongle |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data every 5 minutes to a gateway via 868 MHz ISM band. IC Role / Device Role / Timing Role: SoC handles sensing (via ADC), RF transmission, USB bridging, and ultra-low-power scheduling using PM3 sleep mode. Use Value: 0.3 µA PM3 current enables >5-year CR2032 battery life; integrated RF eliminates external transceiver layout complexity. | Use Scenario: Field-deployable USB dongle capturing and decoding proprietary sub-GHz wireless protocols for debugging. IC Role / Device Role / Timing Role: Acts as USB-to-RF bridge with real-time packet capture, timestamping, and host streaming via bulk endpoints. Use Value: Full-Speed USB 2.0 (12 Mbps) prevents packet loss during burst transmissions; on-chip packet filtering reduces host-side processing load. |
| Industrial Remote Control | Smart Meter Communication Module |
Use Scenario: Handheld remote controlling HVAC actuators in factory settings using 433 MHz OOK/GFSK. IC Role / Device Role / Timing Role: MCU executes command logic, RF transmits encrypted payloads, USB enables firmware updates and diagnostics. Use Value: Hardware AES-128 ensures secure command authentication; 10 dBm output provides robust link margin in electrically noisy plants. | Use Scenario: AMR module embedded in electricity meter, transmitting consumption data hourly over 915 MHz band to collector. IC Role / Device Role / Timing Role: Manages time-synced transmissions, CRC-checked packet assembly, and deep-sleep wake-up via sleep timer. Use Value: Integrated packet hardware (sync word detection, address check, auto-CRC) reduces firmware size and improves reliability in dense mesh networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sub-1 GHz SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CC1111F16RSPR | 16 kB flash / 2 kB RAM; identical RF, USB, and peripheral set | Suitable for simpler protocol stacks where 32 kB flash is unnecessary | Select when firmware footprint <12 kB and cost optimization is prioritized over future feature expansion |
| CC2511F32RSPR | 2.4 GHz ISM band only; same 8051 core, USB, and memory but different RF front-end | Used in Zigbee/Proprietary 2.4 GHz networks; incompatible with sub-GHz regulatory domains | Choose only for 2.4 GHz deployments requiring coexistence with Bluetooth/Wi-Fi; not a drop-in replacement |
Compared with CC1111F16RSPR, CC1111F32RSPR offers double flash/RAM for complex security or multi-protocol stacks; versus CC2511F32RSPR, it provides regulatory-compliant operation in 315/433/868/915 MHz bands essential for long-range, low-interference utility and industrial use cases.
Availability
CC1111F32RSPR is available at Aetrix Electronics and suitable for wireless sensor networks, USB dongle development, and industrial telemetry requiring stable component supply across extended production lifecycles.
Supply support for CC1111F32RSPR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions with broad industrial and automotive design-in support.
The CC1111Fx product line delivers integrated sub-1 GHz SoCs targeting battery-operated wireless applications in utility, building automation, and sensor networking - emphasizing RF reliability, ultra-low power, and USB-hosted development agility.
FAQ
What is the maximum data rate supported by the CC1111F32RSPR RF transceiver?
The CC1111F32RSPR supports programmable data rates up to 500 kBaud in 2-FSK mode. Real-world achievable rates depend on modulation scheme, channel bandwidth, and regulatory constraints - for example, 26 kBaud is typical in ETSI-compliant 868 MHz operation. The CC1111F32RSPR achieves this using its integrated baseband modem and DMA-assisted packet handling, minimizing CPU intervention.
Does the CC1111F32RSPR support external crystal oscillators for both high-speed and low-power timing?
Yes, the CC1111F32RSPR supports two independent crystal interfaces: a mandatory 48 MHz fundamental-mode crystal on XOSC_Q1/Q2 for USB and RF operation, and an optional 32.768 kHz crystal on X32K_Q1/Q2 for precision sleep timer and RTC functions. Both use internal load capacitors; no external caps are required unless specified by crystal manufacturer.
How many general-purpose I/O pins does the CC1111F32RSPR provide?
The CC1111F32RSPR provides 19 configurable GPIO pins: P0_0–P0_5 (6 pins), P1_0–P1_7 (8 pins), and P2_0–P2_4 (5 pins). Note that P0_6 and P0_7 are dedicated to USB DP/DM and are not general-purpose. All GPIOs support digital input/output, interrupt generation, and multiple peripheral mappings including ADC, USART, and timer capture.
Is the CC1111F32RSPR pin-compatible with the CC1110Fx series?
No, the CC1111F32RSPR is not pin-compatible with CC1110Fx devices. While both use the QFN-36 RSPR package, CC1111Fx assigns P0_6/P0_7 to USB DP/DM, whereas CC1110Fx uses those pins as GPIO. Additionally, CC1111Fx requires 48 MHz crystal operation and 3.0–3.6 V supply, differing from CC1110Fx's 26 MHz and 2.0–3.6 V specs - necessitating PCB redesign for migration.
What USB endpoint configurations does the CC1111F32RSPR support?
The CC1111F32RSPR USB controller supports five bi-directional endpoints plus control endpoint 0, with configurable FIFO allocation (8–512 byte packets) for Bulk, Interrupt, and Isochronous transfers. Endpoint memory is drawn from a shared 1 kB FIFO, allowing flexible IN/OUT buffer sizing - for example, allocating 768 bytes to EP1 IN and 256 bytes to EP2 OUT to optimize throughput for asymmetric data flows in CC1111F32RSPR-based dongles.
CC1111F32RSPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 36-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- General ISM < 1GHz
- Protocol:
- -
- Modulation:
- 2FSK, ASK, GFSK, MSK, OOK
- Frequency:
- 300MHz ~ 348MHz, 391MHz ~ 464MHz, 782MHz ~ 928MHz
- Data Rate (Max):
- 500kBaud
- Power - Output:
- 10dBm
- Sensitivity:
- -112dBm
- Memory Size:
- 32kB Flash, 4kB SRAM
- Serial Interfaces:
- I2S, USART, USB
- GPIO:
- 19
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Receiving:
- 16.2mA ~ 21.5mA
- Current - Transmitting:
- 18mA ~ 36.2mA
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 36-VQFN (6x6)
CC1111F32RSPR FAQ
1.How can I place an order for CC1111F32RSPR through Aetrix?
Please submit a Request for Quotation (RFQ) for CC1111F32RSPR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CC1111F32RSPR reliable?
The price and inventory of CC1111F32RSPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CC1111F32RSPR is usually 5 days.
3.What payment methods are accepted for CC1111F32RSPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CC1111F32RSPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CC1111F32RSPR?
CC1111F32RSPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CC1111F32RSPR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CC1111F32RSPR?
For technical support, including CC1111F32RSPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CC1111F32RSPR requirements.
6.How does Aetrix verify that CC1111F32RSPR is sourced from the original manufacturer or authorized distributors?
All CC1111F32RSPR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CC1111F32RSPR meets industry standards.
7.What is the process for return or replacement of CC1111F32RSPR?
All CC1111F32RSPR units undergo pre-shipment inspection (PSI). If there is an issue with CC1111F32RSPR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CC1111F32RSPR part is unused and in its original packaging.
Return procedure for CC1111F32RSPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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