# CC2340R52E0RKPR

**Texas Instruments** · Microcontrollers (MCU/MPU/SOC) · QFN-40(5x5)

CC2340R52E0RKPR from Texas Instruments, in a QFN-40(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDDR | power_in | Internal supply, must be powered from the internal DC/DC converter or LDO; tie to pin 34 on the PCB; output trimmed to 1.5 V; do not supply external circuitry from this pin. |
| 2 | DIO8 | bidirectional | Digital GPIO. |
| 3 | DIO9 | bidirectional | Digital GPIO. |
| 4 | DIO10 | bidirectional | Digital GPIO. |
| 5 | DIO11 | bidirectional | Digital GPIO. |
| 6 | DIO12 | bidirectional | Digital GPIO with high-drive capability. |
| 7 | DIO13 | bidirectional | Digital GPIO. |
| 8 | VDDS | power_in | 1.71-V to 3.8-V DIO supply. |
| 9 | DIO14 | bidirectional | Digital GPIO. |
| 10 | DIO15 | bidirectional | Digital GPIO. |
| 11 | DIO16_SWDIO | bidirectional | Digital GPIO and SWD interface mode select or SWDIO, with high-drive capability. |
| 12 | DIO17_SWDCK | bidirectional | Digital GPIO and SWD interface clock, with high-drive capability. |
| 13 | DIO18 | bidirectional | Digital GPIO with high-drive capability. |
| 14 | DIO19 | bidirectional | Digital GPIO with high-drive capability. |
| 15 | DIO20_A11 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 11). |
| 16 | DIO21_A10 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 10). |
| 17 | VDDS | power_in | 1.71-V to 3.8-V DIO supply. |
| 18 | DIO22_A9 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 9). |
| 19 | DIO23_A8 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 8). |
| 20 | DIO24_A7 | bidirectional | Digital or analog GPIO with analog and high-drive capability (ADC channel 7). |
| 21 | DIO25_A6 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 6). |
| 22 | DIO0_A5 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 5). |
| 23 | DIO1_A4 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 4). |
| 24 | DIO2_A3 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 3). |
| 25 | RSTN | input | Digital reset, active low, with no internal pullup resistor. |
| 26 | DIO3_X32P | bidirectional | Digital or analog GPIO, 32-kHz crystal oscillator pin 1, optional TCXO input. |
| 27 | DIO4_X32N | bidirectional | Digital or analog GPIO, 32-kHz crystal oscillator pin 2. |
| 28 | VDDD | power_in | Decoupling of internal 1.28-V regulated core supply; connect an external 1 µF capacitor and do not supply external circuitry. |
| 29 | DIO5_A2 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 2). |
| 30 | DCDC | passive | Switching node of internal DC/DC converter; leave NC if unused. |
| 31 | VDDS | power_in | 1.71-V to 3.8-V analog supply. |
| 32 | DIO6_A1 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 1 / AREF+). |
| 33 | DIO7_A0 | bidirectional | Digital or analog GPIO with analog capability (ADC channel 0 / AREF-). |
| 34 | VDDR | power_in | Internal supply from the internal DC/DC or LDO, trimmed to 1.5 V; connect an external 10 µF decoupling capacitor and tie to pin 1. |
| 35 | X48P | passive | 48-MHz crystal oscillator pin 1. |
| 36 | X48N | passive | 48-MHz crystal oscillator pin 2. |
| 37 | NC | unconnected | No connect. |
| 38 | VDDS | power_in | 1.71-V to 3.8-V analog supply. |
| 39 | ANT | bidirectional | 2.4 GHz TX and RX RF port, 50 ohm. |
| 40 | RFGND | power_in | RF ground. |
| 41 | EGP | power_in | Exposed ground pad, the only non-RF ground connection; requires good electrical connection to the PCB ground plane. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-40(5x5) |
| Category | Embedded Processors & Controllers |
| Pins | 41 |

## CAD (KiCad official)

- Symbol: `CC2340R52E0RKPR`
- Footprint: `Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.6x3.6mm`
- 3D model: QFN-40(5x5) (KiCad packages3D, STEP)
- 3D model files: `cc2340r52e0rkpr-etched.step` / `cc2340r52e0rkpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc2340r52e0rkpr.step` / `cc2340r52e0rkpr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590902818905530368) (69 pp, sha256 `4c19122b59cb987a`, retrieved 2026-10-03, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cc2340r52e0rkpr-datasheet.pdf)