# F280025PTSR

**Texas Instruments** · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)

F280025PTSR from Texas Instruments, in a LQFP-48(7x7). 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 | GPIO29 | bidirectional | General Purpose Input/Output 29, multiplexed with multiple functions including SCIA_TX and ePWM7_B |
| 2 | GPIO28 | bidirectional | General Purpose Input/Output 28, multiplexed with SCIA_RX and ePWM7_A |
| 3 | XRSn | bidirectional | Device Reset input and Watchdog Reset output, open-drain with internal pull-up; 2.2kΩ to 10kΩ external pull-up recommended with optional 100nF noise filter capacitor to VSS |
| 4 | A6/C6 | input | Analog Input (ADC-A input 6 or ADC-C input 6), no ADC channel associated with this pin |
| 5 | A3/C5/VDAC | input | ADC-A Input 3 / ADC-C Input 5 / Optional external reference voltage for on-chip CMPSS DAC; internal capacitor (connected to VSSA) requires minimum 1µF external capacitor if used as DAC reference |
| 6 | A2/C9 | input | ADC-A Input 2 / ADC-C Input 9 |
| 7 | A15/C7 | input | ADC-A Input 15 / ADC-C Input 7 |
| 8 | A11/C0 | input | ADC-A Input 11 / ADC-C Input 0 |
| 9 | A5/C2 | input | ADC-A Input 5 / ADC-C Input 2 |
| 10 | A1 | input | Analog Input 1 (not multiplexed with ADC channel) |
| 11 | A0/C15 | input | ADC-A Input 0 / ADC-C Input 15 |
| 12 | VREFHI | input | ADC High Reference Voltage (external or internally generated); 2.2µF minimum capacitor required between VREFHI and VREFLO placed as close to device as possible |
| 13 | VREFLO | input | ADC Low Reference Voltage, typically connected to VSSA |
| 14 | A12/C1 | input | ADC-A Input 12 / ADC-C Input 1 |
| 15 | A7/C3 | input | ADC-A Input 7 / ADC-C Input 3 |
| 16 | A8/C11 | input | ADC-A Input 8 / ADC-C Input 11 |
| 17 | VSSA | power_in | Analog Ground, must be connected to VSS |
| 18 | VDDA | power_in | 3.3V Analog Power Supply; minimum 2.2µF decoupling capacitor required on each pin |
| 19 | A4/C14 | input | ADC-A Input 4 / ADC-C Input 14 |
| 20 | A9/C8 | input | ADC-A Input 9 / ADC-C Input 8 |
| 21 | A10/C10 | input | ADC-A Input 10 / ADC-C Input 10 |
| 22 | VSS | power_in | Digital Ground |
| 23 | GPIO13 | bidirectional | General Purpose Input/Output 13, multiplexed with ePWM7_B and other peripheral functions |
| 24 | GPIO12 | bidirectional | General Purpose Input/Output 12, multiplexed with ePWM7_A and other peripheral functions |
| 25 | GPIO33 | bidirectional | General Purpose Input/Output 33, multiplexed with I2CA_SCL and other functions |
| 26 | GPIO16 | bidirectional | General Purpose Input/Output 16, multiplexed with SPIA_SIMO and XCLKOUT |
| 27 | GPIO24 | bidirectional | General Purpose Input/Output 24, multiplexed with OUTPUTXBAR1 and other functions |
| 28 | TCK | input | JTAG Test Clock input with internal pull-up resistor |
| 29 | GPIO37/TDO | output | JTAG Test Data Output (default multiplex selection, tri-state when JTAG inactive) or GPIO37; requires internal or external pull-up to avoid input floating during JTAG inactivity |
| 30 | TMS | bidirectional | JTAG Test Mode Select input with internal pull-up resistor; external 2.2kΩ pull-up to VDDIO recommended for normal operation |
| 31 | GPIO35/TDI | input | JTAG Test Data Input (default multiplex selection) or GPIO35; internal pull-up disabled by default but should be enabled or external pull-up added to avoid input floating |
| 32 | GPIO32 | bidirectional | General Purpose Input/Output 32, multiplexed with I2CA_SDA and other functions |
| 33 | GPIO18_X2 | bidirectional | General Purpose Input/Output 18 or Crystal Oscillator Output X2; used as alternate function for external crystal circuit |
| 34 | GPIO19_X1 | input | General Purpose Input/Output 19 or Crystal Oscillator Input X1 / Single-ended Clock Input; used as alternate function for external crystal or single-ended 3.3V clock source |
| 35 | VDDIO | power_in | 3.3V Digital I/O Power Supply; multiple pins require individual decoupling capacitors |
| 36 | VDD | power_in | 1.2V Digital Logic Power Supply (internally generated by VREG); decoupling capacitors required at each pin per PMM specifications |
| 37 | VSS | power_in | Digital Ground |
| 38 | GPIO4 | bidirectional | General Purpose Input/Output 4, multiplexed with ePWM3_A and other peripheral functions |
| 39 | GPIO3 | bidirectional | General Purpose Input/Output 3, multiplexed with ePWM2_B and other peripheral functions |
| 40 | GPIO2 | bidirectional | General Purpose Input/Output 2, multiplexed with ePWM2_A and OUTPUTXBAR1 |
| 41 | GPIO1 | bidirectional | General Purpose Input/Output 1, multiplexed with ePWM1_B and I2CA_SCL |
| 42 | GPIO0 | bidirectional | General Purpose Input/Output 0, multiplexed with ePWM1_A and other peripheral functions |
| 43 | GPIO7 | bidirectional | General Purpose Input/Output 7, multiplexed with ePWM4_B and other peripheral functions |
| 44 | VSS | power_in | Digital Ground |
| 45 | VDD | power_in | 1.2V Digital Logic Power Supply (internally generated by VREG); decoupling capacitors required at each pin per PMM specifications |
| 46 | VDDIO | power_in | 3.3V Digital I/O Power Supply; multiple pins require individual decoupling capacitors |
| 47 | GPIO5 | bidirectional | General Purpose Input/Output 5, multiplexed with ePWM3_B and other peripheral functions |
| 48 | GPIO6 | bidirectional | General Purpose Input/Output 6, multiplexed with ePWM4_A and OUTPUTXBAR4 |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | LQFP-48(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 48 |

## CAD (KiCad official)

- Symbol: `F280025PTSR`
- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`
- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files: `f280025ptsr-etched.step` / `f280025ptsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `f280025ptsr.step` / `f280025ptsr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tms320f280025c) (245 pp, sha256 `0723d8e3e09e1f8b`, retrieved 2026-09-30, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/f280025ptsr-datasheet.pdf)