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F280023PTSR

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

F280023PTSR 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 I/O 29; configurable as input or output with programmable pull-up, supporting SCI transmit, ePWM output, or other peripheral functions
2 GPIO28 bidirectional General Purpose I/O 28; configurable as input or output with programmable pull-up, supporting SCI receive, ePWM output, or other peripheral functions
3 XRSn bidirectional Device reset input (active low) and watchdog reset output with open-drain configuration; external 2.2kΩ to 10kΩ pull-up to VDDIO with optional 100nF capacitor to VSS for noise filtering
4 A6, C6 input Analog input pins for ADC channels serving as ADC-A input 6 and ADC-C input 6 (or general analog inputs); support single-ended signal mode from VREFLO to VREFHI range
5 A3/C5/VDAC input Dual ADC analog inputs (A3/ADC-A input 3, C5/ADC-C input 5) and optional external reference voltage for on-chip CMPSS DAC with internal capacitor to VSSA; minimum 1µF external capacitor required when used as CMPSS DAC reference
6 A2/C9 input ADC analog inputs (A2/ADC-A input 2, C9/ADC-C input 9) supporting single-ended signal mode from VREFLO to VREFHI range
7 A15/C7 input ADC analog inputs (A15/ADC-A input 15, C7/ADC-C input 7) supporting single-ended signal mode from VREFLO to VREFHI range
8 A11/C0 input ADC analog inputs (A11/ADC-A input 11, C0/ADC-C input 0) supporting single-ended signal mode from VREFLO to VREFHI range
9 A5/C2 input ADC analog inputs (A5/ADC-A input 5, C2/ADC-C input 2) supporting single-ended signal mode from VREFLO to VREFHI range
10 A1 input General analog input (ADC-A or ADC-C channel 1) accepting signals within VREFLO to VREFHI range for analog-to-digital conversion
11 A0/C15 input ADC analog inputs (A0/ADC-A input 0, C15/ADC-C input 15) supporting single-ended signal mode from VREFLO to VREFHI range
12 VREFHI input ADC high reference voltage; in external reference mode externally driven (2.4V to 3.3V nominal), in internal reference mode device-driven to 1.65V or 2.5V; minimum 2.2µF capacitor required between VREFHI and VREFLO
13 VREFLO passive ADC low reference voltage internally connected to VSSA, providing 0V reference ground for ADC single-ended conversions
14 A12/C1 input ADC analog inputs (A12/ADC-A input 12, C1/ADC-C input 1) supporting single-ended signal mode from VREFLO to VREFHI range
15 A7/C3 input ADC analog inputs (A7/ADC-A input 7, C3/ADC-C input 3) supporting single-ended signal mode from VREFLO to VREFHI range
16 A8/C11 input ADC analog inputs (A8/ADC-A input 8, C11/ADC-C input 11) supporting single-ended signal mode from VREFLO to VREFHI range
17 VSSA power_in Analog ground reference for ADC and analog modules; must be connected to digital ground VSS with minimum 2.2µF capacitor on VDDA for decoupling
18 VDDA power_in 3.3V analog power supply for ADC, temperature sensor, CMPSS, and analog modules; minimum 2.2µF decoupling capacitor required near pin
19 A4/C14 input ADC analog inputs (A4/ADC-A input 4, C14/ADC-C input 14) supporting single-ended signal mode from VREFLO to VREFHI range
20 A9/C8 input ADC analog inputs (A9/ADC-A input 9, C8/ADC-C input 8) supporting single-ended signal mode from VREFLO to VREFHI range
21 A10/C10 input ADC analog inputs (A10/ADC-A input 10, C10/ADC-C input 10) supporting single-ended signal mode from VREFLO to VREFHI range
22 VSS power_in Digital ground connection; all VSS pins must be connected to circuit board ground for proper signal return path and noise immunity
23 GPIO13 bidirectional General Purpose I/O 13; configurable as input or output with programmable pull-up, supporting ePWM, eQEP, CMPSS, SPI, I2C, and other peripheral functions
24 GPIO12 bidirectional General Purpose I/O 12; configurable as input or output with programmable pull-up, supporting ePWM, eQEP, PMBus, LIN, SPI, and other peripheral functions
25 GPIO33 bidirectional General Purpose I/O 33; configurable as input or output with programmable pull-up, supporting I2C, SPI, LIN, eQEP, ADC start-of-conversion, and other peripheral functions
26 GPIO16 bidirectional General Purpose I/O 16; configurable as input or output with programmable pull-up, supporting SPI, ePWM, eQEP, PMBus, XCLKOUT, and other peripheral functions
27 GPIO24 bidirectional General Purpose I/O 24; configurable as input or output with programmable pull-up, supporting output X-BAR, eQEP, SPI, PMBus, LIN, I2C, and error status output functions
28 TCK input JTAG test clock input with internal pull-up resistor; minimum 66.66ns period for JTAG protocol compatibility and timing requirements
29 GPIO37/TDO tri_state General Purpose I/O 37 or JTAG Test Data Output; when configured as JTAG TDO, operates in tri-state mode during inactive periods, requiring internal or external pull-up resistor to prevent floating input
30 TMS bidirectional JTAG Test Mode Select input with internal pull-up resistor; external 2.2kΩ pull-up to VDDIO recommended for normal operation to keep JTAG interface in reset state
31 GPIO35/TDI input General Purpose I/O 35 or JTAG Test Data Input; when configured as JTAG TDI, default multiplexer selection with optional internal pull-up resistor or external 1kΩ to 100kΩ pull-up recommended to prevent floating input
32 GPIO32 bidirectional General Purpose I/O 32; configurable as input or output with programmable pull-up, supporting I2C, SPI, LIN, eQEP, FSI, ADC start-of-conversion, and other peripheral functions
33 GPIO18_X2 output General Purpose I/O 18 or Crystal oscillator output (X2); in crystal mode provides output for parallel-resonant quartz crystal or ceramic resonator circuit
34 GPIO19_X1 input General Purpose I/O 19 or Crystal oscillator input (X1); in crystal mode accepts input from quartz crystal or single-ended 3.3V logic-level clock signal with 50% duty cycle
35 VDDIO power_in 3.3V digital I/O power supply for GPIO, digital peripherals, JTAG, and I/O buffers; minimum 0.1µF capacitor per pin or consolidated decoupling capacitor required
36 VDD power_in 1.2V digital core power supply for CPU, memory, and internal logic, generated from VDDIO via internal VREG; minimum total 10-22µF capacitor required with distributed decoupling at each pin
37 VSS power_in Digital ground connection; all VSS pins must be connected to circuit board ground for proper signal return path and noise immunity
38 GPIO4 bidirectional General Purpose I/O 4; configurable as input or output with programmable pull-up, supporting ePWM, eQEP, SPI, CAN, FSI, CLB, and other peripheral functions
39 GPIO3 bidirectional General Purpose I/O 3; configurable as input or output with programmable pull-up, supporting ePWM, SPI, SCI, CAN, PMBus, I2C, output X-BAR, and other peripheral functions
40 GPIO2 bidirectional General Purpose I/O 2; configurable as input or output with programmable pull-up, supporting ePWM, output X-BAR, PMBus, SPI, SCI, CAN, I2C, and other peripheral functions
41 GPIO1 bidirectional General Purpose I/O 1; configurable as input or output with programmable pull-up, supporting ePWM, I2C, SPI, eQEP, output X-BAR, and other peripheral functions
42 GPIO0 bidirectional General Purpose I/O 0; configurable as input or output with programmable pull-up, supporting ePWM, I2C, SPI, FSI, CLB output X-BAR, and other peripheral functions
43 GPIO7 bidirectional General Purpose I/O 7; configurable as input or output with programmable pull-up, supporting ePWM, output X-BAR, eQEP, SPI, FSI, CLB, and other peripheral functions
44 VSS power_in Digital ground connection; all VSS pins must be connected to circuit board ground for proper signal return path and noise immunity
45 VDD power_in 1.2V digital core power supply for CPU, memory, and internal logic, generated from VDDIO via internal VREG; minimum total 10-22µF capacitor required with distributed decoupling at each pin
46 VDDIO power_in 3.3V digital I/O power supply for GPIO, digital peripherals, JTAG, and I/O buffers; minimum 0.1µF capacitor per pin or consolidated decoupling capacitor required
47 GPIO5 bidirectional General Purpose I/O 5; configurable as input or output with programmable pull-up, supporting ePWM, output X-BAR, CAN, SPI, LIN, FSI, CLB, and other peripheral functions
48 GPIO6 bidirectional General Purpose I/O 6; configurable as input or output with programmable pull-up, supporting ePWM, output X-BAR, SPI, LIN, FSI, CLB SYNCOUT, and other peripheral functions

Key specifications

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

CAD (KiCad official)

  • Symbol: F280023PTSR
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: f280023ptsr-etched.step / f280023ptsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); f280023ptsr.step / f280023ptsr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (245 pp, sha256 0723d8e3e09e1f8b, retrieved 2026-10-07, 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