Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

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