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README

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TMS320F28031PAGQ

Texas Instruments · Microcontrollers (MCU/MPU/SOC) · TQFP-64(10x10)

TMS320F28031PAGQ from Texas Instruments, in a TQFP-64(10x10). 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 GPIO22/EQEP1S/LINTXA bidirectional General-purpose I/O 22 with alternate functions eQEP1 strobe (I/O) and LIN transmit (O); GPIO function is the reset default and the internal pull-up is enabled after reset.
2 GPIO32/SDAA/EPWMSYNCI/ADCSOCAO bidirectional General-purpose I/O 32 with alternate functions I2C-A data (open-drain I/OD), ePWM external sync input and ADC start-of-conversion A output.
3 GPIO33/SCLA/EPWMSYNCO/ADCSOCBO bidirectional General-purpose I/O 33 with alternate functions I2C-A clock (open-drain I/OD), ePWM external sync output and ADC start-of-conversion B output.
4 GPIO23/EQEP1I/LINRXA bidirectional General-purpose I/O 23 with alternate functions eQEP1 index (I/O) and LIN receive (I).
5 VDD power_in CPU and logic digital power pin; when the internal VREG is used, place a 1.2 µF (minimum) capacitor between each VDD pin and ground, as close to the pin as possible.
6 VSS power_in Digital ground pin.
7 XRS bidirectional Device reset input and watchdog reset output with internal pull-up (open-drain output); driven low on power-up, brown-out and watchdog reset, and a 2.2 kΩ to 10 kΩ resistor is to be placed between XRS and VDDIO.
8 TRST input JTAG test reset input with internal pull-down; must be held low during normal device operation, and an external pull-up (typically 2.2 kΩ) is required on this pin.
9 ADCINA7 input ADC group A, channel 7 analog input.
10 ADCINA6/COMP3A/AIO6 bidirectional ADC group A, channel 6 analog input, also comparator 3A input and digital AIO6 (I/O); AIO pins have no internal pull-up.
11 ADCINA4/COMP2A/AIO4 bidirectional ADC group A, channel 4 analog input, also comparator 2A input and digital AIO4 (I/O); AIO pins have no internal pull-up.
12 ADCINA3 input ADC group A, channel 3 analog input.
13 ADCINA2/COMP1A/AIO2 bidirectional ADC group A, channel 2 analog input, also comparator 1A input and digital AIO2 (I/O); AIO pins have no internal pull-up.
14 ADCINA1 input ADC group A, channel 1 analog input.
15 ADCINA0/VREFHI input ADC group A, channel 0 analog input; this pin is shared with VREFHI (external ADC reference high, used only in external reference mode, must not exceed VDDA) and the two functions cannot be used at the same time.
16 VDDA power_in Analog power supply pin; place a 2.2 µF capacitor (typical) near this pin.
17 VSSA/VREFLO power_in Analog ground pin; ADC external reference low (VREFLO) is always tied to VSSA on the 64-pin PAG device.
18 ADCINB0 input ADC group B, channel 0 analog input.
19 ADCINB1 input ADC group B, channel 1 analog input.
20 ADCINB2/COMP1B/AIO10 bidirectional ADC group B, channel 2 analog input, also comparator 1B input and digital AIO10 (I/O); AIO pins have no internal pull-up.
21 ADCINB3 input ADC group B, channel 3 analog input.
22 ADCINB4/COMP2B/AIO12 bidirectional ADC group B, channel 4 analog input, also comparator 2B input and digital AIO12 (I/O); AIO pins have no internal pull-up.
23 ADCINB6/COMP3B/AIO14 bidirectional ADC group B, channel 6 analog input, also comparator 3B input and digital AIO14 (I/O); AIO pins have no internal pull-up.
24 ADCINB7 input ADC group B, channel 7 analog input.
25 GPIO31/CANTXA bidirectional General-purpose I/O 31 with alternate function eCAN-A transmit (O).
26 GPIO30/CANRXA bidirectional General-purpose I/O 30 with alternate function eCAN-A receive (I).
27 GPIO29/SCITXDA/SCLA/TZ3 bidirectional General-purpose I/O 29 with alternate functions SCI-A transmit (O), I2C-A clock (open-drain I/OD) and trip-zone input 3 (I).
28 VSS power_in Digital ground pin.
29 VDDIO power_in Digital I/O buffer and flash power pin; a decoupling capacitor is to be placed on each VDDIO pin, with the value set by the system voltage regulation solution (recommended 2.97 V to 3.63 V).
30 TEST2 unconnected Test pin reserved for TI; must be left unconnected.
31 GPIO9/EPWM5B/LINTXA/HRCAP1 bidirectional General-purpose I/O 9 with alternate functions ePWM5B output (O), LIN transmit A (O) and high-resolution capture 1 input (I).
32 GPIO28/SCIRXDA/SDAA/TZ2 bidirectional General-purpose I/O 28 with alternate functions SCI receive (I), I2C-A data (open-drain I/OD) and trip-zone input 2 (I).
33 GPIO18/SPICLKA/LINTXA/XCLKOUT bidirectional General-purpose I/O 18 with alternate functions SPI-A clock (I/O), LIN transmit (O) and XCLKOUT (O/Z, derived from SYSCLKOUT; reset default XCLKOUT = SYSCLKOUT/4).
34 GPIO17/SPISOMIA/TZ3 bidirectional General-purpose I/O 17 with alternate functions SPI-A slave output/master input (I/O) and trip-zone input 3 (I).
35 GPIO8/EPWM5A/ADCSOCAO bidirectional General-purpose I/O 8 with alternate functions ePWM5A output with HRPWM channel (O) and ADC start-of-conversion A output (O).
36 GPIO16/SPISIMOA/TZ2 bidirectional General-purpose I/O 16 with alternate functions SPI-A slave input/master output (I/O) and trip-zone input 2 (I).
37 GPIO12/TZ1/SCITXDA/SPISIMOB bidirectional General-purpose I/O 12 with alternate functions trip-zone input 1 (I), SCI-A transmit (O) and SPI-B slave input/master output (I/O).
38 GPIO7/EPWM4B/SCIRXDA bidirectional General-purpose I/O 7 with alternate functions ePWM4B output (O) and SCI-A receive (I).
39 GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO bidirectional General-purpose I/O 6 with alternate functions ePWM4A output with HRPWM channel (O), external ePWM sync input (I) and external ePWM sync output (O).
40 X2 output On-chip crystal oscillator output; a quartz crystal or ceramic resonator must be connected between X1 and X2, and X2 is to be left unconnected if not used.
41 X1 input 1.8 V on-chip crystal oscillator input; must not be driven with a 3.3 V level, must be connected to GND if unused, and the XCLKIN path must be disabled via CLKCTL when a crystal is used.
42 VSS power_in Digital ground pin.
43 VDD power_in CPU and logic digital power pin; when the internal VREG is used, place a 1.2 µF (minimum) capacitor between each VDD pin and ground.
44 GPIO19/XCLKIN/SPISTEA/LINRXA/ECAP1 bidirectional General-purpose I/O 19 with alternate functions external oscillator input XCLKIN (I), SPI-A slave transmit enable (I/O), LIN receive (I) and enhanced capture 1 (I/O); the XCLKIN path is not controlled by this pin's mux.
45 GPIO38/TCK/XCLKIN bidirectional General-purpose I/O 38 with JTAG test clock TCK (I, internal pull-up) and alternate external oscillator input XCLKIN (I); the default XCLKIN source selection is GPIO38.
46 GPIO37/TDO tri_state General-purpose I/O 37 with JTAG test data output TDO (O/Z, 8 mA drive), which is shifted out on the falling edge of TCK.
47 GPIO35/TDI bidirectional General-purpose I/O 35 with JTAG test data input TDI (I, internal pull-up), clocked on the rising edge of TCK.
48 GPIO36/TMS bidirectional General-purpose I/O 36 with JTAG test mode select TMS (I, internal pull-up), clocked on the rising edge of TCK.
49 GPIO11/EPWM6B/LINRXA/HRCAP2 bidirectional General-purpose I/O 11 with alternate functions ePWM6B output (O), LIN receive A (I) and high-resolution capture 2 input (I).
50 GPIO5/EPWM3B/SPISIMOA/ECAP1 bidirectional General-purpose I/O 5 with alternate functions ePWM3B output (O), SPI-A slave input/master output (I/O) and enhanced capture 1 (I/O).
51 GPIO4/EPWM3A bidirectional General-purpose I/O 4 with alternate function ePWM3A output with HRPWM channel (O).
52 GPIO10/EPWM6A/ADCSOCBO bidirectional General-purpose I/O 10 with alternate functions ePWM6A output with HRPWM channel (O) and ADC start-of-conversion B output (O).
53 GPIO3/EPWM2B/SPISOMIA/COMP2OUT bidirectional General-purpose I/O 3 with alternate functions ePWM2B output (O), SPI-A slave output/master input (I/O) and comparator 2 direct output (O).
54 GPIO2/EPWM2A bidirectional General-purpose I/O 2 with alternate function ePWM2A output with HRPWM channel (O).
55 GPIO1/EPWM1B/COMP1OUT bidirectional General-purpose I/O 1 with alternate functions ePWM1B output (O) and comparator 1 direct output (O).
56 GPIO0/EPWM1A bidirectional General-purpose I/O 0 with alternate function ePWM1A output with HRPWM channel (O).
57 VDDIO power_in Digital I/O buffer and flash power pin; a decoupling capacitor is to be placed on each VDDIO pin.
58 VSS power_in Digital ground pin.
59 VDD power_in CPU and logic digital power pin; when the internal VREG is used, place a 1.2 µF (minimum) capacitor between each VDD pin and ground.
60 VREGENZ input Internal regulator (VREG) enable with internal pull-down; connect directly to VSS to enable the internal 1.8 V VREG, or to VDDIO to disable it and use an external 1.8 V supply.
61 GPIO34/COMP2OUT/COMP3OUT bidirectional General-purpose I/O 34 with alternate functions comparator 2 direct output (O) and comparator 3 direct output (O); GPIO34 is a glitch-prone pin during power-up when the internal VREG is used.
62 GPIO20/EQEP1A/COMP1OUT bidirectional General-purpose I/O 20 with alternate functions eQEP1 input A (I) and comparator 1 direct output (O).
63 GPIO21/EQEP1B/COMP2OUT bidirectional General-purpose I/O 21 with alternate functions eQEP1 input B (I) and comparator 2 direct output (O).
64 GPIO24/ECAP1/SPISIMOB bidirectional General-purpose I/O 24 with alternate functions enhanced capture 1 I/O (I/O) and SPI-B slave input/master output (I/O).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

CAD (KiCad official)

  • Symbol: TMS320F28031PAGQ
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: tms320f28031pagq-etched.step / tms320f28031pagq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tms320f28031pagq.step / tms320f28031pagq.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (176 pp, sha256 cb9ccecfd6b5c484, retrieved 2026-10-08, 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-5-5 (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