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README

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TMS320F28054FPNT

Texas Instruments · Microcontrollers (MCU/MPU/SOC) · LQFP-80(12x12)

TMS320F28054FPNT from Texas Instruments, in a LQFP-80(12x12). 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 bidirectional General-purpose I/O 22 (default at reset), with alternate functions EQEP1S (I/O), SCITXDB (out); pullup state at reset is not stated for this pin.
2 GPIO32/SDAA bidirectional General-purpose I/O 32 with alternate functions SDAA (I2C data, open-drain), EPWMSYNCI (in) and EQEP1S (I/O).
3 GPIO33/SCLA bidirectional General-purpose I/O 33 with alternate functions SCLA (I2C clock, open-drain), EPWMSYNCO (out) and EQEP1I (I/O).
4 GPIO24/ECAP1 bidirectional General-purpose I/O 24 with internal pullup enabled by default; alternate functions ECAP1 (I/O) and EPWM7A (out).
5 GPIO42 bidirectional General-purpose I/O 42 with internal pullup enabled by default; alternate functions EPWM7B (out), SCITXDC (out) and CTRIPM1OUT (out).
6 VDD power_in CPU and logic digital power pin; when using the internal VREG, place one 1.2-µF capacitor between each VDD pin and ground.
7 VSS power_in Digital ground pin.
8 XRS bidirectional Device reset input and watchdog reset output (open-drain with internal pullup); a 2.2 kΩ to 10 kΩ resistor should be placed between XRS and VDDIO, and any capacitor to VSS should be 100 nF or smaller.
9 TRST input JTAG test reset with internal pulldown; must be maintained low during normal device operation and an external pulldown resistor is required (2.2 kΩ generally offers adequate protection).
10 ADCINA5 input ADC Group A, channel 5 input.
11 ADCINA4 input ADC Group A, channel 4 input.
12 ADCINA3 (op-amp) input ADC Group A, channel 3 input (labelled op-amp channel in the datasheet).
13 ADCINA2 input ADC Group A, channel 2 input.
14 ADCINA1 (op-amp) input ADC Group A, channel 1 input (labelled op-amp channel in the datasheet).
15 M1GND power_in Ground pin for amplifier channels A1, A3 and B1.
16 ADCINB2 input ADC Group B, channel 2 input.
17 ADCINB1 (op-amp) input ADC Group B, channel 1 input (labelled op-amp channel in the datasheet).
18 ADCINA0/VREFOUT input ADC Group A, channel 0 input; this pin is also the voltage reference output (VREFOUT) from the buffered DAC.
19 VREFHI input ADC external reference, used when in ADC external reference mode and as the reference for VREFOUT.
20 VDDA power_in Analog power pin; tie with a 2.2-µF capacitor (typical) close to the pin.
21 VSSA power_in Analog ground pin.
22 VREFLO power_in ADC low reference; always tied to ground.
23 ADCINA6 (op-amp) input ADC Group A, channel 6 input (labelled op-amp channel in the datasheet).
24 ADCINA7 input ADC Group A, channel 7 input.
25 ADCINB3 input ADC Group B, channel 3 input.
26 ADCINB4 (op-amp) input ADC Group B, channel 4 input (labelled op-amp channel in the datasheet).
27 M2GND power_in Ground pin for amplifier channels A6, B4 and B6.
28 ADCINB5 input ADC Group B, channel 5 input.
29 ADCINB6 (op-amp) input ADC Group B, channel 6 input (labelled op-amp channel in the datasheet).
30 ADCINB0 input ADC Group B, channel 0 input.
31 ADCINB7 (op-amp) input ADC Group B, channel 7 input (labelled op-amp channel in the datasheet).
32 PFCGND power_in Ground pin for amplifier channel B7.
33 GPIO27/SCITXDC bidirectional General-purpose I/O 27 with alternate function SCITXDC (SCI-C transmit data, out).
34 GPIO31/CANTXA bidirectional General-purpose I/O 31 with internal pullup enabled by default; alternate functions CANTXA (CAN transmit, out), SCITXDB (out) and EPWM7B (out).
35 GPIO30/CANRXA bidirectional General-purpose I/O 30 with internal pullup enabled by default; alternate functions CANRXA (CAN receive, in), SCIRXDB (in) and EPWM7A (out).
36 GPIO9/EPWM5B bidirectional General-purpose I/O 9 with alternate functions EPWM5B (out) and SCITXDB (out).
37 VSS power_in Digital ground pin.
38 VDDIO power_in Digital I/O buffer and flash memory power pin; single supply source when VREG is enabled, with a decoupling capacitor on each pin.
39 TEST2 bidirectional Test pin reserved for TI; must be left unconnected.
40 GPIO26 bidirectional General-purpose I/O 26 with alternate function SCIRXDC (SCI-C receive data, in).
41 GPIO29/SCITXDA/SCLA bidirectional General-purpose I/O 29 with alternate functions SCITXDA (out), SCLA (I2C clock, open-drain), TZ3 (in) and CTRIPPFCOUT (out).
42 GPIO28/SCIRXDA/SDAA bidirectional General-purpose I/O 28 with alternate functions SCIRXDA (SCI-A receive, in), SDAA (I2C data, open-drain) and TZ2 (in).
43 GPIO18 bidirectional General-purpose I/O 18 with alternate functions SPICLKA (I/O), SCITXDB (out) and XCLKOUT (output clock derived from SYSCLKOUT, reset value SYSCLKOUT/4); XCLKOUT reaches the pin only when the GPIO18 mux is set to XCLKOUT.
44 GPIO17/SPISOMIA bidirectional General-purpose I/O 17 with alternate functions SPISOMIA (I/O), EQEP1I (I/O), TZ3 (in) and CTRIPPFCOUT (out).
45 GPIO8/EPWM5A bidirectional General-purpose I/O 8 with alternate functions EPWM5A (out) and ADCSOCAO (out).
46 GPIO25 bidirectional General-purpose I/O 25; no peripheral alternate functions are listed for this pin.
47 GPIO16/SPISIMOA bidirectional General-purpose I/O 16 with alternate functions SPISIMOA (I/O), EQEP1S (I/O) and TZ2 (in).
48 GPIO12 bidirectional General-purpose I/O 12 with alternate functions TZ1 (trip zone input 1, in), CTRIPM1OUT (out) and SCITXDA (out).
49 GPIO7/EPWM4B bidirectional General-purpose I/O 7 with alternate functions EPWM4B (out) and SCIRXDA (in).
50 GPIO6/EPWM4A bidirectional General-purpose I/O 6 with alternate functions EPWM4A (out), EPWMSYNCI (in) and EPWMSYNCO (out).
51 X2 output On-chip crystal-oscillator output; a quartz crystal or ceramic resonator is connected across X1 and X2, and X2 must be left unconnected if not used.
52 X1 input On-chip 1.8-V crystal-oscillator input; a crystal or resonator connects across X1 and X2, and the pin must be tied to GND if the oscillator is not used.
53 VSS power_in Digital ground pin.
54 VDD power_in CPU and logic digital power pin; when using the internal VREG, place one 1.2-µF capacitor between each VDD pin and ground.
55 GPIO19/XCLKIN bidirectional General-purpose I/O 19 with alternate functions XCLKIN (external oscillator input, 3.3 V oscillator), SPISTEA (I/O), SCIRXDB (in) and ECAP1 (I/O); may glitch during power-up when the on-chip VREG is used.
56 GPIO39/SCIRXDC bidirectional General-purpose I/O 39 with alternate functions SCIRXDC (SCI-C receive, in) and CTRIPPFCOUT (out).
57 GPIO38/TCK/XCLKIN bidirectional General-purpose I/O 38 with internal pullup on the JTAG function; default XCLKIN selection and TCK (JTAG test clock with internal pullup); may glitch during power-up when the on-chip VREG is used.
58 GPIO37/TDO bidirectional General-purpose I/O 37 and JTAG scan data output TDO (8 mA drive), shifted out on the falling edge of TCK; may glitch during power-up when the on-chip VREG is used.
59 GPIO35/TDI bidirectional General-purpose I/O 35 and JTAG test data input TDI with internal pullup, clocked in on the rising edge of TCK; may glitch during power-up when the on-chip VREG is used.
60 GPIO36/TMS bidirectional General-purpose I/O 36 and JTAG test-mode select TMS with internal pullup, clocked into the TAP controller on the rising edge of TCK; may glitch during power-up when the on-chip VREG is used.
61 GPIO11/EPWM6B bidirectional General-purpose I/O 11 with alternate functions EPWM6B (out), SCIRXDB (in) and reserved.
62 GPIO5/EPWM3B bidirectional General-purpose I/O 5 with alternate functions EPWM3B (out), SPISIMOA (I/O) and ECAP1 (I/O).
63 GPIO4/EPWM3A bidirectional General-purpose I/O 4 with alternate function EPWM3A (out).
64 GPIO40/EPWM7A bidirectional General-purpose I/O 40 with internal pullup enabled by default; alternate function EPWM7A (out).
65 GPIO10/EPWM6A bidirectional General-purpose I/O 10 with alternate functions EPWM6A (out) and ADCSOCBO (out).
66 GPIO3/EPWM2B bidirectional General-purpose I/O 3 with alternate functions EPWM2B (out) and SPISOMIA (I/O).
67 GPIO2/EPWM2A bidirectional General-purpose I/O 2 with alternate function EPWM2A (out).
68 GPIO1/EPWM1B bidirectional General-purpose I/O 1 with alternate functions EPWM1B (out) and CTRIPM1OUT (out).
69 GPIO0/EPWM1A bidirectional General-purpose I/O 0 with alternate function EPWM1A (out).
70 VDDIO power_in Digital I/O buffer and flash memory power pin; single supply source when VREG is enabled, with a decoupling capacitor on each pin.
71 VREGENZ input Internal voltage regulator enable with internal pulldown; tie to VSS to enable the internal 1.8-V VREG, or tie to VDDIO to disable it and use an external 1.8-V supply.
72 VSS power_in Digital ground pin.
73 VDD power_in CPU and logic digital power pin; when using the internal VREG, place one 1.2-µF capacitor between each VDD pin and ground.
74 GPIO34/CTRIPPFCOUT bidirectional General-purpose I/O 34 with alternate function CTRIPPFCOUT (out); may glitch during power-up when the on-chip VREG is used.
75 GPIO15/TZ1 bidirectional General-purpose I/O 15 with alternate functions TZ1 (in), CTRIPM1OUT (out) and SCIRXDB (in).
76 GPIO13/TZ2 bidirectional General-purpose I/O 13 with alternate function TZ2 (trip zone input 2, in).
77 GPIO14/TZ3 bidirectional General-purpose I/O 14 with alternate functions TZ3 (in), CTRIPPFCOUT (out) and SCITXDB (out).
78 GPIO20/EQEP1A bidirectional General-purpose I/O 20 with internal pullup enabled by default; alternate functions EQEP1A (in), EPWM7A (out) and CTRIPM1OUT (out).
79 GPIO21/EQEP1B bidirectional General-purpose I/O 21 with internal pullup enabled by default; alternate functions EQEP1B (in) and EPWM7B (out).
80 GPIO23/EQEP1I bidirectional General-purpose I/O 23 with alternate functions EQEP1I (I/O) and SCIRXDB (in).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package LQFP-80(12x12)
Category Embedded Processors & Controllers
Pins 80

CAD (KiCad official)

  • Symbol: TMS320F28054FPNT
  • Footprint: Package_QFP:LQFP-80_12x12mm_P0.5mm
  • 3D model: LQFP-80(12x12) (KiCad packages3D, STEP)
  • 3D model files: tms320f28054fpnt-etched.step / tms320f28054fpnt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tms320f28054fpnt.step / tms320f28054fpnt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (159 pp, sha256 aaaaedb6c548633c, 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