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README

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TMS320F28033PAGS

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

TMS320F28033PAGS 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 GPIO22 with internal pull-up enabled after reset; alternates are EQEP1 strobe (I/O) and LIN transmit (O), and inputs are not 5 V tolerant.
2 GPIO32/SDAA/EPWMSYNCI/ADCSOCAO bidirectional GPIO32 with internal pull-up; alternates are I2C-A data (open-drain), ePWM sync input, and ADC SOC-A output; inputs are not 5 V tolerant.
3 GPIO33/SCLA/EPWMSYNCO/ADCSOCBO bidirectional GPIO33 with internal pull-up; alternates are I2C-A clock (open-drain), ePWM sync output, and ADC SOC-B output; inputs are not 5 V tolerant.
4 GPIO23/EQEP1I/LINRXA bidirectional GPIO23 with internal pull-up; alternates are EQEP1 index (I/O) and LIN receive (I); inputs are not 5 V tolerant.
5 VDD power_in CPU and logic digital supply; when the internal VREG is used, a 1.2 µF (minimum) capacitor is required on each VDD pin, and when supplied externally the range is 1.71 V to 1.995 V (1.8 V nominal).
6 VSS power_in Digital ground pin.
7 XRS bidirectional Device reset input and watchdog reset output, an open-drain pin with internal pull-up; a 2.2 kΩ to 10 kΩ resistor to VDDIO is required and any noise filter capacitor to VSS must be 100 nF or less.
8 TRST input JTAG test reset with internal pull-down; must be held low during normal operation and typically needs an external pull-up of about 2.2 kΩ, sized to the debugger pod.
9 ADCINA7 passive ADC group A channel 7 analog input, 0 V to 3.3 V full scale with the internal reference (or VREFHI/VREFLO with an external reference).
10 ADCINA6/COMP3A/AIO6 passive ADC group A channel 6 analog input, also comparator 3A input and digital AIO6; AIO pins have no internal pull-up.
11 ADCINA4/COMP2A/AIO4 passive ADC group A channel 4 analog input, also comparator 2A input and digital AIO4; AIO pins have no internal pull-up.
12 ADCINA3 passive ADC group A channel 3 analog input.
13 ADCINA2/COMP1A/AIO2 passive ADC group A channel 2 analog input, also comparator 1A input and digital AIO2; AIO pins have no internal pull-up.
14 ADCINA1 passive ADC group A channel 1 analog input.
15 ADCINA0/VREFHI passive ADC group A channel 0 input that shares this pin with the external ADC reference high VREFHI (external reference mode only), so the two cannot be used together and VREFHI must not exceed VDDA.
16 VDDA power_in Analog supply, 2.97 V to 3.63 V (3.3 V nominal), with about a 2.2 µF capacitor placed near this pin.
17 VSSA/VREFLO power_in Analog ground; on the 64-pin PAG package the ADC low reference VREFLO is always connected to VSSA.
18 ADCINB0 passive ADC group B channel 0 analog input.
19 ADCINB1 passive ADC group B channel 1 analog input.
20 ADCINB2/COMP1B/AIO10 passive ADC group B channel 2 analog input, also comparator 1B input and digital AIO10; AIO pins have no internal pull-up.
21 ADCINB3 passive ADC group B channel 3 analog input.
22 ADCINB4/COMP2B/AIO12 passive ADC group B channel 4 analog input, also comparator 2B input and digital AIO12; AIO pins have no internal pull-up.
23 ADCINB6/COMP3B/AIO14 passive ADC group B channel 6 analog input, also comparator 3B input and digital AIO14; AIO pins have no internal pull-up.
24 ADCINB7 passive ADC group B channel 7 analog input.
25 GPIO31/CANTXA bidirectional GPIO31 with internal pull-up; alternate function is eCAN transmit output CANTXA.
26 GPIO30/CANRXA bidirectional GPIO30 with internal pull-up; alternate function is eCAN receive input CANRXA.
27 GPIO29/SCITXDA/SCLA/TZ3 bidirectional GPIO29 with internal pull-up; alternates are SCI-A transmit (O), I2C-A clock (open-drain), and trip-zone input TZ3.
28 VSS power_in Digital ground pin.
29 VDDIO power_in Digital I/O buffer and flash supply, 2.97 V to 3.63 V (3.3 V nominal); a decoupling capacitor is required on this pin.
30 TEST2 unconnected Reserved for TI testing; must remain unconnected.
31 GPIO9/EPWM5B/LINTXA/HRCAP1 bidirectional GPIO9 with internal pull-up; alternates are ePWM5B output, LIN transmit (O), and high-resolution capture 1 input.
32 GPIO28/SCIRXDA/SDAA/TZ2 bidirectional GPIO28 with internal pull-up; alternates are SCI-A receive (I), I2C-A data (open-drain), and trip-zone input TZ2.
33 GPIO18/SPICLKA/LINTXA/XCLKOUT bidirectional GPIO18 with internal pull-up; alternates are SPI-A clock (I/O), LIN transmit (O), and XCLKOUT, which defaults to SYSCLKOUT/4 at reset.
34 GPIO17/SPISOMIA/TZ3 bidirectional GPIO17 with internal pull-up; alternates are SPI-A slave-out/master-in (I/O) and trip-zone input TZ3.
35 GPIO8/EPWM5A/ADCSOCAO bidirectional GPIO8 with internal pull-up; alternates are ePWM5A output with HRPWM channel and ADC SOC-A output.
36 GPIO16/SPISIMOA/TZ2 bidirectional GPIO16 with internal pull-up; alternates are SPI-A slave-in/master-out (I/O) and trip-zone input TZ2.
37 GPIO12/TZ1/SCITXDA bidirectional GPIO12 with internal pull-up; alternates are trip-zone input TZ1 and SCI-A transmit (O); SPI-B on this pin is not available in the PAG package.
38 GPIO7/EPWM4B/SCIRXDA bidirectional GPIO7 with internal pull-up; alternates are ePWM4B output and SCI-A receive input.
39 GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO bidirectional GPIO6 with internal pull-up; alternates are ePWM4A output with HRPWM channel, external ePWM sync input, and external ePWM sync output.
40 X2 output On-chip crystal oscillator output; a crystal or ceramic resonator must be connected between X1 and X2, and X2 must be left unconnected if unused.
41 X1 input 1.8 V on-chip crystal oscillator input that must not be driven with a 3.3 V level; tie to GND if the oscillator is unused.
42 VSS power_in Digital ground pin.
43 VDD power_in CPU and logic digital supply; when the internal VREG is used, a 1.2 µF (minimum) capacitor is required on each VDD pin.
44 GPIO19/XCLKIN/SPISTEA/LINRXA/ECAP1 bidirectional GPIO19 with internal pull-up; alternates are external oscillator input XCLKIN, SPI-A slave transmit enable (I/O), LIN receive (I), and ECAP1 (I/O); the XCLKIN path is not controlled by this pin's mux.
45 GPIO38/TCK/XCLKIN bidirectional GPIO38 with internal pull-up; alternates are JTAG test clock TCK and external oscillator input XCLKIN, and TCK is needed for JTAG debug so an external clock on this pin may need a disable path.
46 GPIO37/TDO tri_state GPIO37 with JTAG test data output TDO (O/Z), providing 8 mA drive, with data shifted out on the falling edge of TCK.
47 GPIO35/TDI bidirectional GPIO35 with internal pull-up; JTAG test data input TDI, latched on the rising edge of TCK.
48 GPIO36/TMS bidirectional GPIO36 with internal pull-up; JTAG test mode select TMS, latched by the TAP controller on the rising edge of TCK.
49 GPIO11/EPWM6B/LINRXA/HRCAP2 bidirectional GPIO11 with internal pull-up; alternates are ePWM6B output, LIN receive (I), and high-resolution capture 2 input.
50 GPIO5/EPWM3B/SPISIMOA/ECAP1 bidirectional GPIO5 with internal pull-up; alternates are ePWM3B output, SPI-A slave-in/master-out (I/O), and ECAP1 (I/O).
51 GPIO4/EPWM3A bidirectional GPIO4 with internal pull-up; alternate function is ePWM3A output with HRPWM channel.
52 GPIO10/EPWM6A/ADCSOCBO bidirectional GPIO10 with internal pull-up; alternates are ePWM6A output with HRPWM channel and ADC SOC-B output.
53 GPIO3/EPWM2B/SPISOMIA/COMP2OUT bidirectional GPIO3 with internal pull-up; alternates are ePWM2B output, SPI-A slave-out/master-in (I/O), and comparator 2 direct output.
54 GPIO2/EPWM2A bidirectional GPIO2 with internal pull-up; alternate function is ePWM2A output with HRPWM channel.
55 GPIO1/EPWM1B/COMP1OUT bidirectional GPIO1 with internal pull-up; alternates are ePWM1B output and comparator 1 direct output.
56 GPIO0/EPWM1A bidirectional GPIO0 with internal pull-up; alternate function is ePWM1A output with HRPWM channel.
57 VDDIO power_in Digital I/O buffer and flash supply, 2.97 V to 3.63 V (3.3 V nominal); a decoupling capacitor is required on this pin.
58 VSS power_in Digital ground pin.
59 VDD power_in CPU and logic digital supply; when the internal VREG is used, a 1.2 µF (minimum) capacitor is required on each VDD pin.
60 VREGENZ input Internal regulator enable with internal pull-down: tie to VSS to enable the 1.8 V VREG, or to VDDIO to disable it and supply 1.8 V externally.
61 GPIO34/COMP2OUT/COMP3OUT bidirectional GPIO34 with internal pull-up; alternates are comparator 2 direct output and comparator 3 direct output; GPIO34 can glitch during power-up when VREG is used.
62 GPIO20/EQEP1A/COMP1OUT bidirectional GPIO20 with internal pull-up; alternates are EQEP1 input A (I) and comparator 1 direct output.
63 GPIO21/EQEP1B/COMP2OUT bidirectional GPIO21 with internal pull-up; alternates are EQEP1 input B (I) and comparator 2 direct output.
64 GPIO24/ECAP1 bidirectional GPIO24 with internal pull-up; alternate function is enhanced capture 1 (I/O); SPI-B on this pin is not available in the PAG package.

Key specifications

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

CAD (KiCad official)

  • Symbol: TMS320F28033PAGS
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: tms320f28033pags-etched.step / tms320f28033pags-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tms320f28033pags.step / tms320f28033pags.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