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TMS320F28027FPTQ

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Texas Instruments Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TMS320F28027FPTQ

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

TMS320F28027FPTQ 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 GPIO29 (I/O/Z), alternate functions SCITXDA, SCLA (I2C clock, open-drain) and TZ3 trip-zone input; internal pullup can be enabled/disabled.
2 TRST input JTAG test reset with internal pulldown; active-high, must be held low during normal operation, external pullup required (2.2kΩ typically adequate).
3 XRS bidirectional Device reset input and watchdog reset output (open-drain with internal pullup); place a 2.2kΩ to 10kΩ resistor to VDDIO, and any filter capacitor to VSS must be 100nF or less.
4 ADCINA6/AIO6 bidirectional ADC group A channel 6 input, shared with digital AIO6 (no internal pullup).
5 ADCINA4/COMP2A/AIO4 bidirectional ADC group A channel 4 input, comparator 2A input (48-pin device only) and digital AIO4.
6 ADCINA7 input ADC group A channel 7 input.
7 ADCINA3 input ADC group A channel 3 input.
8 ADCINA1 input ADC group A channel 1 input.
9 ADCINA2/COMP1A/AIO2 bidirectional ADC group A channel 2 input, comparator 1A input and digital AIO2.
10 ADCINA0/VREFHI input ADC group A channel 0 input; also external ADC reference high (VREFHI), used only in external reference mode and not to exceed VDDA.
11 VDDA power_in Analog supply pin (2.97V to 3.63V recommended); connect a typical 2.2µF capacitor near this pin.
12 VSSA/VREFLO power_in Analog ground; also ADC external reference low (VREFLO), always tied to ground.
13 ADCINB1 input ADC group B channel 1 input.
14 ADCINB2/COMP1B/AIO10 bidirectional ADC group B channel 2 input, comparator 1B input and digital AIO10.
15 ADCINB3 input ADC group B channel 3 input.
16 ADCINB4/COMP2B/AIO12 bidirectional ADC group B channel 4 input, comparator 2B input (48-pin device only) and digital AIO12.
17 ADCINB6/AIO14 bidirectional ADC group B channel 6 input shared with digital AIO14.
18 ADCINB7 input ADC group B channel 7 input.
19 GPIO34/COMP2OUT bidirectional GPIO34 (I/O/Z) with comparator 2 direct output; also boot-mode select input, may glitch during power-up with on-chip VREG.
20 GPIO35/TDI bidirectional GPIO35 (I/O/Z) or JTAG TDI input with internal pullup, sampled on rising edge of TCK.
21 GPIO36/TMS bidirectional GPIO36 (I/O/Z) or JTAG TMS input with internal pullup, clocked into the TAP controller on rising edge of TCK.
22 GPIO37/TDO bidirectional GPIO37 (I/O/Z) or JTAG TDO output (8mA drive), shifted out on falling edge of TCK; also used for boot-mode selection.
23 GPIO38/XCLKIN/TCK bidirectional GPIO38 (I/O/Z), JTAG TCK input with internal pullup, or external oscillator input XCLKIN (default XCLKIN source).
24 GPIO18/SPICLKA/SCITXDA/XCLKOUT bidirectional GPIO18 (I/O/Z) with SPI-A clock, SCI-A transmit or XCLKOUT output derived from SYSCLKOUT (SYSCLKOUT/4 at reset).
25 GPIO19/XCLKIN/SPISTEA/SCIRXDA/ECAP1 bidirectional GPIO19 (I/O/Z) with XCLKIN external oscillator input, SPI-A transmit enable, SCI-A receive and eCAP1.
26 GPIO17/SPISOMIA/TZ3 bidirectional GPIO17 (I/O/Z) with SPI-A slave out/master in and TZ3 trip-zone input.
27 GPIO16/SPISIMOA/TZ2 bidirectional GPIO16 (I/O/Z) with SPI-A slave in/master out and TZ2 trip-zone input.
28 GPIO1/EPWM1B/COMP1OUT bidirectional GPIO1 (I/O/Z) with ePWM1 output B and comparator 1 direct output.
29 GPIO0/EPWM1A bidirectional GPIO0 (I/O/Z) with ePWM1 output A and HRPWM channel.
30 TEST unconnected Test pin reserved for TI; must be left unconnected.
31 GPIO32/SDAA/EPWMSYNCI/ADCSOCAO bidirectional GPIO32 (I/O/Z) with I2C data (open-drain), ePWM external sync input and ADC start-of-conversion A output.
32 VDD power_in CPU and logic digital supply; with internal VREG place a 1.2µF capacitor between each VDD pin and ground (1.71V to 1.995V when externally supplied).
33 VSS power_in Digital ground.
34 VREGENZ input Internal VREG enable with internal pulldown; tie to VSS to enable the internal 1.8V VREG, or to VDDIO to disable it and use an external 1.8V supply.
35 VDDIO power_in Digital I/O buffer and flash supply (2.97V to 3.63V recommended); place a decoupling capacitor on this pin.
36 GPIO33/SCLA/EPWMSYNCO/ADCSOCBO bidirectional GPIO33 (I/O/Z) with I2C clock (open-drain), ePWM external sync output and ADC start-of-conversion B output.
37 GPIO2/EPWM2A bidirectional GPIO2 (I/O/Z) with ePWM2 output A and HRPWM channel.
38 GPIO3/EPWM2B/COMP2OUT bidirectional GPIO3 (I/O/Z) with ePWM2 output B and comparator 2 direct output (48-pin device only).
39 GPIO4/EPWM3A bidirectional GPIO4 (I/O/Z) with ePWM3 output A and HRPWM channel.
40 GPIO5/EPWM3B/ECAP1 bidirectional GPIO5 (I/O/Z) with ePWM3 output B and eCAP1 input/output.
41 GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO bidirectional GPIO6 (I/O/Z) with ePWM4 output A, external ePWM sync input and sync output.
42 GPIO7/EPWM4B/SCIRXDA bidirectional GPIO7 (I/O/Z) with ePWM4 output B and SCI-A receive data.
43 VDD power_in CPU and logic digital supply; with internal VREG place a 1.2µF capacitor between each VDD pin and ground.
44 VSS power_in Digital ground.
45 X1 input 1.8V on-chip crystal oscillator input; connect crystal/resonator between X1 and X2, never apply 3.3V levels, connect to GND if unused.
46 X2 output On-chip crystal oscillator output; crystal/resonator connects between X1 and X2, leave unconnected if unused.
47 GPIO12/TZ1/SCITXDA bidirectional GPIO12 (I/O/Z) with TZ1 trip-zone input and SCI-A transmit data.
48 GPIO28/SCIRXDA/SDAA/TZ2 bidirectional GPIO28 (I/O/Z) with SCI receive data, I2C data (open-drain) and TZ2 trip-zone input.

Key specifications

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

CAD (KiCad official)

  • Symbol: TMS320F28027FPTQ
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: tms320f28027fptq-etched.step / tms320f28027fptq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tms320f28027fptq.step / tms320f28027fptq.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (147 pp, sha256 b90c388f4142c4b5, retrieved 2026-10-01, 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