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Initial commit: component/tms320f28034rshs

Ray ·ee5c2d8039 ·18h ago
2 files changed +548
README.mdadded+94
@@ -0,0 +1,94 @@+# TMS320F28034RSHS++**Texas Instruments** · Microcontrollers (MCU/MPU/SOC) · VQFN-56-EP(7x7)++TMS320F28034RSHS from Texas Instruments, in a VQFN-56-EP(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 | GPIO22/EQEP1S/LINTXA | bidirectional | GPIO22 (I/O/Z, default at reset) with eQEP1 strobe or LIN transmit A alternate functions. |+| 2 | GPIO23/EQEP1I/LINRXA | bidirectional | GPIO23 (I/O/Z, default at reset) with eQEP1 index or LIN receive A alternate functions. |+| 3 | VDD | power_in | CPU and logic digital supply; with the internal VREG place a 1.2uF capacitor from each VDD pin to ground. |+| 4 | VSS | power_in | Digital ground. |+| 5 | XRS | bidirectional | Device reset input and watchdog reset output (open-drain with internal pullup, driven low by POR/BOR); use a 2.2k-10k resistor to VDDIO and at most 100nF to VSS. |+| 6 | TRST | input | JTAG test reset with internal pulldown; active high, must be held low in normal operation and needs an external pulldown per the datasheet (typically 2.2k). |+| 7 | ADCINA7 | input | ADC group A channel 7 input. |+| 8 | ADCINA6/COMP3A/AIO6 | bidirectional | ADC group A channel 6 input, comparator 3A input, or digital AIO6. |+| 9 | ADCINA4/COMP2A/AIO4 | bidirectional | ADC group A channel 4 input, comparator 2A input, or digital AIO4. |+| 10 | ADCINA3 | input | ADC group A channel 3 input. |+| 11 | ADCINA2/COMP1A/AIO2 | bidirectional | ADC group A channel 2 input, comparator 1A input, or digital AIO2. |+| 12 | ADCINA1 | input | ADC group A channel 1 input. |+| 13 | ADCINA0/VREFHI | input | ADC group A channel 0 input or external reference high (VREFHI); the two share this pin and cannot be used simultaneously, and VREFHI must not exceed VDDA. |+| 14 | VDDA | power_in | Analog supply; connect a 2.2uF (typical) capacitor near this pin; recommended 2.97V to 3.63V. |+| 15 | VSSA/VREFLO | power_in | Analog ground; VREFLO is always connected to VSSA on the RSH package. |+| 16 | ADCINB1 | input | ADC group B channel 1 input. |+| 17 | ADCINB2/COMP1B/AIO10 | bidirectional | ADC group B channel 2 input, comparator 1B input, or digital AIO10. |+| 18 | ADCINB3 | input | ADC group B channel 3 input. |+| 19 | ADCINB4/COMP2B/AIO12 | bidirectional | ADC group B channel 4 input, comparator 2B input, or digital AIO12. |+| 20 | ADCINB6/COMP3B/AIO14 | bidirectional | ADC group B channel 6 input, comparator 3B input, or digital AIO14. |+| 21 | ADCINB7 | input | ADC group B channel 7 input. |+| 22 | GPIO31/CANTXA | bidirectional | GPIO31 (I/O/Z, default at reset) with CAN transmit alternate function. |+| 23 | GPIO30/CANRXA | bidirectional | GPIO30 (I/O/Z, default at reset) with CAN receive alternate function. |+| 24 | GPIO29/SCITXDA/SCLA/TZ3 | bidirectional | GPIO29 (I/O/Z, default at reset) with SCI transmit, I2C clock (open-drain) or trip zone 3 alternates; 8mA group 2 pin. |+| 25 | VSS | power_in | Digital ground. |+| 26 | VDDIO | power_in | Digital I/O buffer and flash supply; recommended 2.97V to 3.63V; place a decoupling capacitor on each pin. |+| 27 | TEST2 | unconnected | Test pin reserved for TI; must be left unconnected. |+| 28 | GPIO28/SCIRXDA/SDAA/TZ2 | bidirectional | GPIO28 (I/O/Z, default at reset) with SCI receive, I2C data (open-drain) or trip zone 2 alternates; 8mA group 2 pin. |+| 29 | GPIO18/SPICLKA/LINTXA/XCLKOUT | bidirectional | GPIO18 (I/O/Z, default at reset) with SPI-A clock, LIN transmit or XCLKOUT (SYSCLKOUT, /2 or /4) alternates. |+| 30 | GPIO17/SPISOMIA/TZ3 | bidirectional | GPIO17 (I/O/Z, default at reset) with SPI-A SOMI or trip zone 3 alternates. |+| 31 | GPIO16/SPISIMOA/TZ2 | bidirectional | GPIO16 (I/O/Z, default at reset) with SPI-A SIMO or trip zone 2 alternates. |+| 32 | GPIO12/TZ1/SCITXDA | bidirectional | GPIO12 (I/O/Z, default at reset) with trip zone 1 or SCI transmit alternates (SPI-B function is PN only). |+| 33 | GPIO7/EPWM4B/SCIRXDA | bidirectional | GPIO7 (I/O/Z, default at reset) with ePWM4 output B or SCI receive alternates. |+| 34 | GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO | bidirectional | GPIO6 (I/O/Z, default at reset) with ePWM4 output A/HRPWM, external sync in or sync out alternates. |+| 35 | X2 | output | On-chip crystal oscillator output; connect crystal/resonator between X1 and X2, leave unconnected if unused. |+| 36 | X1 | input | 1.8V on-chip crystal oscillator input; connect to GND if unused, never apply 3.3V levels. |+| 37 | VSS | power_in | Digital ground. |+| 38 | VDD | power_in | CPU and logic digital supply; with the internal VREG place a 1.2uF capacitor from each VDD pin to ground. |+| 39 | GPIO19/XCLKIN/SPISTEA/LINRXA/ECAP1 | bidirectional | GPIO19 (I/O/Z, default at reset) with external oscillator input path, SPI-A STE, LIN receive or eCAP1 alternates; glitches during power-up with on-chip VREG. |+| 40 | GPIO38/TCK/XCLKIN | bidirectional | GPIO38 (I/O/Z) used as JTAG TCK input with internal pullup, or external oscillator input (default XCLKIN source). |+| 41 | GPIO37/TDO | bidirectional | GPIO37 (I/O/Z) used as JTAG TDO scan output (8mA drive); also boot mode select pin. |+| 42 | GPIO35/TDI | bidirectional | GPIO35 (I/O/Z) used as JTAG TDI input with internal pullup. |+| 43 | GPIO36/TMS | bidirectional | GPIO36 (I/O/Z) used as JTAG TMS input with internal pullup. |+| 44 | GPIO5/EPWM3B/SPISIMOA/ECAP1 | bidirectional | GPIO5 (I/O/Z, default at reset) with ePWM3 output B, SPI-A SIMO or eCAP1 alternates. |+| 45 | GPIO4/EPWM3A | bidirectional | GPIO4 (I/O/Z, default at reset) with ePWM3 output A/HRPWM alternate. |+| 46 | GPIO3/EPWM2B/SPISOMIA/COMP2OUT | bidirectional | GPIO3 (I/O/Z, default at reset) with ePWM2 output B, SPI-A SOMI or comparator 2 output alternates. |+| 47 | GPIO2/EPWM2A | bidirectional | GPIO2 (I/O/Z, default at reset) with ePWM2 output A/HRPWM alternate. |+| 48 | GPIO1/EPWM1B/COMP1OUT | bidirectional | GPIO1 (I/O/Z, default at reset) with ePWM1 output B or comparator 1 output alternates. |+| 49 | GPIO0/EPWM1A | bidirectional | GPIO0 (I/O/Z, default at reset) with ePWM1 output A/HRPWM alternate. |+| 50 | VDDIO | power_in | Digital I/O buffer and flash supply; recommended 2.97V to 3.63V; place a decoupling capacitor on each pin. |+| 51 | VSS | power_in | Digital ground. |+| 52 | VDD | power_in | CPU and logic digital supply; with the internal VREG place a 1.2uF capacitor from each VDD pin to ground. |+| 53 | VREGENZ | input | Internal VREG enable with internal pulldown; tie to VSS to enable the 1.8V VREG or to VDDIO to disable it and use an external 1.8V supply. |+| 54 | GPIO34/COMP2OUT/COMP3OUT | bidirectional | GPIO34 (I/O/Z, default at reset) with comparator 2 or 3 output alternates; also boot mode select pin. |+| 55 | GPIO20/EQEP1A/COMP1OUT | bidirectional | GPIO20 (I/O/Z, default at reset) with eQEP1 input A or comparator 1 output alternates. |+| 56 | GPIO21/EQEP1B/COMP2OUT | bidirectional | GPIO21 (I/O/Z, default at reset) with eQEP1 input B or comparator 2 output alternates. |+| 57 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-56-EP(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 57 |++## CAD (KiCad official)++- Symbol: `TMS320F28034RSHS`+- Footprint: `Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP4x4mm`+- 3D model: VQFN-56-EP(7x7) (KiCad packages3D, STEP)+- 3D model files: `tms320f28034rshs-etched.step` / `tms320f28034rshs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tms320f28034rshs.step` / `tms320f28034rshs.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tms320f28033) (176 pp, sha256 `cb9ccecfd6b5c484`, retrieved 2026-10-06, 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](docs/tms320f28034rshs-datasheet.pdf)
page.jsonadded+454
@@ -0,0 +1,454 @@+{+  "slug": "tms320f28034rshs",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments Microcontrollers (MCU/MPU/SOC), VQFN-56-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "embedded processors & controllers",+    "tms320f28034rshs",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "tms320f28034rshs.kicad_sym",+    "tms320f28034rshs.kicad_mod",+    "tms320f28034rshs.glb",+    "tms320f28034rshs.step",+    "tms320f28034rshs.lbr",+    "docs/hero.png",+    "docs/tms320f28034rshs-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "tms320f28034rshs-hero.glb",+    "tms320f28034rshs-hero.overlay.json"+  ],+  "component": {+    "mpn": "TMS320F28034RSHS",+    "manufacturer": "Texas Instruments",+    "package": "VQFN-56-EP(7x7)",+    "pin_count": 57,+    "category": "Embedded Processors & Controllers",+    "subcategory": "Microcontrollers (MCU/MPU/SOC)",+    "datasheet": "https://www.ti.com/cn/lit/gpn/tms320f28033",+    "parts": {+      "symbol": "tms320f28034rshs.kicad_sym",+      "footprint": "tms320f28034rshs.kicad_mod",+      "model_3d": "tms320f28034rshs-hero.glb",+      "model_3d_plain": "tms320f28034rshs.glb",+      "model_3d_step": "tms320f28034rshs-etched.step",+      "model_3d_step_plain": "tms320f28034rshs.step",+      "lbr": "tms320f28034rshs.lbr"+    },+    "distributor_links": {+      "lcsc": 1343066,+      "digikey": "TMS320F28034RSHS-ND",+      "mouser": "595-TMS320F28034RSHS"+    },+    "distributor_check": {+      "checked_at": "2026-10-06T16:52:08Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": "TMS320F28034RSHS-ND",+        "status": "found"+      },+      "mouser": {+        "pn": "595-TMS320F28034RSHS",+        "status": "found"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "GPIO22/EQEP1S/LINTXA",+        "type": "bidirectional",+        "description": "GPIO22 (I/O/Z, default at reset) with eQEP1 strobe or LIN transmit A alternate functions."+      },+      {+        "number": "2",+        "name": "GPIO23/EQEP1I/LINRXA",+        "type": "bidirectional",+        "description": "GPIO23 (I/O/Z, default at reset) with eQEP1 index or LIN receive A alternate functions."+      },+      {+        "number": "3",+        "name": "VDD",+        "type": "power_in",+        "description": "CPU and logic digital supply; with the internal VREG place a 1.2uF capacitor from each VDD pin to ground."+      },+      {+        "number": "4",+        "name": "VSS",+        "type": "power_in",+        "description": "Digital ground."+      },+      {+        "number": "5",+        "name": "XRS",+        "type": "bidirectional",+        "description": "Device reset input and watchdog reset output (open-drain with internal pullup, driven low by POR/BOR); use a 2.2k-10k resistor to VDDIO and at most 100nF to VSS."+      },+      {+        "number": "6",+        "name": "TRST",+        "type": "input",+        "description": "JTAG test reset with internal pulldown; active high, must be held low in normal operation and needs an external pulldown per the datasheet (typically 2.2k)."+      },+      {+        "number": "7",+        "name": "ADCINA7",+        "type": "input",+        "description": "ADC group A channel 7 input."+      },+      {+        "number": "8",+        "name": "ADCINA6/COMP3A/AIO6",+        "type": "bidirectional",+        "description": "ADC group A channel 6 input, comparator 3A input, or digital AIO6."+      },+      {+        "number": "9",+        "name": "ADCINA4/COMP2A/AIO4",+        "type": "bidirectional",+        "description": "ADC group A channel 4 input, comparator 2A input, or digital AIO4."+      },+      {+        "number": "10",+        "name": "ADCINA3",+        "type": "input",+        "description": "ADC group A channel 3 input."+      },+      {+        "number": "11",+        "name": "ADCINA2/COMP1A/AIO2",+        "type": "bidirectional",+        "description": "ADC group A channel 2 input, comparator 1A input, or digital AIO2."+      },+      {+        "number": "12",+        "name": "ADCINA1",+        "type": "input",+        "description": "ADC group A channel 1 input."+      },+      {+        "number": "13",+        "name": "ADCINA0/VREFHI",+        "type": "input",+        "description": "ADC group A channel 0 input or external reference high (VREFHI); the two share this pin and cannot be used simultaneously, and VREFHI must not exceed VDDA."+      },+      {+        "number": "14",+        "name": "VDDA",+        "type": "power_in",+        "description": "Analog supply; connect a 2.2uF (typical) capacitor near this pin; recommended 2.97V to 3.63V."+      },+      {+        "number": "15",+        "name": "VSSA/VREFLO",+        "type": "power_in",+        "description": "Analog ground; VREFLO is always connected to VSSA on the RSH package."+      },+      {+        "number": "16",+        "name": "ADCINB1",+        "type": "input",+        "description": "ADC group B channel 1 input."+      },+      {+        "number": "17",+        "name": "ADCINB2/COMP1B/AIO10",+        "type": "bidirectional",+        "description": "ADC group B channel 2 input, comparator 1B input, or digital AIO10."+      },+      {+        "number": "18",+        "name": "ADCINB3",+        "type": "input",+        "description": "ADC group B channel 3 input."+      },+      {+        "number": "19",+        "name": "ADCINB4/COMP2B/AIO12",+        "type": "bidirectional",+        "description": "ADC group B channel 4 input, comparator 2B input, or digital AIO12."+      },+      {+        "number": "20",+        "name": "ADCINB6/COMP3B/AIO14",+        "type": "bidirectional",+        "description": "ADC group B channel 6 input, comparator 3B input, or digital AIO14."+      },+      {+        "number": "21",+        "name": "ADCINB7",+        "type": "input",+        "description": "ADC group B channel 7 input."+      },+      {+        "number": "22",+        "name": "GPIO31/CANTXA",+        "type": "bidirectional",+        "description": "GPIO31 (I/O/Z, default at reset) with CAN transmit alternate function."+      },+      {+        "number": "23",+        "name": "GPIO30/CANRXA",+        "type": "bidirectional",+        "description": "GPIO30 (I/O/Z, default at reset) with CAN receive alternate function."+      },+      {+        "number": "24",+        "name": "GPIO29/SCITXDA/SCLA/TZ3",+        "type": "bidirectional",+        "description": "GPIO29 (I/O/Z, default at reset) with SCI transmit, I2C clock (open-drain) or trip zone 3 alternates; 8mA group 2 pin."+      },+      {+        "number": "25",+        "name": "VSS",+        "type": "power_in",+        "description": "Digital ground."+      },+      {+        "number": "26",+        "name": "VDDIO",+        "type": "power_in",+        "description": "Digital I/O buffer and flash supply; recommended 2.97V to 3.63V; place a decoupling capacitor on each pin."+      },+      {+        "number": "27",+        "name": "TEST2",+        "type": "unconnected",+        "description": "Test pin reserved for TI; must be left unconnected."+      },+      {+        "number": "28",+        "name": "GPIO28/SCIRXDA/SDAA/TZ2",+        "type": "bidirectional",+        "description": "GPIO28 (I/O/Z, default at reset) with SCI receive, I2C data (open-drain) or trip zone 2 alternates; 8mA group 2 pin."+      },+      {+        "number": "29",+        "name": "GPIO18/SPICLKA/LINTXA/XCLKOUT",+        "type": "bidirectional",+        "description": "GPIO18 (I/O/Z, default at reset) with SPI-A clock, LIN transmit or XCLKOUT (SYSCLKOUT, /2 or /4) alternates."+      },+      {+        "number": "30",+        "name": "GPIO17/SPISOMIA/TZ3",+        "type": "bidirectional",+        "description": "GPIO17 (I/O/Z, default at reset) with SPI-A SOMI or trip zone 3 alternates."+      },+      {+        "number": "31",+        "name": "GPIO16/SPISIMOA/TZ2",+        "type": "bidirectional",+        "description": "GPIO16 (I/O/Z, default at reset) with SPI-A SIMO or trip zone 2 alternates."+      },+      {+        "number": "32",+        "name": "GPIO12/TZ1/SCITXDA",+        "type": "bidirectional",+        "description": "GPIO12 (I/O/Z, default at reset) with trip zone 1 or SCI transmit alternates (SPI-B function is PN only)."+      },+      {+        "number": "33",+        "name": "GPIO7/EPWM4B/SCIRXDA",+        "type": "bidirectional",+        "description": "GPIO7 (I/O/Z, default at reset) with ePWM4 output B or SCI receive alternates."+      },+      {+        "number": "34",+        "name": "GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO",+        "type": "bidirectional",+        "description": "GPIO6 (I/O/Z, default at reset) with ePWM4 output A/HRPWM, external sync in or sync out alternates."+      },+      {+        "number": "35",+        "name": "X2",+        "type": "output",+        "description": "On-chip crystal oscillator output; connect crystal/resonator between X1 and X2, leave unconnected if unused."+      },+      {+        "number": "36",+        "name": "X1",+        "type": "input",+        "description": "1.8V on-chip crystal oscillator input; connect to GND if unused, never apply 3.3V levels."+      },+      {+        "number": "37",+        "name": "VSS",+        "type": "power_in",+        "description": "Digital ground."+      },+      {+        "number": "38",+        "name": "VDD",+        "type": "power_in",+        "description": "CPU and logic digital supply; with the internal VREG place a 1.2uF capacitor from each VDD pin to ground."+      },+      {+        "number": "39",+        "name": "GPIO19/XCLKIN/SPISTEA/LINRXA/ECAP1",+        "type": "bidirectional",+        "description": "GPIO19 (I/O/Z, default at reset) with external oscillator input path, SPI-A STE, LIN receive or eCAP1 alternates; glitches during power-up with on-chip VREG."+      },+      {+        "number": "40",+        "name": "GPIO38/TCK/XCLKIN",+        "type": "bidirectional",+        "description": "GPIO38 (I/O/Z) used as JTAG TCK input with internal pullup, or external oscillator input (default XCLKIN source)."+      },+      {+        "number": "41",+        "name": "GPIO37/TDO",+        "type": "bidirectional",+        "description": "GPIO37 (I/O/Z) used as JTAG TDO scan output (8mA drive); also boot mode select pin."+      },+      {+        "number": "42",+        "name": "GPIO35/TDI",+        "type": "bidirectional",+        "description": "GPIO35 (I/O/Z) used as JTAG TDI input with internal pullup."+      },+      {+        "number": "43",+        "name": "GPIO36/TMS",+        "type": "bidirectional",+        "description": "GPIO36 (I/O/Z) used as JTAG TMS input with internal pullup."+      },+      {+        "number": "44",+        "name": "GPIO5/EPWM3B/SPISIMOA/ECAP1",+        "type": "bidirectional",+        "description": "GPIO5 (I/O/Z, default at reset) with ePWM3 output B, SPI-A SIMO or eCAP1 alternates."+      },+      {+        "number": "45",+        "name": "GPIO4/EPWM3A",+        "type": "bidirectional",+        "description": "GPIO4 (I/O/Z, default at reset) with ePWM3 output A/HRPWM alternate."+      },+      {+        "number": "46",+        "name": "GPIO3/EPWM2B/SPISOMIA/COMP2OUT",+        "type": "bidirectional",+        "description": "GPIO3 (I/O/Z, default at reset) with ePWM2 output B, SPI-A SOMI or comparator 2 output alternates."+      },+      {+        "number": "47",+        "name": "GPIO2/EPWM2A",+        "type": "bidirectional",+        "description": "GPIO2 (I/O/Z, default at reset) with ePWM2 output A/HRPWM alternate."+      },+      {+        "number": "48",+        "name": "GPIO1/EPWM1B/COMP1OUT",+        "type": "bidirectional",+        "description": "GPIO1 (I/O/Z, default at reset) with ePWM1 output B or comparator 1 output alternates."+      },+      {+        "number": "49",+        "name": "GPIO0/EPWM1A",+        "type": "bidirectional",+        "description": "GPIO0 (I/O/Z, default at reset) with ePWM1 output A/HRPWM alternate."+      },+      {+        "number": "50",+        "name": "VDDIO",+        "type": "power_in",+        "description": "Digital I/O buffer and flash supply; recommended 2.97V to 3.63V; place a decoupling capacitor on each pin."+      },+      {+        "number": "51",+        "name": "VSS",+        "type": "power_in",+        "description": "Digital ground."+      },+      {+        "number": "52",+        "name": "VDD",+        "type": "power_in",+        "description": "CPU and logic digital supply; with the internal VREG place a 1.2uF capacitor from each VDD pin to ground."+      },+      {+        "number": "53",+        "name": "VREGENZ",+        "type": "input",+        "description": "Internal VREG enable with internal pulldown; tie to VSS to enable the 1.8V VREG or to VDDIO to disable it and use an external 1.8V supply."+      },+      {+        "number": "54",+        "name": "GPIO34/COMP2OUT/COMP3OUT",+        "type": "bidirectional",+        "description": "GPIO34 (I/O/Z, default at reset) with comparator 2 or 3 output alternates; also boot mode select pin."+      },+      {+        "number": "55",+        "name": "GPIO20/EQEP1A/COMP1OUT",+        "type": "bidirectional",+        "description": "GPIO20 (I/O/Z, default at reset) with eQEP1 input A or comparator 1 output alternates."+      },+      {+        "number": "56",+        "name": "GPIO21/EQEP1B/COMP2OUT",+        "type": "bidirectional",+        "description": "GPIO21 (I/O/Z, default at reset) with eQEP1 input B or comparator 2 output alternates."+      },+      {+        "number": "57",+        "name": "EP",+        "type": "passive",+        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+      }+    ],+    "provenance": {+      "extractor": "extract_pins 0.3",+      "factory_chain": {+        "factory": "2.0.0",+        "extractor": "extract_pins 0.3",+        "primary_model": "claude-haiku-4-5-20251001",+        "primary_mode": "text",+        "consensus_model": "claude-sonnet-5-5",+        "consensus": "agreed",+        "guards": "pin_guards 0.1: passed",+        "guard_notes": [+          "extractor flagged: Pins 19-20: Pin 19 labeled as 'TZ1' in diagram appears to duplicate functionality shown for other GP; Pin 25 labeled 'SPISTE' in diagram represents SPI slave transmit enable function typically mapped to; Pins 13/31: VREFHI and VREFLO share pins with ADCINA0 and VSSA respectively; these cannot be used si",+          "exposed pad 57 added from the footprint"+        ],+        "pages_sent": 120,+        "cost_usd": 0.9794,+        "at": "2026-10-06T16:51:48"+      },+      "datasheet": {+        "url": "https://www.ti.com/cn/lit/gpn/tms320f28033",+        "pages": 176,+        "sha256": "cb9ccecfd6b5c484",+        "source_tier": "lcsc"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 57,+        "described": 57,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }+  },+  "visibility": "public",+  "org": "adom",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file