component

AT90USB1287-AUR

Public Made by Adom

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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-64(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentsingle chip microcomputer-microcontrollerat90usb1287-aurfactory-2.0.0extractor-text

Verified AT90USB1287-AUR

by Ray · last 8 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

8 Nov 2026RayPublished by the parts factory: tier mfr, 64 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: AT90USB1287-AUR · TQFP-64(14x14) · 64 pins
  • ✓copper: 64 copper pads, none touching another net
  • ✓datasheet: all 64 pin names found in the 456-page datasheet
  • ✓distributor: lcsc C619282, digikey AT90USB1287-AURTR-ND, mouser 556-AT90USB1287-AUR
  • ✓family: TQFP-64_14x14mm_P0.8mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-f_no0o4o/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 64 pins = 64 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 64 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ at90usb1287-aur.kicad_sym✓ at90usb1287-aur.kicad_mod✓ at90usb1287-aur.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers at90usb1287-aur: viewers · Ray
at90usb1287-aur-etched.glb Publish 0.1.0 · Ray
at90usb1287-aur-etched.step at90usb1287-aur: factory component page (tier=mfr) · Ray
at90usb1287-aur-hero.glb at90usb1287-aur: hero GLB from the etched model (keeps the MPN mark) · Ray
at90usb1287-aur-hero.overlay.json Publish 0.1.0 · Ray
at90usb1287-aur.glb Publish 0.1.0 · Ray
at90usb1287-aur.kicad_mod Publish 0.1.0 · Ray
at90usb1287-aur.kicad_sym Publish 0.1.0 · Ray
at90usb1287-aur.lbr Publish 0.1.0 · Ray
at90usb1287-aur.step Publish 0.1.0 · Ray
package.json Publish 0.1.1 · Ray
page.json Publish 0.1.1 · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier mfr, 64 pins · Ray

AT90USB1287-AUR

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · TQFP-64(14x14)

AT90USB1287-AUR from Microchip Tech, in a TQFP-64(14x14). 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 PE6 bidirectional Port E bit 6, bidirectional I/O with internal pull-up, alternate functions INT.6 and AIN.0.
2 PE7 bidirectional Port E bit 7, bidirectional I/O with internal pull-up, alternate functions INT.7, AIN.1 and UVcon.
3 UVCC power_in USB pads internal regulator input supply voltage.
4 D- bidirectional USB full/low speed negative data upstream port; connect to the USB D- connector pin with a serial 22 ohm resistor.
5 D+ bidirectional USB full/low speed positive data upstream port; connect to the USB D+ connector pin with a serial 22 ohm resistor.
6 UGND power_in USB pads ground.
7 UCAP power_out USB pads internal regulator output supply voltage; connect an external 1 uF capacitor.
8 VBUS power_in USB VBUS monitor and OTG negotiations.
9 PE3 bidirectional Port E bit 3, bidirectional I/O with internal pull-up, alternate function IUID.
10 PB0 bidirectional Port B bit 0, bidirectional I/O with internal pull-up, alternate functions SS (SPI slave select input) and PCINT0.
11 PB1 bidirectional Port B bit 1, bidirectional I/O with internal pull-up, alternate functions SCK (SPI clock) and PCINT1.
12 PB2 bidirectional Port B bit 2, bidirectional I/O with internal pull-up, alternate functions PDI/MOSI (SPI data) and PCINT2.
13 PB3 bidirectional Port B bit 3, bidirectional I/O with internal pull-up, alternate functions PDO/MISO (SPI data) and PCINT3.
14 PB4 bidirectional Port B bit 4, bidirectional I/O with internal pull-up, alternate functions OC2A and PCINT4.
15 PB5 bidirectional Port B bit 5, bidirectional I/O with internal pull-up, alternate functions OC1A and PCINT5.
16 PB6 bidirectional Port B bit 6, bidirectional I/O with internal pull-up, alternate functions OC1B and PCINT6.
17 PB7 bidirectional Port B bit 7, bidirectional I/O with internal pull-up, alternate functions OC0A, OC1C and PCINT7.
18 PE4 bidirectional Port E bit 4, bidirectional I/O with internal pull-up, alternate functions INT4 and TOSC1.
19 PE5 bidirectional Port E bit 5, bidirectional I/O with internal pull-up, alternate functions INT.5 and TOSC2.
20 RESET input Reset input; a low level longer than the minimum pulse length generates a reset even if the clock is not running.
21 VCC power_in Digital supply voltage.
22 GND power_in Ground.
23 XTAL2 output Output from the inverting oscillator amplifier.
24 XTAL1 input Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
25 PD0 bidirectional Port D bit 0, bidirectional I/O with internal pull-up, alternate functions INT0, SCL (TWI clock) and OC0B.
26 PD1 bidirectional Port D bit 1, bidirectional I/O with internal pull-up, alternate functions INT1, SDA (TWI data) and OC2B.
27 PD2 bidirectional Port D bit 2, bidirectional I/O with internal pull-up, alternate functions INT2 and RXD1.
28 PD3 bidirectional Port D bit 3, bidirectional I/O with internal pull-up, alternate functions INT3 and TXD1.
29 PD4 bidirectional Port D bit 4, bidirectional I/O with internal pull-up, alternate function ICP1 (Timer/Counter1 input capture).
30 PD5 bidirectional Port D bit 5, bidirectional I/O with internal pull-up, alternate function XCK1 (USART1 external clock).
31 PD6 bidirectional Port D bit 6, bidirectional I/O with internal pull-up, alternate function T1 (Timer/Counter1 clock input).
32 PD7 bidirectional Port D bit 7, bidirectional I/O with internal pull-up, alternate function T0 (Timer/Counter0 clock input).
33 PE0 bidirectional Port E bit 0, bidirectional I/O with internal pull-up, alternate function WR (external memory write strobe).
34 PE1 bidirectional Port E bit 1, bidirectional I/O with internal pull-up, alternate function RD (external memory read strobe).
35 PC0 bidirectional Port C bit 0, bidirectional I/O with internal pull-up, alternate function A8 (external memory address).
36 PC1 bidirectional Port C bit 1, bidirectional I/O with internal pull-up, alternate function A9 (external memory address).
37 PC2 bidirectional Port C bit 2, bidirectional I/O with internal pull-up, alternate function A10 (external memory address).
38 PC3 bidirectional Port C bit 3, bidirectional I/O with internal pull-up, alternate functions A11 and T3.
39 PC4 bidirectional Port C bit 4, bidirectional I/O with internal pull-up, alternate functions A12 and OC3C.
40 PC5 bidirectional Port C bit 5, bidirectional I/O with internal pull-up, alternate functions A13 and OC3B.
41 PC6 bidirectional Port C bit 6, bidirectional I/O with internal pull-up, alternate functions A14 and OC3A.
42 PC7 bidirectional Port C bit 7, bidirectional I/O with internal pull-up, alternate functions A15, IC3 and CLKO (divided system clock).
43 PE2 bidirectional Port E bit 2, bidirectional I/O with internal pull-up, alternate functions ALE and HWB.
44 PA7 bidirectional Port A bit 7, bidirectional I/O with internal pull-up, alternate function AD7 (external memory address/data).
45 PA6 bidirectional Port A bit 6, bidirectional I/O with internal pull-up, alternate function AD6 (external memory address/data).
46 PA5 bidirectional Port A bit 5, bidirectional I/O with internal pull-up, alternate function AD5 (external memory address/data).
47 PA4 bidirectional Port A bit 4, bidirectional I/O with internal pull-up, alternate function AD4 (external memory address/data).
48 PA3 bidirectional Port A bit 3, bidirectional I/O with internal pull-up, alternate function AD3 (external memory address/data).
49 PA2 bidirectional Port A bit 2, bidirectional I/O with internal pull-up, alternate function AD2 (external memory address/data).
50 PA1 bidirectional Port A bit 1, bidirectional I/O with internal pull-up, alternate function AD1 (external memory address/data).
51 PA0 bidirectional Port A bit 0, bidirectional I/O with internal pull-up, alternate function AD0 (external memory address/data).
52 VCC power_in Digital supply voltage.
53 GND power_in Ground.
54 PF7 bidirectional Port F bit 7, ADC7 analog input or I/O, also JTAG TDI with pull-up active even during reset when JTAG is enabled.
55 PF6 bidirectional Port F bit 6, ADC6 analog input or I/O, also JTAG TDO.
56 PF5 bidirectional Port F bit 5, ADC5 analog input or I/O, also JTAG TMS with pull-up active even during reset when JTAG is enabled.
57 PF4 bidirectional Port F bit 4, ADC4 analog input or I/O, also JTAG TCK with pull-up active even during reset when JTAG is enabled.
58 PF3 bidirectional Port F bit 3, ADC3 analog input to the A/D converter or I/O.
59 PF2 bidirectional Port F bit 2, ADC2 analog input to the A/D converter or I/O.
60 PF1 bidirectional Port F bit 1, ADC1 analog input to the A/D converter or I/O.
61 PF0 bidirectional Port F bit 0, ADC0 analog input to the A/D converter or I/O.
62 AREF input Analog reference pin for the A/D converter.
63 GND power_in Ground.
64 AVCC power_in Analog supply voltage.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TQFP-64(14x14)
Category Single Chip Microcomputer/Microcontroller
Pins 64

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating supply voltage VCC 2.7 5.5 V Industrial range; max 16 MHz speed 429
Operating temperature -40 85 °C Industrial range 390
Storage temperature -65 150 °C 390
Voltage on any pin except RESET and VBUS -0.5 V With respect to ground; max printed as VCC+0.5V 390
Voltage on RESET -0.5 13 V With respect to ground 390
Voltage on VBUS -0.5 6 V With respect to ground 390
Maximum operating voltage 6 V 390
DC current per I/O pin 40 mA 390
DC current VCC and GND pins 200 mA 390
Input low voltage, except XTAL1 and RESET pin VIL -0.5 V VCC = 2.7V - 5.5V; max printed as 0.2VCC 390
Input low voltage, XTAL1 pin VIL1 -0.5 V VCC = 2.7V - 5.5V; max printed as 0.1VCC 390
Input low voltage, RESET pin VIL2 -0.5 V VCC = 2.7V - 5.5V; max printed as 0.1VCC 390
Output low voltage VOL 0.7 V IOL = 10mA, VCC = 5V 390
Output low voltage VOL 0.5 V IOL = 5mA, VCC = 3V 390
Output high voltage VOH 4.2 4.5 V IOH = -20mA, VCC = 5V 390
Output high voltage VOH 2.3 2.6 V IOH = -10mA, VCC = 3V 390
Input leakage current I/O pin (low) IIL 1 µA VCC = 5.5V, pin low (absolute value) 390
Input leakage current I/O pin (high) IIH 1 µA VCC = 5.5V, pin high (absolute value) 390
Reset pull-up resistor RRST 30 60 kΩ 390
I/O pin pull-up resistor RPU 20 50 kΩ 390
RESET pin threshold voltage VRST 0.2 0.85 VCC 58
Minimum pulse width on RESET pin tRST 400 ns 5V, 25°C 58
Brown-out detection threshold VBOT (BODLEVEL 011) VBOT 2.4 2.6 2.8 V BODLEVEL2..0 fuses = 011 60
Brown-out detection threshold VBOT (BODLEVEL 010) VBOT 3.2 3.4 3.6 V BODLEVEL2..0 fuses = 010 60
Brown-out detection threshold VBOT (BODLEVEL 001) VBOT 3.3 3.5 3.7 V BODLEVEL2..0 fuses = 001 60
Brown-out detection threshold VBOT (BODLEVEL 000) VBOT 4.1 4.3 4.5 V BODLEVEL2..0 fuses = 000 60
Bandgap reference voltage VBG 1 1.1 1.2 V 62
Minimum pulse width for asynchronous external interrupt tINT 50 ns 92

CAD (KiCad official)

  • Symbol: AT90USB1287-AUR
  • Footprint: Package_QFP:TQFP-64_14x14mm_P0.8mm
  • 3D model: TQFP-64(14x14) (KiCad packages3D, STEP)
  • 3D model files: at90usb1287-aur-etched.step / at90usb1287-aur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at90usb1287-aur.step / at90usb1287-aur.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (456 pp, sha256 35fbe95dd74314a9, retrieved 2026-11-08, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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