component

USB2244I-AEZG-06-TR

Public Made by Adom

by adom

Microchip Tech Interface - Specialized, QFN-36(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icsusb2244i-aezg-06-trfactory-2.0.0extractor-text

Verified USB2244I-AEZG-06-TR

by Ray · last 9 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

9 Nov 2026RayPublished by the parts factory: tier mfr, 37 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: USB2244I-AEZG-06-TR · QFN-36(6x6) · 37 pins
  • ✓copper: 37 copper pads, none touching another net
  • ✓datasheet: all 37 pin names found in the 43-page datasheet
  • ✓distributor: lcsc C2674043, digikey USB2244I-AEZG-06-TR-ND, mouser 579-USB2244IAEZG06TR
  • ✓family: QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-x9yyghrg/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: 37 pins = 37 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 37 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ usb2244i-aezg-06-tr.kicad_sym✓ usb2244i-aezg-06-tr.kicad_mod✓ usb2244i-aezg-06-tr.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 17h ago
viewers usb2244i-aezg-06-tr: viewers · Ray 17h ago
package.json Publish 0.1.0 · Ray 17h ago
page.json Set visibility: public · Ray 17h ago
README.md Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr-etched.glb Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr-etched.step usb2244i-aezg-06-tr: factory component page (tier=mfr) · Ray 17h ago
usb2244i-aezg-06-tr-hero.glb usb2244i-aezg-06-tr: hero GLB from the etched model (keeps the MPN mark) · Ray 17h ago
usb2244i-aezg-06-tr-hero.overlay.json Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr.glb Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr.kicad_mod Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr.kicad_sym Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr.lbr Publish 0.1.0 · Ray 17h ago
usb2244i-aezg-06-tr.step Publish 0.1.0 · Ray 17h ago
verification.json Verified: Published by the parts factory: tier mfr, 37 pins · Ray 17h ago

USB2244I-AEZG-06-TR

Microchip Tech · Interface - Specialized · QFN-36(6x6)

USB2244I-AEZG-06-TR from Microchip Tech, in a QFN-36(6x6). 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 LED bidirectional Media activity LED output (I/O12 buffer, 12 mA sink and source).
2 USB+ bidirectional USB bus data plus signal, analog I/O as defined in the USB 2.0 Specification.
3 USB- bidirectional USB bus data minus signal, analog I/O as defined in the USB 2.0 Specification.
4 SD_D1 bidirectional SD/MMC bi-directional data bit 1 with weak internal pull-up, 12 mA sink and source.
5 SD_D0 bidirectional SD/MMC bi-directional data bit 0 with weak internal pull-up, 12 mA sink and source.
6 VDD33 power_in 3.3 V power and regulator input.
7 SD_D7 bidirectional SD/MMC bi-directional data bit 7 with weak internal pull-up, 12 mA sink and source.
8 SD_D6 bidirectional SD/MMC bi-directional data bit 6 with weak internal pull-up, 12 mA sink and source.
9 SD_CLK output Output clock to the SD/MMC device with software-configurable frequency, 12 mA source.
10 SD_D5 bidirectional SD/MMC bi-directional data bit 5 with weak internal pull-up, 12 mA sink and source.
11 SD_CMD bidirectional Bi-directional command signal to the CMD pin of the SD/MMC device with weak internal pull-up, 12 mA sink and source.
12 NC unconnected No connect; no trace or signal should be routed or attached to this pin.
13 VDD18 power_in +1.8 V core power; must have a 1.0 µF ± 20% (ESR < 0.1 Ω) capacitor to VSS.
14 VDD33 power_in 3.3 V power and regulator input.
15 NC unconnected No connect; no trace or signal should be routed or attached to this pin.
16 NC unconnected No connect; no trace or signal should be routed or attached to this pin.
17 NC unconnected No connect; no trace or signal should be routed or attached to this pin.
18 RESET_N input Active-low Schmitt-trigger chip reset input; the low pulse should be at least 1 µs wide.
19 NC unconnected Not connected on USB2244/44I (listed without a signal name in the reset-state table).
20 SD_D4 bidirectional SD/MMC bi-directional data bit 4 with weak internal pull-up, 12 mA sink and source.
21 CRD_PWR bidirectional Card power drive of 3.3 V at either 100 mA or 200 mA from the internal FET (I/O200 buffer).
22 VDD33 power_in 3.3 V power and regulator input.
23 SD_D3 bidirectional SD/MMC bi-directional data bit 3 with weak internal pull-up, 12 mA sink and source.
24 NC unconnected Not connected on USB2244/44I (listed without a signal name in the reset-state table).
25 SD_D2 bidirectional SD/MMC bi-directional data bit 2 with weak internal pull-up, 12 mA sink and source.
26 SD_nCD input SD card detect input, enabled as an input with pull-up after reset.
27 RXD / SDA bidirectional UART RXD input (custom firmware required) or SDA data pin to an external serial EEPROM (I/O12).
28 TEST input Test input; tie to ground for normal operation.
29 NC unconnected Not connected on USB2244/44I (listed without a signal name in the reset-state table).
30 SD_WP input SD write protect detection signal.
31 TXD / SCK output UART TXD output (custom firmware required) or clock output to an external EEPROM (O12).
32 XTAL2 output 24 MHz crystal output terminal, left open when an external clock drives XTAL1 (CLKIN).
33 XTAL1 (CLKIN) input 24 MHz crystal terminal or external 24 MHz clock input when a crystal is not used.
34 VDD18PLL power_in +1.8 V filtered analog power for the internal PLL; must have a 1.0 µF ± 20% (ESR < 0.1 Ω) capacitor to VSS.
35 RBIAS passive USB transceiver bias pin; a 12.0 kΩ ± 1.0% resistor is connected from VSS to this pin.
36 VDDA33 power_in 3.3 V analog power.
37 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package QFN-36(6x6)
Category Interface ICs
Pins 37

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 Temperature TA -40 85 °C Industrial Part; ambient temperature in still air 32
3.3 V supply voltage VDD33 3 3.6 V Note 9-3 32
3.3 V supply rise time tRT 0 400 μs 32
Voltage on USB+ and USB- pins -0.3 5.5 V 32
Storage Temperature TA -55 150 °C 31
3.3 V supply voltage VDD33 -0.5 4 V 31
Voltage on USB+ and USB- pins -0.5 6 V Printed as (3.3 V supply voltage + 2) ≤ 6V 31
Voltage on XTAL1 -0.5 3.6 V 31
Low Input Level, I and IPU/IPD buffers VILI 0.8 V TTL Levels 32
High Input Level, I and IPU/IPD buffers VIHI 2 V TTL Levels 32
Low Input Level, IS buffer VILI 0.8 V TTL Levels 32
High Input Level, IS buffer VIHI 2 V TTL Levels 32
Low Input Level, ICLK buffer VILCK 0.5 V 32
High Input Level, ICLK buffer VIHCK 1.4 V 32
Input Leakage, ICLK buffer IIL -10 10 μA VIN = 0 to VDD33 32
Input Leakage, all I and IS buffers, low IIL -10 10 μA VIN = 0 32
Input Leakage, all I and IS buffers, high IIH -10 10 μA VIN = VDD33 32
Low Output Level, O12 buffer VOL 0.4 V IOL = 12 mA @ VDD33= 3.3 V 33
Output Leakage, O12 buffer IOL -10 10 μA VIN = 0 to VDD33 (Note 9-4) 33
Low Output Level, I/O12 buffers VOL 0.4 V IOL = 12 mA @ VDD33= 3.3 V 33
Output Leakage, I/O12 buffers IOL -10 10 μA VIN = 0 to VDD33 (Note 9-4) 33
Integrated Power FET for CRD_PWR, High Output Current Mode IOUT 200 mA VdropFET = 0.46 V 33
Integrated Power FET for CRD_PWR, Low Output Current Mode IOUT 100 mA VdropFET = 0.23 V 33
On Resistance, integrated power FET RDSON 2.1 Ω IFET = 70 mA 33
Output Voltage Rise Time, integrated power FET tDSON 800 μs CLOAD = 10 μF 33
Supply Current Unconfigured ICCINIT 80 90 mA 33
Supply Current Active, Full Speed ICC 110 135 mA Full Speed 33
Supply Current Active, High Speed ICC 140 165 mA High Speed 33
Supply Current Suspend ICSBY 350 700 µA 33
Industrial Temperature Suspend ICSBYI 350 900 µA 33
Thermal Resistance, junction-to-ambient, 0 m/s ΘJA 33.2 °C/W Velocity 0 m/s 34
Thermal Resistance, junction-to-ambient, 1 m/s ΘJA 29 °C/W Velocity 1 m/s 34
Thermal Resistance, junction-to-ambient, 2 m/s ΘJA 26 °C/W Velocity 2 m/s 34
Junction-to-Top-of-Package, 0 m/s ΨJT 2.6 °C/W Velocity 0 m/s 34
Junction-to-Top-of-Package, 1 m/s ΨJT 2.6 °C/W Velocity 1 m/s 34
Junction-to-Top-of-Package, 2 m/s ΨJT 2.6 °C/W Velocity 2 m/s 34
RESET_N asserted t1 1 μsec 27
Device recovery/stabilization t2 500 μsec 27
8051 programs device configuration t3 20 50 msec 27
USB attach t4 100 msec 27
Host acknowledges attach and signals USB reset t5 100 msec 27
Ready to handle requests t7 5 msec 27
Clock Input Capacitance CXTAL 2 pF All pins (except USB pins and pins under test) are tied to AC ground 34
Input Capacitance CIN 10 pF 34
Output Capacitance COUT 20 pF 34

CAD (KiCad official)

  • Symbol: USB2244I-AEZG-06-TR
  • Footprint: Package_DFN_QFN:QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm
  • 3D model: QFN-36(6x6) (KiCad packages3D, STEP)
  • 3D model files: usb2244i-aezg-06-tr-etched.step / usb2244i-aezg-06-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); usb2244i-aezg-06-tr.step / usb2244i-aezg-06-tr.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (43 pp, sha256 3e98a6a324cc56bd, retrieved 2026-11-09, 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