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Contents

README

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74AVCH4T245RSVR-NT

Texas Instruments · Global Sourcing Parts · UQFN-16(2.6x1.8)

74AVCH4T245RSVR-NT from Texas Instruments, in a UQFN-16(2.6x1.8). 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 1OE input Output-enable control for channel 1; low enables outputs selected by 1DIR, high places all 1-side outputs in high-impedance state, referenced to VCCA.
2 VCCB power_in B-side power supply voltage; 1.2V ≤ VCCB ≤ 3.6V.
3 VCCA power_in A-side power supply voltage and control logic supply; 1.2V ≤ VCCA ≤ 3.6V.
4 1DIR input Direction-control input for channel 1; high selects A-to-B data transmission, low selects B-to-A transmission, referenced to VCCA.
5 2DIR input Direction-control input for channel 2; high selects A-to-B data transmission, low selects B-to-A transmission, referenced to VCCA.
6 1A1 bidirectional Bidirectional data I/O for channel 1, bit 1; referenced to VCCA.
7 1A2 bidirectional Bidirectional data I/O for channel 1, bit 2; referenced to VCCA.
8 2A1 bidirectional Bidirectional data I/O for channel 2, bit 1; referenced to VCCA.
9 2A2 bidirectional Bidirectional data I/O for channel 2, bit 2; referenced to VCCA.
10 GND power_in Ground connection, power supply return.
11 GND power_in Ground connection, power supply return.
12 2B2 bidirectional Bidirectional data I/O for channel 2, bit 2; referenced to VCCB.
13 2B1 bidirectional Bidirectional data I/O for channel 2, bit 1; referenced to VCCB.
14 1B2 bidirectional Bidirectional data I/O for channel 1, bit 2; referenced to VCCB.
15 1B1 bidirectional Bidirectional data I/O for channel 1, bit 1; referenced to VCCB.
16 2OE input Output-enable control for channel 2; low enables outputs selected by 2DIR, high places all 2-side outputs in high-impedance state, referenced to VCCA.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package UQFN-16(2.6x1.8)
Category Global Sourcing Parts
Pins 17

CAD (KiCad official)

  • Symbol: 74AVCH4T245RSVR-NT
  • Footprint: Package_DFN_QFN:QFN-16-1EP_1.8x2.6mm_P0.4mm_EP0.7x1.5mm
  • 3D model: UQFN-16(2.6x1.8), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: 74avch4t245rsvr-nt-etched.step / 74avch4t245rsvr-nt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74avch4t245rsvr-nt.step / 74avch4t245rsvr-nt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 1e7d06a424ca6da2, 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 0.2, 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