Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

SN74LVC374APWR

Texas Instruments · Flip Flops · TSSOP-20

SN74LVC374APWR from Texas Instruments, in a TSSOP-20. 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 OE input Enable pin (OE) for the octal outputs, per the Pin Functions table.
2 1Q output Output 1 of the 3-state outputs, per the Pin Functions table.
3 1D input Data input 1 to the flip-flop, per the Pin Functions table.
4 2D input Data input 2 to the flip-flop, per the Pin Functions table.
5 2Q output Output 2 of the 3-state outputs, per the Pin Functions table.
6 3Q output Output 3 of the 3-state outputs, per the Pin Functions table.
7 3D input Data input 3 to the flip-flop, per the Pin Functions table.
8 4D input Data input 4 to the flip-flop, per the Pin Functions table.
9 4Q output Output 4 of the 3-state outputs, per the Pin Functions table.
10 GND power_in Ground pin; the device operates from VCC of 1.65 V to 3.6 V per the Features section.
11 CLK input Clock input for the octal edge-triggered D-type flip-flops.
12 5Q output Output 5 of the 3-state outputs, per the Pin Functions table.
13 5D input Data input 5 to the flip-flop, per the Pin Functions table.
14 6D input Data input 6 to the flip-flop, per the Pin Functions table.
15 6Q output Output 6 of the 3-state outputs, per the Pin Functions table.
16 7Q output Output 7 of the 3-state outputs, per the Pin Functions table.
17 7D input Data input 7 to the flip-flop, per the Pin Functions table.
18 8D input Data input 8 to the flip-flop, per the Pin Functions table.
19 8Q output Output 8 of the 3-state outputs, per the Pin Functions table.
20 VCC power_in Power pin; the SN74LVC374A is designed for 1.65-V to 3.6-V VCC operation per the Features section.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-20
Category Logic
Pins 20

CAD (KiCad official)

  • Symbol: SN74LVC374APWR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74lvc374apwr-etched.step / sn74lvc374apwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc374apwr.step / sn74lvc374apwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 78071ef9888538ba, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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