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CD74HCT574QM96G4Q1

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Texas Instruments Flip Flops, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CD74HCT574QM96G4Q1

Texas Instruments · Flip Flops · SOIC-20-300mil

CD74HCT574QM96G4Q1 from Texas Instruments, in a SOIC-20-300mil. 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 Active-low output enable control; drives Q outputs when low, forces outputs to high-impedance when high.
2 D0 input Data input bit 0; captured into storage register on rising edge of clock (CP).
3 D1 input Data input bit 1; captured into storage register on rising edge of clock (CP).
4 D2 input Data input bit 2; captured into storage register on rising edge of clock (CP).
5 D3 input Data input bit 3; captured into storage register on rising edge of clock (CP).
6 D4 input Data input bit 4; captured into storage register on rising edge of clock (CP).
7 D5 input Data input bit 5; captured into storage register on rising edge of clock (CP).
8 D6 input Data input bit 6; captured into storage register on rising edge of clock (CP).
9 D7 input Data input bit 7; captured into storage register on rising edge of clock (CP).
10 GND power_in Ground; 0 V reference.
11 CP input Clock input; rising edge transition triggers capture of D0-D7 data into internal registers.
12 Q7 tri_state 3-state output bit 7; driven from register when OE is low, high-impedance when OE is high.
13 Q6 tri_state 3-state output bit 6; driven from register when OE is low, high-impedance when OE is high.
14 Q5 tri_state 3-state output bit 5; driven from register when OE is low, high-impedance when OE is high.
15 Q4 tri_state 3-state output bit 4; driven from register when OE is low, high-impedance when OE is high.
16 Q3 tri_state 3-state output bit 3; driven from register when OE is low, high-impedance when OE is high.
17 Q2 tri_state 3-state output bit 2; driven from register when OE is low, high-impedance when OE is high.
18 Q1 tri_state 3-state output bit 1; driven from register when OE is low, high-impedance when OE is high.
19 Q0 tri_state 3-state output bit 0; driven from register when OE is low, high-impedance when OE is high.
20 VCC power_in Positive supply voltage; recommended operating range 4.5 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-20-300mil
Category Logic
Pins 20

CAD (KiCad official)

  • Symbol: CD74HCT574QM96G4Q1
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: cd74hct574qm96g4q1-etched.step / cd74hct574qm96g4q1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd74hct574qm96g4q1.step / cd74hct574qm96g4q1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (17 pp, sha256 724bb46750578974, retrieved 2026-10-03, tier: lcsc)
  • 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