component
SN74ABT574ADWR
Public Made by Adomby adom
Texas Instruments Flip Flops, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN74ABT574ADWR
Texas Instruments · Flip Flops · SOIC-20-300mil
SN74ABT574ADWR 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 | Buffered output-enable input; low enables 3-state Q outputs to normal logic state, high places them in high-impedance state. |
| 2 | 1D | input | Data input for flip-flop 1; logic level is transferred to output 1Q on positive clock transition. |
| 3 | 2D | input | Data input for flip-flop 2; logic level is transferred to output 2Q on positive clock transition. |
| 4 | 3D | input | Data input for flip-flop 3; logic level is transferred to output 3Q on positive clock transition. |
| 5 | 4D | input | Data input for flip-flop 4; logic level is transferred to output 4Q on positive clock transition. |
| 6 | 5D | input | Data input for flip-flop 5; logic level is transferred to output 5Q on positive clock transition. |
| 7 | 6D | input | Data input for flip-flop 6; logic level is transferred to output 6Q on positive clock transition. |
| 8 | 7D | input | Data input for flip-flop 7; logic level is transferred to output 7Q on positive clock transition. |
| 9 | 8D | input | Data input for flip-flop 8; logic level is transferred to output 8Q on positive clock transition. |
| 10 | GND | power_in | Ground; negative supply voltage reference. |
| 11 | CLK | input | Clock input; positive edge triggers transfer of data from D inputs to Q outputs. |
| 12 | 8Q | tri_state | 3-state output for flip-flop 8; normal logic state when OE is low, high-impedance when OE is high. |
| 13 | 7Q | tri_state | 3-state output for flip-flop 7; normal logic state when OE is low, high-impedance when OE is high. |
| 14 | 6Q | tri_state | 3-state output for flip-flop 6; normal logic state when OE is low, high-impedance when OE is high. |
| 15 | 5Q | tri_state | 3-state output for flip-flop 5; normal logic state when OE is low, high-impedance when OE is high. |
| 16 | 4Q | tri_state | 3-state output for flip-flop 4; normal logic state when OE is low, high-impedance when OE is high. |
| 17 | 3Q | tri_state | 3-state output for flip-flop 3; normal logic state when OE is low, high-impedance when OE is high. |
| 18 | 2Q | tri_state | 3-state output for flip-flop 2; normal logic state when OE is low, high-impedance when OE is high. |
| 19 | 1Q | tri_state | 3-state output for flip-flop 1; normal logic state when OE is low, high-impedance when OE is high. |
| 20 | VCC | power_in | Positive supply voltage; recommended operating voltage range is 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:
SN74ABT574ADWR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
sn74abt574adwr-etched.step/sn74abt574adwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74abt574adwr.step/sn74abt574adwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
7d8bbb1be5d32de3, retrieved 2026-10-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).