component
MC74AC573DTR2G
Public Made by Adomby adom
onsemi Latches, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMC74AC573DTR2G
onsemi · Latches · TSSOP-20
MC74AC573DTR2G from onsemi, 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 | 3-state output enable input; when LOW the output buffers are enabled, and when HIGH the outputs are high impedance without blocking new data from entering the latches. |
| 2 | D0 | input | Data input 0 that enters the latch while LE is HIGH. |
| 3 | D1 | input | Data input 1 that enters the latch while LE is HIGH. |
| 4 | D2 | input | Data input 2 that enters the latch while LE is HIGH. |
| 5 | D3 | input | Data input 3 that enters the latch while LE is HIGH. |
| 6 | D4 | input | Data input 4 that enters the latch while LE is HIGH. |
| 7 | D5 | input | Data input 5 that enters the latch while LE is HIGH. |
| 8 | D6 | input | Data input 6 that enters the latch while LE is HIGH. |
| 9 | D7 | input | Data input 7 that enters the latch while LE is HIGH. |
| 10 | GND | power_in | Ground reference for the supply and all input/output voltages. |
| 11 | LE | input | Latch enable input; latches are transparent when HIGH and store the data present at the HIGH-to-LOW transition when LOW. |
| 12 | O7 | tri_state | 3-state latch output 7 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 13 | O6 | tri_state | 3-state latch output 6 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 14 | O5 | tri_state | 3-state latch output 5 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 15 | O4 | tri_state | 3-state latch output 4 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 16 | O3 | tri_state | 3-state latch output 3 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 17 | O2 | tri_state | 3-state latch output 2 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 18 | O1 | tri_state | 3-state latch output 1 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 19 | O0 | tri_state | 3-state latch output 0 that sources/sinks 24 mA and is high impedance when OE is HIGH. |
| 20 | VCC | power_in | Positive supply; recommended 2.0 V to 6.0 V for 'AC and 4.5 V to 5.5 V for 'ACT, absolute maximum -0.5 V to +7.0 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
MC74AC573DTR2G - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
mc74ac573dtr2g-etched.step/mc74ac573dtr2g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc74ac573dtr2g.step/mc74ac573dtr2g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (11 pp, sha256
607ffb8810b5687a, retrieved 2026-10-20, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).