component
SN74HC573NSR
Public Made by Adomby adom
lingxingic Latches, SOIC-20-208mil. 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
markdownSN74HC573NSR
lingxingic · Latches · SOIC-20-208mil
SN74HC573NSR from lingxingic, in a SOIC-20-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OE | input | Three-state output enable input, active low; high level disables outputs to high-impedance state |
| 2 | D0 | input | Data input bit 0; latched on LE falling edge when setup and hold times are met |
| 3 | D1 | input | Data input bit 1; latched on LE falling edge when setup and hold times are met |
| 4 | D2 | input | Data input bit 2; latched on LE falling edge when setup and hold times are met |
| 5 | D3 | input | Data input bit 3; latched on LE falling edge when setup and hold times are met |
| 6 | D4 | input | Data input bit 4; latched on LE falling edge when setup and hold times are met |
| 7 | D5 | input | Data input bit 5; latched on LE falling edge when setup and hold times are met |
| 8 | D6 | input | Data input bit 6; latched on LE falling edge when setup and hold times are met |
| 9 | D7 | input | Data input bit 7; latched on LE falling edge when setup and hold times are met |
| 10 | GND | power_in | Ground reference (0V) |
| 11 | LE | input | Latch enable input, active high; when high latches are transparent (Qn=Dn), when low data is stored |
| 12 | Q7 | tri_state | Three-state output bit 7; reflects latched D7 when OE is low, high-impedance when OE is high |
| 13 | Q6 | tri_state | Three-state output bit 6; reflects latched D6 when OE is low, high-impedance when OE is high |
| 14 | Q5 | tri_state | Three-state output bit 5; reflects latched D5 when OE is low, high-impedance when OE is high |
| 15 | Q4 | tri_state | Three-state output bit 4; reflects latched D4 when OE is low, high-impedance when OE is high |
| 16 | Q3 | tri_state | Three-state output bit 3; reflects latched D3 when OE is low, high-impedance when OE is high |
| 17 | Q2 | tri_state | Three-state output bit 2; reflects latched D2 when OE is low, high-impedance when OE is high |
| 18 | Q1 | tri_state | Three-state output bit 1; reflects latched D1 when OE is low, high-impedance when OE is high |
| 19 | Q0 | tri_state | Three-state output bit 0; reflects latched D0 when OE is low, high-impedance when OE is high |
| 20 | VCC | power_in | Power supply voltage; recommended range 2.0V to 6.0V for HC variant, 4.5V to 5.5V for HCT variant |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | SOIC-20-208mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HC573NSR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-208mil (KiCad packages3D, STEP)
- 3D model files:
sn74hc573nsr-etched.step/sn74hc573nsr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc573nsr.step/sn74hc573nsr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: lingxingic datasheet (21 pp, sha256
1e9be54d60bf08ab, retrieved 2026-09-21, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).