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SN74HC573AN
Public Made by Adomby adom
Texas Instruments Latches, DIP-20. Datasheet-verified pinout, 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
markdownSN74HC573AN
Texas Instruments · Latches · DIP-20
SN74HC573AN from Texas Instruments, in a DIP-20. 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 | Output Enable input (active low); controls tri-state output buffers when low enables normal logic state, when high places outputs in high-impedance state |
| 2 | 1D | input | First data input to latch channel 1; accepts voltage 0 to VCC |
| 3 | 2D | input | Second data input to latch channel 2; accepts voltage 0 to VCC |
| 4 | 3D | input | Third data input to latch channel 3; accepts voltage 0 to VCC |
| 5 | 4D | input | Fourth data input to latch channel 4; accepts voltage 0 to VCC |
| 6 | 5D | input | Fifth data input to latch channel 5; accepts voltage 0 to VCC |
| 7 | 6D | input | Sixth data input to latch channel 6; accepts voltage 0 to VCC |
| 8 | 7D | input | Seventh data input to latch channel 7; accepts voltage 0 to VCC |
| 9 | 8D | input | Eighth data input to latch channel 8; accepts voltage 0 to VCC |
| 10 | GND | power_in | Ground; negative supply reference, continuous current through GND limited to ±70 mA |
| 11 | LE | input | Latch Enable input (active high); when high Q outputs respond to D inputs (transparent mode), when low Q outputs latch and retain data |
| 12 | 8Q | tri_state | Eighth tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 13 | 7Q | tri_state | Seventh tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 14 | 6Q | tri_state | Sixth tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 15 | 5Q | tri_state | Fifth tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 16 | 4Q | tri_state | Fourth tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 17 | 3Q | tri_state | Third tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 18 | 2Q | tri_state | Second tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 19 | 1Q | tri_state | First tri-state buffered output; sources/sinks ±6 mA at VCC = 4.5 V, high-impedance state when OE high |
| 20 | VCC | power_in | Positive power supply; operating range 2 V to 6 V nominal 5 V, continuous current through VCC limited to ±70 mA |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DIP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HC573AN - Footprint:
Package_DIP:DIP-20_W7.62mm - 3D model: DIP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74hc573an-etched.step/sn74hc573an-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc573an.step/sn74hc573an.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
5a314ba1178516d3, retrieved 2026-09-23, 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-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).