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SN74LV573APWR
Public Made by Adomby adom
Texas Instruments 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
markdownSN74LV573APWR
Texas Instruments · Latches · TSSOP-20
SN74LV573APWR from Texas Instruments, 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 | Output enable input (active low); when low, outputs are enabled and driven; when high, outputs are in high-impedance state. |
| 2 | 1D | input | Data input 1; when LE is high, output 1Q follows this input; when LE transitions low, 1Q is latched. |
| 3 | 2D | input | Data input 2; when LE is high, output 2Q follows this input; when LE transitions low, 2Q is latched. |
| 4 | 3D | input | Data input 3; when LE is high, output 3Q follows this input; when LE transitions low, 3Q is latched. |
| 5 | 4D | input | Data input 4; when LE is high, output 4Q follows this input; when LE transitions low, 4Q is latched. |
| 6 | 5D | input | Data input 5; when LE is high, output 5Q follows this input; when LE transitions low, 5Q is latched. |
| 7 | 6D | input | Data input 6; when LE is high, output 6Q follows this input; when LE transitions low, 6Q is latched. |
| 8 | 7D | input | Data input 7; when LE is high, output 7Q follows this input; when LE transitions low, 7Q is latched. |
| 9 | 8D | input | Data input 8; when LE is high, output 8Q follows this input; when LE transitions low, 8Q is latched. |
| 10 | GND | power_in | Ground reference, 0 V; current rating ±70 mA maximum through VCC or GND. |
| 11 | LE | input | Latch enable input (active high); when high, Q outputs follow D inputs; when low, Q outputs are latched at previous state. |
| 12 | 8Q | tri_state | Data output 8, three-state; driven to logic state by latch 8 when OE is low, high-impedance when OE is high. |
| 13 | 7Q | tri_state | Data output 7, three-state; driven to logic state by latch 7 when OE is low, high-impedance when OE is high. |
| 14 | 6Q | tri_state | Data output 6, three-state; driven to logic state by latch 6 when OE is low, high-impedance when OE is high. |
| 15 | 5Q | tri_state | Data output 5, three-state; driven to logic state by latch 5 when OE is low, high-impedance when OE is high. |
| 16 | 4Q | tri_state | Data output 4, three-state; driven to logic state by latch 4 when OE is low, high-impedance when OE is high. |
| 17 | 3Q | tri_state | Data output 3, three-state; driven to logic state by latch 3 when OE is low, high-impedance when OE is high. |
| 18 | 2Q | tri_state | Data output 2, three-state; driven to logic state by latch 2 when OE is low, high-impedance when OE is high. |
| 19 | 1Q | tri_state | Data output 1, three-state; driven to logic state by latch 1 when OE is low, high-impedance when OE is high. |
| 20 | VCC | power_in | Power supply; operating range 2 V to 5.5 V, absolute maximum -0.5 V to 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74LV573APWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74lv573apwr-etched.step/sn74lv573apwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74lv573apwr.step/sn74lv573apwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
6c2289095b963d29, retrieved 2026-10-01, tier: manufacturer) - 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).