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74LCX573FT
Public Made by Adomby adom
TOSHIBA Latches, TSSOP-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
markdown74LCX573FT
TOSHIBA · Latches · TSSOP-20
74LCX573FT from TOSHIBA, in a TSSOP-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 | Active-low output enable; when HIGH all Q outputs are forced to high-impedance state; 5-V tolerant, VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 2 | D0 | input | Data input bit 0; 5-V tolerant; latched to Q0 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 3 | D1 | input | Data input bit 1; 5-V tolerant; latched to Q1 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 4 | D2 | input | Data input bit 2; 5-V tolerant; latched to Q2 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 5 | D3 | input | Data input bit 3; 5-V tolerant; latched to Q3 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 6 | D4 | input | Data input bit 4; 5-V tolerant; latched to Q4 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 7 | D5 | input | Data input bit 5; 5-V tolerant; latched to Q5 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 8 | D6 | input | Data input bit 6; 5-V tolerant; latched to Q6 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 9 | D7 | input | Data input bit 7; 5-V tolerant; latched to Q7 on falling edge of LE; VIH(min) = VCC×0.9 (VCC = 1.65-2.3 V). |
| 10 | GND | power_in | Ground reference; VCC/GND absolute maximum current ±100 mA. |
| 11 | LE | input | Latch enable; Q outputs track D inputs while HIGH, latch data on falling edge; minimum HIGH pulse width tw(H) = 3.3 ns (VCC = 3.3 V). |
| 12 | Q7 | tri_state | 3-state latch output bit 7; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 13 | Q6 | tri_state | 3-state latch output bit 6; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 14 | Q5 | tri_state | 3-state latch output bit 5; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 15 | Q4 | tri_state | 3-state latch output bit 4; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 16 | Q3 | tri_state | 3-state latch output bit 3; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 17 | Q2 | tri_state | 3-state latch output bit 2; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 18 | Q1 | tri_state | 3-state latch output bit 1; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 19 | Q0 | tri_state | 3-state latch output bit 0; IOH = −24 mA min, IOL = 24 mA min (VCC = 3.0-3.6 V); high-impedance when OE is HIGH; 5-V tolerant. |
| 20 | VCC | power_in | Positive supply voltage; operating range 1.65 to 3.6 V; absolute maximum 6.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
74LCX573FT - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
74lcx573ft-etched.step/74lcx573ft-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74lcx573ft.step/74lcx573ft.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (10 pp, sha256
6ae4872c9b7d0076, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(text+vision), consensusclaude-opus-4-7(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).