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74LCX541FT

Public Made by Adom

by adom

TOSHIBA Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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74LCX541FT

TOSHIBA · Buffers, Drivers, Receivers, Transceivers · TSSOP-20

74LCX541FT from TOSHIBA, 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 OE1 input Active-low output enable 1; when either OE1 or OE2 is high the outputs are in the high-impedance state.
2 A1 input Data input 1 of the octal non-inverting buffer, 5-V tolerant.
3 A2 input Data input 2 of the octal non-inverting buffer, 5-V tolerant.
4 A3 input Data input 3 of the octal non-inverting buffer, 5-V tolerant.
5 A4 input Data input 4 of the octal non-inverting buffer, 5-V tolerant.
6 A5 input Data input 5 of the octal non-inverting buffer, 5-V tolerant.
7 A6 input Data input 6 of the octal non-inverting buffer, 5-V tolerant.
8 A7 input Data input 7 of the octal non-inverting buffer, 5-V tolerant.
9 A8 input Data input 8 of the octal non-inverting buffer, 5-V tolerant.
10 GND power_in Ground pin (0 V reference).
11 Y8 tri_state 3-state output 8, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
12 Y7 tri_state 3-state output 7, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
13 Y6 tri_state 3-state output 6, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
14 Y5 tri_state 3-state output 5, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
15 Y4 tri_state 3-state output 4, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
16 Y3 tri_state 3-state output 3, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
17 Y2 tri_state 3-state output 2, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
18 Y1 tri_state 3-state output 1, high-impedance when either OE1 or OE2 is high; 5-V tolerant, IOH/IOL 24 mA min at VCC = 3.0 V.
19 OE2 input Active-low output enable 2; when either OE1 or OE2 is high the outputs are in the high-impedance state.
20 VCC power_in Positive supply voltage, operating range 1.65 to 3.6 V.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package TSSOP-20
Category Logic
Pins 20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC -0.5 6.5 V 3
Input voltage VIN -0.5 6.5 V 3
Output voltage VOUT -0.5 6.5 V Output in OFF state (Note 1) 3
Output voltage (max printed as VCC + 0.5) VOUT -0.5 V High or low state (Note 2) 3
Input diode current IIK -50 mA 3
Output diode current IOK -50 50 mA VOUT < GND, VOUT > VCC (Note 3) 3
Output current IOUT -50 50 mA 3
Power dissipation PD 180 mW 3
VCC/ground current ICC/IGND -100 100 mA 3
Storage temperature Tstg -65 150 °C 3
Supply voltage (operating) VCC 1.65 3.6 V 4
Supply voltage (data retention) VCC 1.5 3.6 V Data retention only (Note 1) 4
Input voltage VIN 0 5.5 V 4
Output voltage (OFF state) VOUT 0 5.5 V Output in OFF state (Note 2) 4
Output voltage (max printed as VCC) VOUT 0 V High or low state (Note 3) 4
Output current IOH/IOL IOH,IOL -24 24 mA VCC = 3.0 to 3.6 V (Note 4) 4
Output current IOH/IOL IOH,IOL -12 12 mA VCC = 2.7 to 3.0 V (Note 5) 4
Operating temperature Topr -40 85 °C 4
Input rise and fall times dt/dv 0 10 ns/V VIN = 0.8 to 2.0 V, VCC = 3.0 V (Note 6) 4
High-level input voltage VIH 1.7 V VCC = 2.3 to 2.7 V; Ta = -40 to 85 °C 4
High-level input voltage VIH 2 V VCC = 2.7 to 3.6 V; Ta = -40 to 85 °C 4
Low-level input voltage VIL 0.7 V VCC = 2.3 to 2.7 V; Ta = -40 to 85 °C 4
Low-level input voltage VIL 0.8 V VCC = 2.7 to 3.6 V; Ta = -40 to 85 °C 4
High-level output voltage VOH 1.05 V VIN = VIH or VIL; IOH = -4 mA; VCC = 1.65 V; Ta = -40 to 85 °C 4
High-level output voltage VOH 1.7 V VIN = VIH or VIL; IOH = -8 mA; VCC = 2.3 V; Ta = -40 to 85 °C 4
High-level output voltage VOH 2.2 V VIN = VIH or VIL; IOH = -12 mA; VCC = 2.7 V; Ta = -40 to 85 °C 4
High-level output voltage VOH 2.4 V VIN = VIH or VIL; IOH = -18 mA; VCC = 3.0 V; Ta = -40 to 85 °C 4
Low-level output voltage VOL 0.2 V VIN = VIH or VIL; IOL = 100 µA; VCC = 1.65 to 3.6 V; Ta = -40 to 85 °C 4
Low-level output voltage VOL 0.45 V VIN = VIH or VIL; IOL = 4 mA; VCC = 1.65 V; Ta = -40 to 85 °C 4
Low-level output voltage VOL 0.7 V VIN = VIH or VIL; IOL = 8 mA; VCC = 2.3 V; Ta = -40 to 85 °C 4
Low-level output voltage VOL 0.4 V VIN = VIH or VIL; IOL = 12 mA; VCC = 2.7 V; Ta = -40 to 85 °C 4
Low-level output voltage VOL 0.55 V VIN = VIH or VIL; IOL = 24 mA; VCC = 3.0 V; Ta = -40 to 85 °C 4
Input leakage current IIN -5 5 µA VIN = 0 to 5.5 V; VCC = 1.65 to 3.6 V; Ta = -40 to 85 °C 4
3-state output OFF-state leakage current IOZ -5 5 µA VIN = VIH or VIL; VOUT = 0 to 5.5 V; VCC = 1.65 to 3.6 V; Ta = -40 to 85 °C 4
Power-OFF leakage current IOFF 10 µA VIN/VOUT = 5.5 V; VCC = 0 V; Ta = -40 to 85 °C 4
Quiescent supply current ICC 10 µA VIN = VCC or GND; VCC = 1.65 to 3.6 V; Ta = -40 to 85 °C 4
Quiescent supply current (per input) ΔICC 500 µA VIH = VCC - 0.6 V (per input); VIN/VOUT = 3.6 to 5.5 V; VCC = 2.7 to 3.6 V; Ta = -40 to 85 °C 4
Propagation delay time tPLH,tPHL 25 ns VCC = 1.8 ± 0.15 V; see 11.5 AC Test Circuit, Fig. 11.6.1; Ta = -40 to 85 °C 5
Propagation delay time tPLH,tPHL 8.5 ns VCC = 2.5 ± 0.2 V; see 11.5 AC Test Circuit, Fig. 11.6.1; Ta = -40 to 85 °C 5
Propagation delay time tPLH,tPHL 7.5 ns VCC = 2.7 V; see 11.5 AC Test Circuit, Fig. 11.6.1; Ta = -40 to 85 °C 5
Propagation delay time tPLH,tPHL 6.5 ns VCC = 3.3 ± 0.3 V; see 11.5 AC Test Circuit, Fig. 11.6.1; Ta = -40 to 85 °C 5
3-state output enable time tPZL,tPZH 34 ns VCC = 1.8 ± 0.15 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output enable time tPZL,tPZH 17 ns VCC = 2.5 ± 0.2 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output enable time tPZL,tPZH 9.5 ns VCC = 2.7 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output enable time tPZL,tPZH 8.5 ns VCC = 3.3 ± 0.3 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output disable time tPLZ,tPHZ 32 ns VCC = 1.8 ± 0.15 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output disable time tPLZ,tPHZ 16 ns VCC = 2.5 ± 0.2 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output disable time tPLZ,tPHZ 8.5 ns VCC = 2.7 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
3-state output disable time tPLZ,tPHZ 7.5 ns VCC = 3.3 ± 0.3 V; see 11.5 AC Test Circuit, Fig. 11.6.2; Ta = -40 to 85 °C 5
Output skew tosLH,tosHL 1 ns VCC = 2.7 V and 3.3 ± 0.3 V (single value printed); Note 1 (design-guaranteed) 5

CAD (KiCad official)

  • Symbol: 74LCX541FT
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: 74lcx541ft-etched.step / 74lcx541ft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lcx541ft.step / 74lcx541ft.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TOSHIBA datasheet (9 pp, sha256 b8a4a9d2fcc7dcaf, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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).

Datasheet PDF