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74VHCT541AFT
Public Made by Adomby adom
TOSHIBA Specialty Logic, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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Datasheet
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README
markdown74VHCT541AFT
TOSHIBA · Specialty Logic · TSSOP-20
74VHCT541AFT 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 | G1 | input | Active-low output enable input 1; when G1 or G2 is high the Y outputs are in the high-impedance state. |
| 2 | A1 | input | Data input 1, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 3 | A2 | input | Data input 2, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 4 | A3 | input | Data input 3, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 5 | A4 | input | Data input 4, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 6 | A5 | input | Data input 5, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 7 | A6 | input | Data input 6, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 8 | A7 | input | Data input 7, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 9 | A8 | input | Data input 8, TTL-compatible (VIH 2.0 V min, VIL 0.8 V max), accepts 0 to 5.5 V. |
| 10 | GND | power_in | Ground pin (0 V reference). |
| 11 | Y8 | tri_state | Non-inverted 3-state output 8; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 12 | Y7 | tri_state | Non-inverted 3-state output 7; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 13 | Y6 | tri_state | Non-inverted 3-state output 6; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 14 | Y5 | tri_state | Non-inverted 3-state output 5; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 15 | Y4 | tri_state | Non-inverted 3-state output 4; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 16 | Y3 | tri_state | Non-inverted 3-state output 3; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 17 | Y2 | tri_state | Non-inverted 3-state output 2; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 18 | Y1 | tri_state | Non-inverted 3-state output 1; high-impedance when G1 or G2 is high, IOH/IOL of -8/8 mA specified. |
| 19 | G2 | input | Active-low output enable input 2; when G1 or G2 is high the Y outputs are in the high-impedance state. |
| 20 | VCC | power_in | Supply voltage pin, operating range 4.5 to 5.5 V (absolute maximum -0.5 to 7.0 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 (absolute max) | VCC | -0.5 | 7 | V | 3 | ||
| Input voltage (absolute max) | VIN | -0.5 | 7 | V | 3 | ||
| Output voltage (absolute max) | VOUT | -0.5 | 7 | V | Output in OFF state | 3 | |
| Output voltage (absolute max), upper limit VCC + 0.5 | VOUT | -0.5 | V | High (H) or Low (L) state; max printed as VCC + 0.5 | 3 | ||
| Input diode current (absolute max) | IIK | -20 | mA | 3 | |||
| Output diode current (absolute max) | IOK | -20 | 20 | mA | VOUT < GND, VOUT > VCC | 3 | |
| Output current (absolute max) | IOUT | -25 | 25 | mA | 3 | ||
| VCC/ground current (absolute max) | ICC | -75 | 75 | mA | 3 | ||
| Power dissipation (absolute max) | PD | 180 | mW | Ta = -40 to 85; derate -3.25 mW/ from Ta = 85 to 125 down to 50 mW | 3 | ||
| Storage temperature (absolute max) | Tstg | -65 | 150 | °C | 3 | ||
| Supply voltage (recommended operating) | VCC | 4.5 | 5.5 | V | 4 | ||
| Input voltage (recommended operating) | VIN | 0 | 5.5 | V | 4 | ||
| Output voltage (recommended operating) | VOUT | 0 | 5.5 | V | Output in OFF state | 4 | |
| Output voltage (recommended operating), upper limit VCC | VOUT | 0 | V | High (H) or Low (L) state; max printed as VCC | 4 | ||
| Operating temperature | Topr | -40 | 125 | °C | 4 | ||
| Input rise and fall time | dt/dv | 0 | 20 | ns/V | 4 | ||
| High-level input voltage | VIH | 2 | V | VCC = 4.5 to 5.5 V; Ta = 25 | 4 | ||
| Low-level input voltage | VIL | 0.8 | V | VCC = 4.5 to 5.5 V; Ta = 25 | 4 | ||
| High-level output voltage | VOH | 4.4 | 4.5 | V | VIN = VIH or VIL; IOH = -50 µA; VCC = 4.5 V; Ta = 25 | 4 | |
| High-level output voltage | VOH | 3.94 | V | VIN = VIH or VIL; IOH = -8 mA; VCC = 4.5 V; Ta = 25 | 4 | ||
| Low-level output voltage | VOL | 0 | 0.1 | V | VIN = VIH or VIL; IOL = 50 µA; VCC = 4.5 V; Ta = 25 | 4 | |
| Low-level output voltage | VOL | 0.36 | V | VIN = VIH or VIL; IOL = 8 mA; VCC = 4.5 V; Ta = 25 | 4 | ||
| 3-state output OFF-state leakage current | IOZ | -0.25 | 0.25 | µA | VIN = VIH or VIL; VOUT = VCC or GND; VCC = 5.5 V; Ta = 25 | 4 | |
| Input leakage current | IIN | -0.1 | 0.1 | µA | VIN = 5.5 V or GND; VCC = 0 to 5.5 V; Ta = 25 | 4 | |
| Quiescent supply current | ICC | 4 | µA | VIN = VCC or GND; VCC = 5.5 V; Ta = 25 | 4 | ||
| Quiescent supply current (per input, additional) | ICCT | 1.35 | mA | Per input: VIN = 3.4 V; Other input: VCC or GND; VCC = 5.5 V; Ta = 25 | 4 | ||
| Output leakage current (Power-OFF) | IOPD | 0.5 | µA | VOUT = 5.5 V; VCC = 0 V; Ta = 25 | 4 | ||
| High-level output voltage | VOH | 4.4 | V | VIN = VIH or VIL; IOH = -50 µA; VCC = 4.5 V; Ta = -40 to 85 | 4 | ||
| High-level output voltage | VOH | 3.8 | V | VIN = VIH or VIL; IOH = -8 mA; VCC = 4.5 V; Ta = -40 to 85 | 4 | ||
| Low-level output voltage | VOL | 0.1 | V | VIN = VIH or VIL; IOL = 50 µA; VCC = 4.5 V; Ta = -40 to 85 | 4 | ||
| Low-level output voltage | VOL | 0.44 | V | VIN = VIH or VIL; IOL = 8 mA; VCC = 4.5 V; Ta = -40 to 85 | 4 | ||
| 3-state output OFF-state leakage current | IOZ | -2.5 | 2.5 | µA | VIN = VIH or VIL; VOUT = VCC or GND; VCC = 5.5 V; Ta = -40 to 85 | 4 | |
| Input leakage current | IIN | -1 | 1 | µA | VIN = 5.5 V or GND; VCC = 0 to 5.5 V; Ta = -40 to 85 | 4 | |
| Quiescent supply current | ICC | 40 | µA | VIN = VCC or GND; VCC = 5.5 V; Ta = -40 to 85 | 4 | ||
| Quiescent supply current (per input, additional) | ICCT | 1.5 | mA | Per input: VIN = 3.4 V; Other input: VCC or GND; VCC = 5.5 V; Ta = -40 to 85 | 4 | ||
| Output leakage current (Power-OFF) | IOPD | 5 | µA | VOUT = 5.5 V; VCC = 0 V; Ta = -40 to 85 | 4 | ||
| High-level input voltage | VIH | 2 | V | VCC = 4.5 to 5.5 V; Ta = -40 to 125 | 5 | ||
| Low-level input voltage | VIL | 0.8 | V | VCC = 4.5 to 5.5 V; Ta = -40 to 125 | 5 | ||
| High-level output voltage | VOH | 4.4 | V | VIN = VIH or VIL; IOH = -50 µA; VCC = 4.5 V; Ta = -40 to 125 | 5 | ||
| High-level output voltage | VOH | 3.7 | V | VIN = VIH or VIL; IOH = -8 mA; VCC = 4.5 V; Ta = -40 to 125 | 5 | ||
| Low-level output voltage | VOL | 0.1 | V | VIN = VIH or VIL; IOL = 50 µA; VCC = 4.5 V; Ta = -40 to 125 | 5 | ||
| Low-level output voltage | VOL | 0.55 | V | VIN = VIH or VIL; IOL = 8 mA; VCC = 4.5 V; Ta = -40 to 125 | 5 | ||
| 3-state output OFF-state leakage current | IOZ | -10 | 10 | µA | VIN = VIH or VIL; VOUT = VCC or GND; VCC = 5.5 V; Ta = -40 to 125 | 5 | |
| Input leakage current | IIN | -2 | 2 | µA | VIN = 5.5 V or GND; VCC = 0 to 5.5 V; Ta = -40 to 125 | 5 | |
| Quiescent supply current | ICC | 80 | µA | VIN = VCC or GND; VCC = 5.5 V; Ta = -40 to 125 | 5 | ||
| Quiescent supply current (per input, additional) | ICCT | 1.5 | mA | Per input: VIN = 3.4 V; Other input: VCC or GND; VCC = 5.5 V; Ta = -40 to 125 | 5 | ||
| Output leakage current (Power-OFF) | IOPD | 20 | µA | VOUT = 5.5 V; VCC = 0 V; Ta = -40 to 125 | 5 | ||
| Propagation delay time tPLH,tPHL (74VHCT541AFT) | tPLH,tPHL | 5 | 6.9 | ns | VCC = 5.0 ± 0.5 V; CL = 15 pF; RL = 1 kΩ; Ta = 25; tr = tf = 3 ns | 5 | |
| Propagation delay time tPLH,tPHL (74VHCT541AFT) | tPLH,tPHL | 5.5 | 7.9 | ns | VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1 kΩ; Ta = 25; tr = tf = 3 ns | 5 | |
| Propagation delay time tPLH,tPHL (74VHCT541AFT) | tPLH,tPHL | 1 | 8 | ns | VCC = 5.0 ± 0.5 V; CL = 15 pF; RL = 1 kΩ; Ta = -40 to 85; tr = tf = 3 ns | 5 | |
| Propagation delay time tPLH,tPHL (74VHCT541AFT) | tPLH,tPHL | 1 | 9 | ns | VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1 kΩ; Ta = -40 to 85; tr = tf = 3 ns | 5 | |
| Propagation delay time tPLH,tPHL (74VHCT541AFT) | tPLH,tPHL | 1 | 9 | ns | VCC = 5.0 ± 0.5 V; CL = 15 pF; RL = 1 kΩ; Ta = -40 to 125; tr = tf = 3 ns | 6 | |
| Propagation delay time tPLH,tPHL (74VHCT541AFT) | tPLH,tPHL | 1 | 10 | ns | VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1 kΩ; Ta = -40 to 125; tr = tf = 3 ns | 6 | |
| Output skew tosLH,tosHL | tosLH,tosHL | 1 | ns | VCC = 5.0 ± 0.5 V; Ta = 25; parameter guaranteed by design | 5 | ||
| Quiet output maximum dynamic VOL | VOLP | 1.1 | 1.5 | V | CL = 50 pF; VCC = 5.0 V; Ta = 25; tr = tf = 3 ns | 6 | |
| Quiet output minimum dynamic VOL | VOLV | -1.5 | -1.1 | V | CL = 50 pF; VCC = 5.0 V; Ta = 25; tr = tf = 3 ns | 6 | |
| Minimum high-level dynamic input voltage | VIHD | 2 | V | CL = 50 pF; VCC = 5.0 V; Ta = 25; tr = tf = 3 ns | 6 | ||
| Maximum low-level dynamic input voltage | VILD | 0.8 | V | CL = 50 pF; VCC = 5.0 V; Ta = 25; tr = tf = 3 ns | 6 |
CAD (KiCad official)
- Symbol:
74VHCT541AFT - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
74vhct541aft-etched.step/74vhct541aft-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74vhct541aft.step/74vhct541aft.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (8 pp, sha256
3a3485b289292fb2, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).