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74VHCT541BQ
Public Made by Adomby adom
Nexperia Buffers, Drivers, Receivers, Transceivers, DHVQFN-20-EP(2.5x4.5). 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
markdown74VHCT541BQ
Nexperia · Buffers, Drivers, Receivers, Transceivers · DHVQFN-20-EP(2.5x4.5)
74VHCT541BQ from Nexperia, in a DHVQFN-20-EP(2.5x4.5). 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 | OE0 | input | Active-LOW output enable; outputs Y0 to Y7 are enabled only when OE0 and OE1 are both LOW, and a HIGH on OE0 forces them to high-impedance (Z). |
| 2 | A0 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 3 | A1 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 4 | A2 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 5 | A3 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 6 | A4 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 7 | A5 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 8 | A6 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 9 | A7 | input | Data input with Schmitt-trigger action; it may be driven above VCC, with a recommended input voltage range of 0 V to 5.5 V. |
| 10 | GND | power_in | Ground (0 V) reference for all voltages; ground current is limited to -75 mA (Table 4). The exposed thermal pad is not this pin and is not numbered in the datasheet. |
| 11 | Y7 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 12 | Y6 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 13 | Y5 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 14 | Y4 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 15 | Y3 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 16 | Y2 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 17 | Y1 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 18 | Y0 | tri_state | 3-state data output that is high-impedance when OE0 or OE1 is HIGH; output current is limited to ±25 mA. |
| 19 | OE1 | input | Active-LOW output enable; outputs Y0 to Y7 are enabled only when OE0 and OE1 are both LOW, and a HIGH on OE1 forces them to high-impedance (Z). |
| 20 | VCC | power_in | Supply voltage; 2.0 V to 5.5 V for 74VHC541 and 4.5 V to 5.5 V for 74VHCT541 (Table 5). |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | DHVQFN-20-EP(2.5x4.5) |
| Category | Logic |
| Pins | 21 |
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 maximum) | VCC | -0.5 | 7 | V | 4 | ||
| Input voltage (absolute maximum) | VI | -0.5 | 7 | V | 4 | ||
| Input clamping current | IIK | -20 | mA | VI < -0.5 V | 4 | ||
| Output clamping current | IOK | -20 | 20 | mA | VO < -0.5 V or VO > VCC + 0.5 V | 4 | |
| Output current | IO | -25 | 25 | mA | VO = -0.5 V to (VCC + 0.5 V) | 4 | |
| Supply current | ICC | 75 | mA | 4 | |||
| Ground current | IGND | -75 | mA | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Total power dissipation | Ptot | 500 | mW | Tamb = -40 °C to +125 °C | 4 | ||
| Supply voltage (recommended, 74VHCT541) | VCC | 4.5 | 5 | 5.5 | V | 4 | |
| Input voltage (recommended) | VI | 0 | 5.5 | V | 4 | ||
| Output voltage (recommended) | VO | 0 | V | 4 | |||
| Ambient temperature (recommended) | Tamb | -40 | 25 | 125 | °C | 4 | |
| Input transition rise and fall rate | Δt/ΔV | 20 | ns/V | VCC = 5.0 V ± 0.5 V | 4 | ||
| HIGH-level input voltage | VIH | 2 | V | VCC = 4.5 V to 5.5 V; Tamb = 25 °C | 6 | ||
| LOW-level input voltage | VIL | 0.8 | V | VCC = 4.5 V to 5.5 V; Tamb = 25 °C | 6 | ||
| HIGH-level output voltage | VOH | 4.4 | 4.5 | V | VI = VIH or VIL; VCC = 4.5 V; IO = -50 μA; Tamb = 25 °C | 6 | |
| HIGH-level output voltage | VOH | 4.4 | V | VI = VIH or VIL; VCC = 4.5 V; IO = -50 μA; Tamb = -40 °C to +85 °C | 6 | ||
| HIGH-level output voltage | VOH | 3.94 | V | VI = VIH or VIL; VCC = 4.5 V; IO = -8.0 mA; Tamb = 25 °C | 6 | ||
| HIGH-level output voltage | VOH | 3.8 | V | VI = VIH or VIL; VCC = 4.5 V; IO = -8.0 mA; Tamb = -40 °C to +85 °C | 6 | ||
| HIGH-level output voltage | VOH | 3.7 | V | VI = VIH or VIL; VCC = 4.5 V; IO = -8.0 mA; Tamb = -40 °C to +125 °C | 6 | ||
| LOW-level output voltage | VOL | 0 | 0.1 | V | VI = VIH or VIL; VCC = 4.5 V; IO = 50 μA; Tamb = 25 °C | 6 | |
| LOW-level output voltage | VOL | 0.1 | V | VI = VIH or VIL; VCC = 4.5 V; IO = 50 μA; Tamb = -40 °C to +85 °C | 6 | ||
| LOW-level output voltage | VOL | 0.36 | V | VI = VIH or VIL; VCC = 4.5 V; IO = 8.0 mA; Tamb = 25 °C | 6 | ||
| LOW-level output voltage | VOL | 0.44 | V | VI = VIH or VIL; VCC = 4.5 V; IO = 8.0 mA; Tamb = -40 °C to +85 °C | 6 | ||
| LOW-level output voltage | VOL | 0.55 | V | VI = VIH or VIL; VCC = 4.5 V; IO = 8.0 mA; Tamb = -40 °C to +125 °C | 6 | ||
| OFF-state output current | IOZ | -0.25 | 0.25 | μA | VI = VIH or VIL; VO = VCC or GND; VCC = 5.5 V; Tamb = 25 °C | 6 | |
| OFF-state output current | IOZ | -2.5 | 2.5 | μA | VI = VIH or VIL; VO = VCC or GND; VCC = 5.5 V; Tamb = -40 °C to +85 °C | 6 | |
| OFF-state output current | IOZ | -10 | 10 | μA | VI = VIH or VIL; VO = VCC or GND; VCC = 5.5 V; Tamb = -40 °C to +125 °C | 6 | |
| Input leakage current | II | 0.1 | μA | VI = VCC or GND; VCC = 0 V to 5.5 V; Tamb = 25 °C | 6 | ||
| Input leakage current | II | 1 | μA | VI = VCC or GND; VCC = 0 V to 5.5 V; Tamb = -40 °C to +85 °C | 6 | ||
| Input leakage current | II | 2 | μA | VI = VCC or GND; VCC = 0 V to 5.5 V; Tamb = -40 °C to +125 °C | 6 | ||
| Supply current | ICC | 4 | μA | VI = VCC or GND; IO = 0 A; VCC = 5.5 V; Tamb = 25 °C | 6 | ||
| Supply current | ICC | 40 | μA | VI = VCC or GND; IO = 0 A; VCC = 5.5 V; Tamb = -40 °C to +85 °C | 6 | ||
| Supply current | ICC | 80 | μA | VI = VCC or GND; IO = 0 A; VCC = 5.5 V; Tamb = -40 °C to +125 °C | 6 | ||
| Additional supply current | ΔICC | 1.35 | mA | per input pin; VI = VCC - 2.1 V; IO = 0 A; other pins at VCC or GND; VCC = 4.5 V to 5.5 V; Tamb = 25 °C | 6 | ||
| Additional supply current | ΔICC | 1.5 | mA | per input pin; VI = VCC - 2.1 V; IO = 0 A; other pins at VCC or GND; VCC = 4.5 V to 5.5 V; Tamb = -40 °C to +85 °C | 6 | ||
| Input capacitance | CI | 3 | 10 | pF | Tamb = 25 °C | 6 | |
| Input capacitance | CI | 10 | pF | Tamb = -40 °C to +85 °C | 6 | ||
| Propagation delay An to Yn | tpd | 3.5 | 5.5 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = 25 °C | 8 | |
| Propagation delay An to Yn | tpd | 1 | 6.5 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = -40 °C to +85 °C | 8 | |
| Propagation delay An to Yn | tpd | 1 | 7 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = -40 °C to +125 °C | 8 | |
| Propagation delay An to Yn | tpd | 5 | 8.5 | ns | VCC = 4.5 V to 5.5 V; CL = 50 pF; Tamb = 25 °C | 8 | |
| Propagation delay An to Yn | tpd | 1 | 9.5 | ns | VCC = 4.5 V to 5.5 V; CL = 50 pF; Tamb = -40 °C to +85 °C | 8 | |
| Propagation delay An to Yn | tpd | 1 | 11 | ns | VCC = 4.5 V to 5.5 V; CL = 50 pF; Tamb = -40 °C to +125 °C | 8 | |
| Enable time OEn to Yn | ten | 4 | 7 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = 25 °C | 8 | |
| Enable time OEn to Yn | ten | 1 | 8 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = -40 °C to +85 °C | 8 | |
| Enable time OEn to Yn | ten | 1 | 9 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = -40 °C to +125 °C | 8 | |
| Disable time OEn to Yn | tdis | 5 | 7 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = 25 °C | 8 | |
| Disable time OEn to Yn | tdis | 1 | 8 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = -40 °C to +85 °C | 8 | |
| Disable time OEn to Yn | tdis | 1 | 9 | ns | VCC = 4.5 V to 5.5 V; CL = 15 pF; Tamb = -40 °C to +125 °C | 8 |
CAD (KiCad official)
- Symbol:
74VHCT541BQ - Footprint:
Package_DFN_QFN:DHVQFN-20-1EP_2.5x4.5mm_P0.5mm_EP1x3mm - 3D model: DHVQFN-20-EP(2.5x4.5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal VQFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
74vhct541bq-etched.step/74vhct541bq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74vhct541bq.step/74vhct541bq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (16 pp, sha256
996dee2efa342abf, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).