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NXP Semiconductors 74HCT541D118 — Logic ICs
NXP Semiconductors

74HCT541D118 Buffer, Non-Inverting, 3-State, 20-SOIC

MPN74HCT541D118
End of Life

74HCT541D118, Series 74HCT, Logic Type Buffer Non-Inverting, Output Type 3-State, 8-bit per element, 1 element, 4.5V~5.5V supply, -40°C to 125°C, 20-SOIC (7.50mm width), Surface Mount.

$0.22Ref. price · indicative, final on quote
74HCT541D118 datasheet
Packaging20-SOIC (0.295", 7.50mm Width)
StockContact for availability
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Specifications

74HCT541D118 Technical Specifications
ParameterValue
Series74HCT
Logic typeBuffer, Non-Inverting
Output type3-State
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - output high, low6mA, 6mA
Operating temperature-40°C ~ 125°C (TA)
PackageBulk
Case20-SOIC (0.295\", 7.50mm Width)
Number of elements1
Number of bits per element8

Product details

The 74HCT541D118 is an 8-bit non-inverting buffer with 3-state outputs from the 74HCT logic family, in a 20-SOIC wide-body (7.50 mm) surface-mount package.

The 6 mA source and 6 mA sink capability per output is typical for HCT buffers — enough to drive a few CMOS or TTL loads directly, but not a high-current backplane. If your bus needs more fan-out, plan on a separate line driver stage. The 3-state outputs allow multiple buffers to share a common bus line when the output-enable control is wired correctly, which is the usual use case for address or data bus isolation.

Package and mounting reality for the PCB layout engineer

The 20-SOIC wide-body (0.295", 7.50 mm width) footprint is common across many 74HCT and 74HC octal buffers — the same land pattern works for the 74HCT540 (inverting version) and the 74HC541 if you ever cross-ship. The supplier device package is 20-SO, so the standard SOIC-20 wide footprint applies. Surface-mount only; no through-hole variant in this order code.

Lifecycle and sourcing posture

It is a current-production item in the Nexperia 74HCT portfolio.

Frequently asked questions

What is the difference between 74HCT541D118 and 74HC541D118?

The 74HCT541D118 uses HCT logic levels (TTL-compatible input thresholds at 5 V supply), while the 74HC541D118 uses HC logic levels (CMOS thresholds). If your upstream driver is a 5 V TTL output, the HCT variant guarantees correct input recognition; the HC variant may not. Both are 8-bit non-inverting buffers with 3-state outputs in the same 20-SOIC package.

What is the equivalent for 74HCT541D118?

The closest pin-compatible alternative is the 74HCT540D118, which is the inverting version of the same octal buffer. For a non-inverting equivalent, the 74HC541D118 (same footprint, HC logic levels) or the 74HCT541PW (TSSOP-20 package) are functional alternatives, though the logic family or package differs.