NXP Semiconductors 74LV541DB,118

Overview

74LV541DB,118 from NXP Semiconductors is an octal non-inverting 3-state buffer/line driver in SSOP20 package, operating from 1.0 V to 3.6 V supply, with dual active-low output enable inputs (OE1, OE2), −40 °C to +125 °C temperature range, and TTL-level input compatibility at VCC ≥ 2.7 V. It serves as a bidirectional bus interface or data isolation element in low-voltage digital systems.

For engineers reviewing the 74LV541DB,118 datasheet, 74LV541DB,118 pinout, 74LV541DB,118 application, or 74LV541DB,118 equivalent, key selection criteria include supply voltage flexibility (1.0–3.6 V), guaranteed 3-state timing performance across industrial and extended temperature ranges, output drive capability (±8 mA at 3.0 V), and SSOP20 footprint compatibility with space-constrained PCB layouts.

Technical Context

The 74LV541DB,118 implements eight independent non-inverting buffer channels, each with high-impedance (Z) output control via two shared active-low enables (OE1, OE2). Its Si-gate CMOS architecture ensures pin and functional compatibility with 74HC541 and 74HCT541 while enabling operation down to 1.0 V.

Logic behavior follows a strict functional table: outputs Y0–Y7 enter high-impedance state when either OE1 or OE2 is HIGH; only when both enables are LOW do outputs replicate inputs A0–A7. Propagation delay is specified from 10 ns (VCC = 3.3 V, CL = 15 pF) to 60 ns (VCC = 1.2 V), with enable/disable times tightly bounded across voltage and temperature.

Key Specifications

Pinout & Package

74LV541DB,118 is housed in a plastic shrink small outline package (SSOP20) per SOT339-1, with 20 leads, 0.65 mm lead pitch, and 5.3 mm body width - optimized for high-density PCB layouts requiring thermal and mechanical reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal buffer/line driver applications.

Compared with 74LV541DB,118, the 74LV541PW,118 offers superior space efficiency in high-density layouts, while the SN74LV541APWRE4 provides alternate automotive qualification-neither is pin-compatible without footprint adjustment, but all three share identical logic behavior and core timing specifications.

Availability

74LV541DB,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, embedded test equipment interfaces, and low-power sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LV541DB,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The 74LV541DB,118 belongs to NXP's LV logic family, designed specifically for low-voltage interoperability between next-generation processors and legacy peripherals while maintaining robust noise immunity and wide temperature operation.

FAQ

What is the minimum supply voltage at which 74LV541DB,118 guarantees correct logic operation?

The 74LV541DB,118 guarantees full static and dynamic functionality down to 1.0 V supply voltage, with input thresholds referenced to GND or VCC. At VCC = 1.0 V, inputs are interpreted as HIGH when VI ≥ VCC and LOW when VI = GND - enabling direct use with emerging ultra-low-power microcontrollers and energy-harvesting systems. This specification is confirmed in Table 5 of the NXP datasheet Rev. 03.

Does 74LV541DB,118 support TTL-level input signals when powered at 3.3 V?

Yes, 74LV541DB,118 accepts TTL input levels when VCC is between 2.7 V and 3.6 V. Specifically, VIH is guaranteed ≥ 2.0 V and VIL ≤ 0.8 V under those conditions, matching standard TTL output swing (2.4–3.5 V HIGH, 0–0.8 V LOW). This allows direct connection to 5 V TTL devices without level-shifting circuitry, as documented in Table 6 of the NXP datasheet.

How does the dual output enable (OE1 and OE2) functionality work in 74LV541DB,118?

In 74LV541DB,118, both OE1 (pin 1) and OE2 (pin 19) are active-low enables. Outputs Y0–Y7 enter high-impedance state if *either* OE1 or OE2 is HIGH; they only drive A0–A7 when *both* enables are LOW. This OR logic enables flexible bus control - for example, OE1 can serve as primary enable while OE2 acts as fault override, or both can be tied together for standard 3-state operation. The functional table in Section 6 confirms this behavior.

What is the maximum capacitive load 74LV541DB,118 can drive while maintaining specified propagation delay?

The 74LV541DB,118 is characterized for propagation delay (tpd) with a 15 pF load at VCC = 3.0–3.6 V, yielding 10–23 ns typical-to-max. While it can drive heavier loads (e.g., 50 pF), delay increases significantly - up to 27 ns max at 50 pF per Table 7. For timing-critical applications, 15 pF represents the verified load condition; heavier loads require empirical validation of setup/hold margins in the target system.

Is 74LV541DB,118 RoHS compliant and halogen-free?

Yes, 74LV541DB,118 complies with EU RoHS Directive 2011/65/EU and is halogen-free per NXP's material declarations. The SSOP20 package (SOT339-1) uses lead-free matte tin terminations and green molding compound. Full compliance documentation, including substance declarations and test reports, is available through NXP's Quality Portal using the part number 74LV541DB,118.