NXP Semiconductors 74ALVT16241DL,118

Overview

74ALVT16241DL,118 from NXP Semiconductors (formerly Philips) is a 16-bit 3-state BiCMOS buffer/driver with four independent output-enable inputs (1OE–4OE), designed for V_CC operation at 2.5 V or 3.3 V and 5 V I/O tolerance. It delivers ±64 mA/−32 mA drive strength, supports live insertion/extraction, and features bus-hold inputs to eliminate external pull-ups. It is used in high-speed bus interface applications such as memory address/data buffering in industrial control backplanes.

For engineers reviewing the 74ALVT16241DL,118 datasheet, 74ALVT16241DL,118 pinout, 74ALVT16241DL,118 application, or 74ALVT16241DL,118 equivalent, key selection criteria include 3-state timing (t_PZH/t_PLZ ≤ 5.1 ns @ 2.5 V), 5 V-tolerant inputs/outputs, bus-hold functionality, and SSOP48 package compatibility with legacy 74-series logic layouts.

Technical Context

The 74ALVT16241DL,118 implements a quad-grouped 4-bit 3-state buffer architecture, where each OE input controls four corresponding Y outputs (e.g., 1OE enables 1Y0–1Y3). Its BiCMOS process enables TTL-compatible input thresholds (V_IL ≤ 0.7 V @ 2.5 V, V_IL ≤ 0.8 V @ 3.3 V) and rail-to-rail 5 V I/O interface capability without level shifters.

It integrates power-up 3-state behavior (IPU ≤ ±100 µA during V_CC ramp), latch-up immunity (>500 mA per JESD78), and ESD protection exceeding 2000 V (MIL-STD-883) and 200 V (machine model). Bus-hold current (±130 µA @ 3 V) actively maintains valid logic states on unused data inputs.

Key Specifications

Pinout & Package

74ALVT16241DL,118 is housed in a plastic shrink small outline package (SSOP48) with 48 leads, 7.5 mm body width, and 0.5 mm lead pitch (SOT370-1). The package is RoHS-compliant and rated for −40 °C to +85 °C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.

Compared with SN74ALVC16244DGGR and 74LVT162244ADGG,118, the 74ALVT16241DL,118 uniquely combines quad-group 3-state control, 5 V I/O tolerance, bus-hold, and ±64 mA drive-making it optimal for high-reliability, mixed-voltage backplane designs requiring minimal external components.

Availability

74ALVT16241DL,118 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystem buffering, hot-swappable module interconnects, and legacy bus extension applications requiring stable component supply across extended temperature ranges.

Supply support for 74ALVT16241DL,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 leader delivering high-performance analog, logic, and interface solutions for industrial, automotive, and communications markets.

The 74ALVT family was developed specifically for high-speed, mixed-voltage bus interface applications demanding 5 V tolerance, low skew, and robust hot-swap capability in space-constrained industrial systems.

FAQ

What is the maximum allowable input voltage for 74ALVT16241DL,118 when operating at 2.5 V V_CC?

The 74ALVT16241DL,118 supports input voltages up to 5.5 V regardless of V_CC level, enabling direct connection to 5 V logic without level shifting. This is confirmed in Table 7 (Recommended Operating Conditions) and Table 6 (Limiting Values), where VI max = +7.0 V and recommended VI max = 5.5 V under all V_CC conditions. The device's 5 V I/O compatibility is a core design feature of the ALVT family.

Does 74ALVT16241DL,118 require external pull-up resistors on unused data inputs?

No, 74ALVT16241DL,118 does not require external pull-up resistors because it integrates bus-hold circuitry on all data inputs (1A0–1A3, 2A0–2A3, etc.). As specified in Table 8, IHOLD is ±130 µA at 3 V, actively maintaining valid logic states. This eliminates floating inputs and reduces BOM count-confirmed in Section 2 (Features) and Static Characteristics.

What is the typical propagation delay of 74ALVT16241DL,118 at 3.3 V V_CC with 50 pF load?

At V_CC = 3.3 V and C_L = 50 pF, the typical propagation delay (t_PLH/t_PHL) of 74ALVT16241DL,118 is 1.6 ns, with a maximum of 2.3 ns. This value is explicitly listed in Table 1 (Quick Reference Data) and Table 9 (Dynamic Characteristics) of the datasheet, reflecting its high-speed BiCMOS architecture optimized for sub-2 ns timing.

Can 74ALVT16241DL,118 be used in hot-swap applications?

Yes, 74ALVT16241DL,118 is explicitly qualified for live insertion and extraction, as stated in Section 2 (Features). Its power-up 3-state behavior (IPU ≤ ±100 µA), latch-up immunity (>500 mA), and ESD protection (>2000 V HBM) ensure safe operation during hot-swap events-validated per JEDEC standards and documented in Tables 8 and 6.

What package type is used for 74ALVT16241DL,118 and what are its key mechanical dimensions?

74ALVT16241DL,118 uses the SSOP48 package (SOT370-1) with 48 leads, 7.5 mm body width, and 0.5 mm lead pitch. Key dimensions include overall length 16.0 mm, width 7.6 mm, and height 2.35 mm (max), per Figure 7 and Table 13. This shrink small-outline package enables high-density routing while maintaining compatibility with standard 0.5 mm pitch reflow processes.