NXP Semiconductors 74ALVT16241DGG,112

Overview

74ALVT16241DGG,112 from NXP Semiconductors (formerly Philips Semiconductors) is a 16-bit 3-state BiCMOS buffer/driver optimized for 2.5 V or 3.3 V V_CC operation with 5 V I/O tolerance. It features four independent output-enable inputs (1OE–4OE), each controlling four outputs, and delivers ±64 mA/−32 mA drive strength. It is used in high-speed bus interface applications such as memory address/data buffering in industrial control backplanes.

For engineers reviewing the 74ALVT16241DGG,112 datasheet, 74ALVT16241DGG,112 pinout, 74ALVT16241DGG,112 application, or 74ALVT16241DGG,112 equivalent, key selection criteria include 3-state timing (t_PZH/t_PLZ ≤ 3.9 ns at 3.3 V), bus-hold inputs eliminating external pull-ups, and dual-supply compatibility enabling mixed-voltage system interfacing.

Technical Context

The 74ALVT16241DGG,112 implements a quad-grouped 4-bit non-inverting buffer architecture with active-low 3-state control per group. Each output group (Y0–Y3) mirrors its corresponding input group (A0–A3) when its OE signal is asserted low, and enters high-impedance state otherwise.

Its BiCMOS process enables TTL-compatible input thresholds (V_IL ≤ 0.7 V, V_VIH ≥ 1.7 V at 2.5 V; ≥2.0 V at 3.3 V) and rail-to-rail 5 V-tolerant outputs, while maintaining low ICC (≤100 µA disabled) and fast propagation (t_PLH/t_PHL ≤ 2.3 ns typical at 3.3 V).

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1): plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead-free compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVC16244DGGR, the 74ALVT16241DGG,112 provides essential 5 V I/O tolerance and bus-hold for legacy interoperability, while the 74LVT162244ADGG,112 offers identical functionality with marginally higher quiescent current - both serve as viable alternatives depending on voltage architecture and qualification needs.

Availability

74ALVT16241DGG,112 is available at Aetrix Electronics and suitable for industrial backplane buffering, memory interface translation, hot-pluggable module design, and legacy voltage bridging requiring stable component supply across extended product lifecycles.

Supply support for 74ALVT16241DGG,112 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, formerly Philips Semiconductors, designs high-reliability logic and interface ICs for industrial, automotive, and communications infrastructure.

The 74ALVT16241DGG,112 belongs to the ALVT (Advanced Low-Voltage Technology) logic family, engineered specifically for high-speed, low-power 2.5 V/3.3 V bus interfacing with backward 5 V compatibility in mission-critical industrial systems.

FAQ

What is the maximum allowable input voltage for 74ALVT16241DGG,112 when operating at 2.5 V V_CC?

The 74ALVT16241DGG,112 supports input voltages up to 5.5 V regardless of V_CC level. This 5 V tolerance is guaranteed by internal clamp diodes and is explicitly specified in Table 6 (Limiting Values) and Table 7 (Recommended Operating Conditions). The 74ALVT16241DGG,112 can safely interface with 5 V signals while powered from 2.5 V without external protection circuitry.

Does 74ALVT16241DGG,112 require external pull-up resistors on unused inputs?

No. The 74ALVT16241DGG,112 integrates bus-hold circuitry on all data inputs (A0–A15), providing ±70 µA to ±140 µA overdrive current to maintain valid logic states on floating inputs. This eliminates the need for external pull-up or pull-down resistors, reducing BOM count and PCB area. The feature is confirmed in Section 2 (Features) and Table 8 (Static Characteristics, IHOLD parameter).

What is the typical propagation delay of 74ALVT16241DGG,112 at 3.3 V supply?

At V_CC = 3.3 V and C_L = 50 pF, the typical propagation delay (t_PLH and t_PHL) of the 74ALVT16241DGG,112 is 1.6 ns, with a maximum of 2.3 ns. This value is documented in Table 1 (Quick Reference Data) and Table 9 (Dynamic Characteristics) of the datasheet, confirming its suitability for sub-5 ns timing-critical bus applications.

How many ground and supply pins does 74ALVT16241DGG,112 have in its TSSOP48 package?

The 74ALVT16241DGG,112 in TSSOP48 (SOT362-1) has eight ground (GND) pins (Pins 4, 10, 15, 21, 28, 34, 39, 45) and four V_CC pins (Pins 7, 18, 31, 42). This distributed power/ground configuration minimizes impedance, suppresses ground bounce, and improves signal integrity in high-speed 16-bit bus applications - as shown in Figure 3 (Pin Configuration) and Table 3 (Pin Description).

Is 74ALVT16241DGG,112 rated for industrial temperature range?

Yes. The 74ALVT16241DGG,112 is qualified for operation from −40 °C to +85 °C, as stated in Table 2 (Ordering Information) and Table 7 (Recommended Operating Conditions). This full industrial temperature range ensures reliable performance in harsh environments such as factory automation, motor drives, and outdoor control cabinets.