Texas Instruments SN74ABT16241ADLRG4

Overview

SN74ABT16241ADLRG4 from Texas Instruments is a 16-bit noninverting buffer/driver with 3-state outputs, designed for high-density bus interfacing in memory address, clock distribution, and data bus applications. It features ±32-mA high-drive outputs, distributed V_CC/GND pinning to suppress switching noise, and operates across –40°C to 85°C at 4.5–5.5 V supply. Its flow-through architecture simplifies PCB layout in space-constrained industrial control and telecom backplane designs.

For engineers reviewing the SN74ABT16241ADLRG4 datasheet, SN74ABT16241ADLRG4 pinout, SN74ABT16241ADLRG4 application, or SN74ABT16241ADLRG4 equivalent, key selection criteria include output drive strength (–32 mA/64 mA), 3-state enable timing (t_PZH ≤ 5.0 ns), ground bounce performance (<1 V VOLP), and SSOP-48 package compatibility with legacy 300-mil footprint layouts.

Technical Context

This device implements four independent 4-bit buffer sections, each with true output logic and dual complementary output-enable inputs (OE/OE). Its EPIC-II^B BiCMOS process enables low power dissipation while maintaining TTL-compatible input thresholds (V_IL = 0.8 V, V_VIH = 2.0 V) and rail-to-rail output swing under heavy load.

The distributed power/ground pin configuration minimizes simultaneous switching noise, and the flow-through pinout-inputs on one side, outputs on the opposite-eliminates layer-crossing traces. Latch-up immunity exceeds 500 mA per JESD17, and ESD protection meets 2000 V HBM and 200 V machine model standards.

Key Specifications

Pinout & Package

SN74ABT16241ADLRG4 is housed in a 48-pin Shrink Small-Outline Package (SSOP-DL), 300-mil body width, 0.5-mm pitch, with 1.2-mm max height and JEDEC MO-153 compliance. Pin 1 marked via corner chamfer; tape-and-reel packaging (1000 pcs/reel).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ABT16244ADLRG4, the SN74ABT16241ADLRG4 preserves signal polarity critical for address/data integrity; versus SN74LVC16244ADGGR, it maintains full 5-V TTL interoperability and higher drive for legacy industrial backplanes - making it the sole choice where 5-V noise margin and true buffering are mandatory.

Availability

SN74ABT16241ADLRG4 is available at Aetrix Electronics and suitable for industrial control systems, telecom infrastructure equipment, and legacy bus expansion modules requiring stable component supply, long-lifecycle support, and RoHS-compliant SSOP packaging.

Supply support for SN74ABT16241ADLRG4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability interface and bus technology.

The ABT logic family-including SN74ABT16241ADLRG4-is engineered for demanding 5-V bus applications requiring high drive, low noise, and industrial temperature resilience, particularly in memory, clock, and data-path subsystems.

FAQ

What is the maximum output current rating for SN74ABT16241ADLRG4?

The SN74ABT16241ADLRG4 supports –32 mA high-level output current (IOH) and 64 mA low-level output current (IOL) under recommended operating conditions. These values are specified at VCC = 4.5 V and ensure reliable driving of heavy capacitive or fanout loads without exceeding thermal limits in the SSOP-48 package.

Does SN74ABT16241ADLRG4 support mixed-voltage operation?

No, SN74ABT16241ADLRG4 is strictly a 5-V device with recommended supply range 4.5 V to 5.5 V. Its inputs are TTL-compatible (VIH = 2.0 V min), but it is not 3.3-V tolerant. Applying 3.3-V signals to inputs is acceptable only if they meet the 0.8 V VIL and 2.0 V VIH thresholds; however, the device itself must be powered at 5 V.

How should unused inputs be handled on SN74ABT16241ADLRG4?

All unused inputs on SN74ABT16241ADLRG4 must be tied to either VCC or GND to prevent floating nodes that cause increased ICC, noise susceptibility, or erratic behavior. TI recommends using pullup/pulldown resistors sized per the driver's current-sourcing/sinking capability - typically 1–10 kΩ - especially for OE inputs to ensure defined high-impedance state during power sequencing.

Is SN74ABT16241ADLRG4 pin-compatible with older 74-series buffers?

SN74ABT16241ADLRG4 uses a proprietary 48-pin SSOP (DL) pinout optimized for flow-through routing and noise reduction, differing from legacy 24-pin DIP/SOIC packages like 74F244. While functionally equivalent to quad 4-bit buffers, it is not mechanically or electrically pin-compatible with those devices due to pin count, spacing, and terminal assignment differences.

What thermal considerations apply to SN74ABT16241ADLRG4 in continuous operation?

With θJA = 94°C/W in the DL package, SN74ABT16241ADLRG4 requires careful thermal management under full-load conditions. At 34 mA ICC (max active current) and 64 mA IOL per output, junction temperature rise can exceed safe limits in enclosed, still-air environments above 60°C ambient - derating or forced airflow is advised for sustained 16-bit bus driving at 5.5 V.