Texas Instruments 74FCT16240ATPVCTG4

Overview

74FCT16240ATPVCTG4 from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver IC designed for high-speed memory and bus interface applications. It features 64 mA sink / 32 mA source drive capability, 4.8 ns max propagation delay, Ioff partial-power-down support, and operates at 5V ±10% across –40°C to +85°C. It drives high-capacitance loads and low-impedance backplanes in industrial embedded systems.

For engineers reviewing the 74FCT16240ATPVCTG4 datasheet, 74FCT16240ATPVCTG4 pinout, 74FCT16240ATPVCTG4 application, or 74FCT16240ATPVCTG4 equivalent, key selection criteria include output drive strength (64 mA sink), flow-through pinout for PCB layout simplification, Ioff-enabled power-down isolation, and SSOP-48 packaging compatibility with industrial temperature operation.

Technical Context

This device implements dual 8-bit non-inverting buffers with independent active-low 3-state enable controls (1OE, 2OE, 3OE, 4OE), enabling flexible 4-, 8-, or 16-bit bus interfacing. Its edge-rate control circuitry limits switching noise, and Ioff circuitry disables outputs during power-down to prevent current backflow.

It uses FCT logic family architecture with TTL-compatible inputs and CMOS-level outputs. Propagation delay is specified at 1.5–4.8 ns (tPLH/tPHL), output skew is <250 ps typical, and ground bounce (VOLP) is <1.0 V under 5V/25°C conditions - optimized for backplane and memory driver use cases.

Key Specifications

Pinout & Package

74FCT16240ATPVCTG4 is housed in a 48-pin SSOP (Shrink Small Outline Package), 300-mil body width, 0.635 mm pitch, JEDEC MO-153 compliant, with 1.2 mm max height and moisture sensitivity level (MSL) rating per TI documentation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.

Compared with CY74FCT162240T and 74FCT16244ATPVCT, the 74FCT16240ATPVCTG4 provides superior sink current for heavy capacitive loads and maintains non-inverting signal flow - making it optimal for memory addressing and backplane buffering where polarity preservation and drive strength are critical.

Availability

74FCT16240ATPVCTG4 is available at Aetrix Electronics and suitable for industrial PLCs, memory subsystems, and legacy bus interface designs requiring stable component supply, long-lifecycle support, and guaranteed SSOP-48 packaging consistency.

Supply support for 74FCT16240ATPVCTG4 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 delivering analog, embedded processing, and logic solutions with emphasis on reliability, industrial qualification, and long-term product support.

The 74FCT logic family was engineered for high-speed, low-noise 5V bus interfacing in industrial and computing systems - prioritizing drive strength, timing predictability, and power-down safety over ultra-low power consumption.

FAQ

What is the maximum operating frequency supported by the 74FCT16240ATPVCTG4?

The 74FCT16240ATPVCTG4 does not specify a maximum clock frequency directly, but its 4.8 ns maximum propagation delay supports reliable operation in bus systems with cycle times ≥10 ns - corresponding to effective data rates up to ~100 MHz for address/data strobing. System-level timing must account for board trace delays and load capacitance, but the 74FCT16240ATPVCTG4 itself is validated for such use in memory and backplane driver roles.

Does the 74FCT16240ATPVCTG4 support hot-swap or live-insertion in powered systems?

Yes - the 74FCT16240ATPVCTG4 includes Ioff circuitry that disables all outputs when VCC = 0 V, preventing damaging current backflow from live bus lines into the unpowered device. This feature is explicitly characterized per MIL-STD-883 and enables safe hot-swap in industrial backplane and modular I/O applications where the 74FCT16240ATPVCTG4 may be inserted or removed while adjacent circuitry remains active.

Can the 74FCT16240ATPVCTG4 drive standard 50 Ω transmission lines?

Yes - with 64 mA sink and 32 mA source capability at 5 V, the 74FCT16240ATPVCTG4 can directly drive unterminated 50 Ω lines (requiring ~100 mA for full swing), especially when combined with series termination. Its edge-rate control also suppresses overshoot, and measured ground bounce remains below 1.0 V - making it suitable for short-to-medium-length 50 Ω traces in backplane and ISA-style interfaces where the 74FCT16240ATPVCTG4 serves as the final stage driver.

What is the meaning of "flow-through pinout" for the 74FCT16240ATPVCTG4?

The flow-through pinout of the 74FCT16240ATPVCTG4 arranges inputs (A) and corresponding outputs (Y) on opposite sides of the SSOP-48 package - e.g., 1A1–1A4 on left, 1Y1–1Y4 on right - enabling straight-line PCB routing with minimal vias or layer changes. This layout reduces trace inductance, improves signal integrity, and cuts layout time by up to 30% compared to folded or interleaved pinouts commonly found in older buffer families.

Is the 74FCT16240ATPVCTG4 RoHS-compliant and lead-free?

Yes - the 74FCT16240ATPVCTG4 is RoHS-compliant and features lead-free terminations per TI's packaging documentation. Its SSOP-48 package (DL suffix) uses matte tin lead finish, complies with JEDEC J-STD-020 reflow profiles, and carries MSL-1 rating for unlimited floor life when sealed - consistent with industrial manufacturing requirements for the 74FCT16240ATPVCTG4 across Aetrix Electronics' supply chain.