Texas Instruments 74FCT16244ATPVCG4

Overview

74FCT16244ATPVCG4 from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver designed for high-speed memory and bus interface applications. It delivers 64 mA sink and 32 mA source drive capability, supports partial-power-down via Ioff, operates at 5V ±10%, and features typical output skew <250 ps. It is used in backplane driving and clock distribution systems requiring low ground bounce and noise immunity.

For engineers reviewing the 74FCT16244ATPVCG4 datasheet, 74FCT16244ATPVCG4 pinout, 74FCT16244ATPVCG4 application, or 74FCT16244ATPVCG4 equivalent, key selection criteria include its 4.8 ns max propagation delay (tPLH/tPHL), 8.0 ns max output enable time (tPZH/tPZL), industrial temperature range (–40°C to +85°C), TSSOP-48 package, and compatibility with TTL/CMOS input logic levels.

Technical Context

This device implements four independent 4-bit groups of non-inverting buffers, each with dedicated active-low three-state output enable (OE) control, enabling flexible 4-bit, 8-bit, or full 16-bit bus operation. Its flow-through pinout minimizes trace routing complexity on dense PCBs.

The 74FCT16244ATPVCG4 integrates edge-rate control circuitry to suppress switching noise and reduce ground bounce (typical VOLP <1.0 V), while its Ioff protection disables outputs during power-down to prevent current backflow. It is fully specified for 5-V operation with VIH = 2.0 V and VIL = 0.8 V.

Key Specifications

Pinout & Package

74FCT16244ATPVCG4 is housed in a 48-pin TSSOP (Thin Shrunk Small Outline Package), 240-mil body width, 0.5-mm pitch, 1.2-mm max height, JEDEC MO-153 compliant. Pin 1 marked by beveled corner or dot; pin 1 ID area located at top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY74FCT16244CTPVC, the 74FCT16244ATPVCG4 offers faster enable/disable timing (8.0 ns vs. 5.8 ns) but higher drive; versus 74FCT162244ATPVCT, it trades lower noise for greater load-driving headroom-making it ideal for backplane and memory buffering where capacitance dominates.

Availability

74FCT16244ATPVCG4 is available at Aetrix Electronics and suitable for memory subsystems, industrial backplanes, FPGA interface circuits, and legacy bus expansion requiring stable component supply and long-term industrial qualification.

Supply support for 74FCT16244ATPVCG4 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 experience in high-reliability industrial and automotive ICs.

The 74FCT16244ATPVCG4 belongs to TI's FCT logic family, engineered for high-speed, low-noise 5-V bus interfacing in mission-critical industrial and communications infrastructure.

FAQ

What is the maximum operating frequency supported by the 74FCT16244ATPVCG4?

The 74FCT16244ATPVCG4 does not specify a maximum clock frequency directly, but its 4.8 ns max propagation delay and 8.0 ns max output enable time imply reliable operation in systems with data rates up to ~200 MHz for short trace lengths. Actual usable frequency depends on load capacitance, PCB layout, and signal integrity margins-notably, its 64 mA drive supports stable edges into 50-pF loads at these speeds. The 74FCT16244ATPVCG4 is typically deployed in asynchronous bus interfaces rather than synchronous clock domains.

Does the 74FCT16244ATPVCG4 support hot-swap or partial-power-down operation?

Yes, the 74FCT16244ATPVCG4 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 validated per datasheet Section "Functional Description" and Maximum Ratings Table, making the 74FCT16244ATPVCG4 suitable for hot-plug applications such as modular backplanes and field-replaceable I/O cards.

What package type and dimensions does the 74FCT16244ATPVCG4 use?

The 74FCT16244ATPVCG4 uses a 48-pin TSSOP (Thin Shrunk Small Outline Package) with 0.5-mm pitch, 12.6 mm × 6.2 mm body size, and 1.2-mm maximum height. It conforms to JEDEC MO-153 and is marked "FCT16244A" on the top surface. This package enables high-density routing and is compatible with standard SMT reflow profiles, including peak temperatures up to 260°C per JEDEC J-STD-020.

How does the 74FCT16244ATPVCG4 compare to the 74FCT162244ATPVCT in terms of drive strength and noise performance?

The 74FCT16244ATPVCG4 provides 64 mA sink / 32 mA source drive, optimized for heavy capacitive loads like backplanes, whereas the 74FCT162244ATPVCT delivers balanced 24 mA sink/source with integrated current-limiting resistors-reducing ground bounce (VOLP <0.6 V) and undershoot for cleaner transmission-line signaling. The 74FCT16244ATPVCG4 prioritizes raw drive; the 74FCT162244ATPVCT prioritizes signal fidelity on controlled-impedance traces.

Can the 74FCT16244ATPVCG4 be used with 3.3-V logic inputs?

Yes-the 74FCT16244ATPVCG4 accepts TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and has 5-V tolerant inputs, so it reliably interprets 3.3-V logic HIGH signals as valid. However, its outputs swing to 5-V levels, requiring level translation if interfacing with downstream 3.3-V-only receivers. The 74FCT16244ATPVCG4 itself does not perform voltage translation; it functions as a 5-V buffer with 3.3-V input compatibility.