Texas Instruments 74FCT162374CTPVCT

Overview

74FCT162374CTPVCT from Texas Instruments is a 16-bit edge-triggered D-type register with dual 8-bit register capability, 24 mA balanced output drivers, 5.2 ns max propagation delay (CLK to O), and Ioff partial-power-down support. It operates at 5V ±10% over −40°C to +85°C and is used in high-speed bus buffering and transmission-line driving applications.

For engineers reviewing the 74FCT162374CTPVCT datasheet, 74FCT162374CTPVCT pinout, 74FCT162374CTPVCT application, or 74FCT162374CTPVCT equivalent, key selection criteria include output drive symmetry (24 mA sink/source), ground bounce performance (<0.6 V typical VOLP), flow-through pinout for PCB layout simplification, and SSOP-48 industrial-grade packaging.

Technical Context

This device implements two independent 8-bit registers or one unified 16-bit register via shared CLK and OE inputs. Its balanced 24 mA output drivers incorporate internal current-limiting resistors to minimize undershoot and reduce reliance on external termination.

The Ioff circuitry actively disables outputs during power-down to prevent backflow current, and edge-rate control circuitry ensures low-noise switching. Output skew is guaranteed ≤0.5 ns across any two outputs switching in the same direction.

Key Specifications

Pinout & Package

74FCT162374CTPVCT is housed in a 48-pin SSOP (Shrink Small Outline Package), 300-mil body width, JEDEC MO-118 compliant, with 0.025-inch (0.635 mm) lead pitch and 1.2 mm max height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY74FCT162374ATPVCT, 74FCT162374CTPVCT offers tighter timing for high-frequency bus operation; compared with 74FCT162374CTPACT, it provides greater mechanical robustness and easier hand-soldering due to wider SSOP lead pitch.

Availability

74FCT162374CTPVCT is available at Aetrix Electronics and suitable for industrial bus interface, memory address latching, and high-speed data acquisition applications requiring stable component supply and long-term lifecycle support.

Supply support for 74FCT162374CTPVCT 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 over 50 years of industrial-grade product development.

The FCT logic family-including 74FCT162374CTPVCT-is engineered for high-speed, low-noise 5V digital interfacing in industrial, automotive, and communications systems where reliability and signal integrity are critical.

FAQ

What is the maximum clock frequency supported by the 74FCT162374CTPVCT?

The 74FCT162374CTPVCT has a minimum clock pulse width of 3.3 ns (HIGH or LOW), enabling reliable operation up to approximately 150 MHz under ideal conditions. System-level timing must account for setup/hold (tSU = 2.0 ns, tH = 1.5 ns) and propagation delay (tPLH/tPHL ≤ 5.2 ns). The 74FCT162374CTPVCT is commonly deployed in 80–100 MHz bus applications with margin.

Does the 74FCT162374CTPVCT support mixed-voltage operation with 3.3V inputs?

Yes-the 74FCT162374CTPVCT accepts TTL-compatible input levels: VIH ≥ 2.0 V and VIL ≤ 0.8 V. When operated at VCC = 5 V, it reliably interfaces with 3.3V CMOS outputs (which typically swing 0–3.3V), as 3.3V exceeds the 2.0V VIH threshold. No external level shifters are needed for 3.3V-to-5V signal translation.

How does the Ioff feature function in the 74FCT162374CTPVCT during power-down sequences?

The Ioff circuitry in the 74FCT162374CTPVCT disables all outputs when VCC = 0 V, limiting IOFF to ±1 µA regardless of input/output voltage (up to 4.5 V). This prevents current backflow from live buses into a powered-down section-critical for hot-swap capability and safe multi-rail power sequencing in modular systems using the 74FCT162374CTPVCT.

Can the 74FCT162374CTPVCT be used as two independent 8-bit registers?

Yes-the 74FCT162374CTPVCT contains two fully independent 8-bit register sections (labeled "1" and "2"), each with dedicated CLK, OE, D, and O pins. By applying separate clock and enable signals, both sections operate asynchronously. Alternatively, tying 1CLK = 2CLK and 1OE = 2OE configures it as a single 16-bit register-providing design flexibility within the same 74FCT162374CTPVCT footprint.

What is the significance of the "C" suffix in 74FCT162374CTPVCT?

The "C" in 74FCT162374CTPVCT denotes the commercial/industrial speed grade: 5.2 ns maximum propagation delay. It distinguishes this variant from the "A" grade (6.5 ns) and standard "T" grade (10.0 ns). All "C"-grade devices-including the 74FCT162374CTPVCT-are specified over the full −40°C to +85°C industrial temperature range and share identical DC and AC electrical characteristics except for timing.