Texas Instruments 74FCT162H245CTPVC

Overview

74FCT162H245CTPVC from Texas Instruments is a 16-bit bidirectional bus transceiver with bus-hold inputs, 24-mA balanced output drivers, 4.1-ns propagation delay (A↔B), and industrial-grade operation at 5V ±10% across –40°C to +85°C. It enables noise-resilient data transfer between two synchronous buses in memory expansion and backplane interface applications.

For engineers reviewing the 74FCT162H245CTPVC datasheet, 74FCT162H245CTPVC pinout, 74FCT162H245CTPVC application, or 74FCT162H245CTPVC equivalent, key selection criteria include bus-hold functionality eliminating external pull resistors, Ioff support for partial-power-down mode, sub-5-ns timing performance, and SSOP-48 packaging compatible with high-density PCB layouts.

Technical Context

This device operates as a dual-octal or unified 16-bit transceiver controlled by DIR (direction) and active-low OE (output enable). Its bus-hold circuitry actively retains the last logic state on all data inputs when floating, preventing undefined states without external biasing.

It features Ioff protection enabling safe power sequencing in mixed-voltage systems, edge-rate-controlled outputs reducing ground bounce (<0.6 V typical VOLP), and guaranteed 2000-V HBM ESD tolerance. All timing parameters-including tPLH/tPHL (1.5–4.1 ns), tPZH/tPHZ (1.5–5.8 ns), and output skew <0.5 ns-are specified over full industrial temperature and voltage range.

Key Specifications

Pinout & Package

74FCT162H245CTPVC uses a 48-pin SSOP (Shrunk Small Outline Package) with 300-mil body width, 0.635-mm pitch, and 1.2-mm max height-designed for automated SMT assembly and thermal reliability in dense layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit bus transceiver applications.

Compared with CY74FCT162245CTPVC and 74FCT16245CTPVC, the 74FCT162H245CTPVC uniquely integrates bus-hold for input stability without added components, while maintaining identical timing and package compatibility-making it optimal for space-constrained, maintenance-sensitive industrial designs.

Availability

74FCT162H245CTPVC is available at Aetrix Electronics and suitable for memory expansion interfaces, industrial PLC I/O hubs, backplane data bridges, and legacy bus adapters requiring stable component supply and long-term industrial qualification.

Supply support for 74FCT162H245CTPVC 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 connectivity solutions with deep expertise in industrial, automotive, and communications markets.

The 74FCT162H245CTPVC belongs to TI's FCT logic family-engineered for high-speed, low-noise 5-V digital interfacing in mission-critical industrial systems where reliability, timing precision, and power sequencing safety are essential.

FAQ

What is the function of bus-hold in the 74FCT162H245CTPVC?

The bus-hold circuit in the 74FCT162H245CTPVC actively retains the last valid logic state on each data input when the input is left floating or disconnected. This eliminates the need for external pull-up or pull-down resistors, reduces BOM cost and board space, and prevents metastability or glitches during hot-swap or power sequencing events-critical in industrial PLC and modular I/O systems where connector disconnection is routine.

Does the 74FCT162H245CTPVC support partial power-down operation?

Yes, the 74FCT162H245CTPVC incorporates Ioff circuitry that disables all outputs and limits leakage current to ±1 µA when VCC = 0 V. This feature enables safe partial-power-down operation in multi-rail systems-for example, allowing a peripheral module to be powered down while the host processor remains active-without risking damaging back-current flow through the 74FCT162H245CTPVC's I/O pins.

What is the maximum data rate supported by the 74FCT162H245CTPVC?

The 74FCT162H245CTPVC supports reliable bidirectional data transfer at up to 200 MHz, based on its 4.1-ns maximum propagation delay (tPLH/tPHL) and <0.5-ns output skew. At 25-MHz clock rates, it meets setup/hold timing margins even with 20-pF trace capacitance and 10-cm routing-making it suitable for high-speed memory expansion and backplane bridging in industrial controllers and test equipment.

Can the 74FCT162H245CTPVC be used as two independent 8-bit transceivers?

Yes, the 74FCT162H245CTPVC can operate as two independent octal transceivers using separate DIR and OE controls (1DIR/1OE for first octal, 2DIR/2OE for second). This configuration allows asynchronous data flow between distinct bus segments-for instance, isolating sensor acquisition and actuator control paths within a single IC-while retaining full bus-hold, Ioff, and timing specifications for each channel.

What package type and dimensions does the 74FCT162H245CTPVC use?

The 74FCT162H245CTPVC uses a 48-pin SSOP (Shrunk Small Outline Package) with 300-mil body width, 0.635-mm lead pitch, and 1.2-mm maximum height. Its JEDEC MO-153-compliant footprint (DL package code) supports standard SMT reflow profiles and provides mechanical robustness for vibration-prone industrial environments-distinct from the TSSOP variant (DGG) used in the PACT suffix versions.