Texas Instruments 74FCT162H245CTPVCT

Overview

74FCT162H245CTPVCT from Texas Instruments is a 16-bit non-inverting bus transceiver with bus-hold inputs, 24 mA balanced output drive, 4.1 ns propagation delay (A↔B), and I_OFF partial-power-down support. It operates at 5 V ±10% across –40°C to +85°C and is used in bidirectional data routing between high-speed system buses in industrial control backplanes.

For engineers reviewing the 74FCT162H245CTPVCT datasheet, 74FCT162H245CTPVCT pinout, 74FCT162H245CTPVCT application, or 74FCT162H245CTPVCT equivalent, key selection criteria include bus-hold input retention, 24 mA drive capability, SSOP-48 package compatibility, and industrial temperature operation without external pull resistors.

Technical Context

This device implements dual-octal or unified 16-bit bidirectional data transfer controlled by DIR (direction) and OE (output enable, active-low). Its bus-hold circuitry actively retains the last valid logic state on all A- and B-side inputs when floating, eliminating external biasing components.

The transceiver uses FCT logic with edge-rate control for reduced ground bounce (<0.6 V typical VOLP) and ESD protection >2000 V. It supports partial-power-down via I_OFF, disabling outputs to prevent current backflow when V_CC = 0 V.

Key Specifications

Pinout & Package

74FCT162H245CTPVCT is housed in a 48-pin SSOP (Shrink Small Outline Package), 300-mil body width, with 0.025-inch (0.635 mm) lead pitch. The package is RoHS-compliant, green (no Sb/Br), and moisture-sensitive level 1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74FCT162H245CTPVCT, 74FCT162245CTPVCT removes bus-hold but retains identical timing and drive-ideal for cost-optimized, fully driven buses. SN74LVCH16245ADGGR shifts to 3.3 V operation with higher integration but sacrifices 5 V compatibility and adds timing overhead.

Availability

74FCT162H245CTPVCT is available at Aetrix Electronics and suitable for industrial backplane interfaces, motor control system buses, programmable logic interconnects, and legacy peripheral bridges requiring stable component supply across extended temperature ranges.

Supply support for 74FCT162H245CTPVCT 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 for industrial, automotive, and communications markets.

The 74FCT162H245CTPVCT belongs to TI's FCT logic family, engineered for high-speed, low-noise bidirectional bus interfacing in industrial control and real-time embedded systems where reliability under electrical stress is critical.

FAQ

What is the function of the bus-hold feature in 74FCT162H245CTPVCT?

The bus-hold feature in 74FCT162H245CTPVCT actively maintains the last valid logic state on each input pin when the driving source goes high-impedance. This eliminates the need for external pull-up or pull-down resistors, preventing undefined logic levels and system lockups during signal transitions or power sequencing. It is implemented on all 32 A- and B-side data inputs of the 74FCT162H245CTPVCT.

Does 74FCT162H245CTPVCT support partial-power-down operation?

Yes, 74FCT162H245CTPVCT supports partial-power-down via its I_OFF circuitry. When V_CC = 0 V, the outputs are disabled and leakage is limited to ±1 µA, preventing damaging current backflow from live buses into the unpowered device. This behavior is fully specified and tested for 74FCT162H245CTPVCT across the industrial temperature range.

What package type and dimensions does 74FCT162H245CTPVCT use?

74FCT162H245CTPVCT uses a 48-pin SSOP (Shrink Small Outline Package) with 300-mil body width and 0.025-inch lead pitch. Its mechanical outline conforms to JEDEC MO-153, with overall dimensions of 15.4 mm × 7.5 mm × 2.3 mm (L × W × H). The "PVCT" suffix explicitly denotes this SSOP packaging variant for the 74FCT162H245CTPVCT.

Can 74FCT162H245CTPVCT be operated as two independent 8-bit transceivers?

Yes, 74FCT162H245CTPVCT can be configured as two independent octal transceivers using separate DIR and OE controls (1DIR/1OE for first octal, 2DIR/2OE for second). Each octal section operates autonomously, allowing asymmetric data flow directions and enable timing-enabling flexible partitioning of the 16-bit path in applications like dual-memory channel buffering or split peripheral addressing.

What are the absolute maximum ratings for 74FCT162H245CTPVCT?

The absolute maximum ratings for 74FCT162H245CTPVCT include: DC input/output voltage of –0.5 V to +7.0 V, storage temperature of –55°C to +125°C, ambient operating temperature of –40°C to +85°C, and maximum output current of ±120 mA per pin. Exceeding these limits may impair long-term reliability and is not recommended in any design using the 74FCT162H245CTPVCT.