NXP Semiconductors 74LVT162245BDL,112

Overview

74LVT162245BDL,112 from Nexperia is a 3.3 V 16-bit bidirectional transceiver with integrated 30 Ω series output termination resistors, dual independent direction (1DIR/2DIR) and output enable (1OE/2OE) controls, and bus-hold inputs eliminating external pull-ups. It operates across 2.7–3.6 V, delivers ±12 mA drive strength, and supports high-speed data transfer in backplane and memory interface applications.

For engineers reviewing the 74LVT162245BDL,112 datasheet, 74LVT162245BDL,112 pinout, 74LVT162245BDL,112 application, or 74LVT162245BDL,112 equivalent, this device is selected for low-skew, impedance-matched 16-bit bus interfacing where live insertion, overvoltage tolerance (5.5 V), and power-down leakage control (IOFF) are critical design requirements.

Technical Context

This BiCMOS transceiver implements two independent 8-bit transceiver blocks (A↔B), each with dedicated DIR and OE inputs enabling flexible half-duplex or full-duplex operation. Direction control is synchronous and non-latched - output state follows input logic level immediately when enabled.

Each output integrates a 30 Ω series resistor to match typical PCB trace impedance, suppressing reflections without external components. Bus-hold circuitry maintains valid logic states on unused I/O pins at VIH ≥ 2.0 V or VIL ≤ 0.8 V, with IBHL/IBHH currents of ±75–130 μA at 3 V.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead finish matte tin.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16245ADGGR and 74ALVCH162245QFG, the 74LVT162245BDL,112 uniquely combines on-die 30 Ω termination, bus-hold, and IOFF in a single TSSOP48 package - making it optimal for space-constrained, hot-pluggable, and noise-sensitive industrial backplane designs.

Availability

74LVT162245BDL,112 is available at Aetrix Electronics and suitable for backplane routing, memory interface buffering, industrial PLC I/O expansion, and test equipment bus isolation requiring stable component supply, long-term lifecycle support, and consistent parametric performance.

Supply support for 74LVT162245BDL,112 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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in industrial and consumer electronics.

The 74LVT162245B belongs to Nexperia's LVT (Low-Voltage Technology) logic family, designed specifically for high-speed, low-noise 3.3 V bus interfacing with emphasis on signal integrity, hot-swap safety, and mixed-voltage interoperability.

FAQ

What is the purpose of the 30 Ω series resistors integrated in each output?

Each output includes a monolithic 30 Ω series resistor to match typical PCB trace impedances (e.g., 50–75 Ω differential pairs), minimizing signal reflections and ringing without requiring external discrete resistors. This reduces component count, layout complexity, and potential stub effects in high-speed parallel buses.

Can 74LVT162245BDL,112 safely interface with 5 V logic systems?

Yes - its inputs tolerate up to 5.5 V regardless of VCC level, allowing direct connection to 5 V outputs without level shifters. However, outputs swing only to VCC (max 3.6 V), so driving 5 V TTL inputs requires verification of VIH thresholds; most standard TTL accepts ≥2.0 V as HIGH.

How does the bus-hold feature function, and what current does it source/sink?

Bus-hold circuitry actively maintains the last-valid logic state on unused inputs using weak feedback. At VCC = 3 V, it sources +75–130 μA when holding HIGH and sinks −75–130 μA when holding LOW - sufficient to override typical leakage but not interfere with active drivers.

Is the 74LVT162245BDL,112 suitable for hot-swap applications?

Yes - its IOFF circuitry disables current flow between I/O pins when VCC = 0 V, preventing backfeeding and latch-up during live insertion or extraction. Combined with power-up 3-state and overvoltage-tolerant inputs, it meets key requirements for modular backplane and carrier-card systems.