Nexperia USA Inc. 74LVT162245BDGG:11

Overview

74LVT162245BDGG:11 from Nexperia is a 3.3 V, 16-bit bidirectional bus transceiver with integrated 30 Ω series output termination resistors, dual independent direction (1DIR/2DIR) and output enable (1OE/2OE) controls, ±12 mA drive strength, and bus-hold inputs eliminating external pull-ups. It operates across 2.7 V–3.6 V supply and supports hot-plug operation in high-speed backplane and memory interface applications.

For engineers reviewing the 74LVT162245BDGG:11 datasheet, 74LVT162245BDGG:11 pinout, 74LVT162245BDGG:11 application, or 74LVT162245BDGG:11 equivalent, this device is selected for low-skew, impedance-matched 16-bit data path buffering where TTL-level compatibility, overvoltage-tolerant 5.5 V inputs, and power-down leakage control are required.

Technical Context

The 74LVT162245B implements two independent 8-bit transceiver blocks-each with dedicated DIR and OE pins-enabling flexible partitioning of data flow between A- and B-buses. Its BiCMOS architecture delivers TTL-compatible input thresholds while maintaining CMOS-level power efficiency and fast propagation (≤3.5 ns typical at 3.3 V).

Each output integrates a 30 Ω series resistor to match PCB trace impedance and suppress reflections without external components. Bus-hold circuitry actively maintains last-valid logic state on unused inputs, and IOFF functionality ensures near-zero leakage during partial power-down when VCC = 0 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 bidirectional transceiver applications.

Compared with SN74LVC16245ADGGR and 74ALVCH162245PAG, the 74LVT162245BDGG:11 uniquely combines integrated 30 Ω termination, bus-hold, and 2.7 V–3.6 V operation-reducing component count and improving reliability in thermally stressed or marginally regulated environments.

Availability

74LVT162245BDGG:11 is available at Aetrix Electronics and suitable for high-speed backplane interfaces, memory subsystem buffering, and hot-pluggable module designs requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance.

Supply support for 74LVT162245BDGG:11 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 miniaturization in industrial, automotive, and computing applications.

The 74LVT162245B belongs to Nexperia's LVT (Low-Voltage TTL) logic family, designed specifically for high-speed, low-noise 3.3 V bus interfacing with robust ESD tolerance and mixed-voltage interoperability.

FAQ

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

Each output includes a monolithic 30 Ω series resistor to match typical PCB microstrip or stripline characteristic impedance, suppressing signal reflections and reducing overshoot/ringing without requiring external components. This improves timing margin and signal integrity in high-speed parallel bus layouts up to 200 MHz.

Can the 74LVT162245BDGG:11 safely interface with 5 V logic inputs?

Yes-the device features overvoltage-tolerant inputs rated to 5.5 V, allowing direct connection to 5 V TTL or CMOS outputs without clamping diodes or level-shifting circuitry. Input thresholds remain compatible with standard TTL logic levels across the full 2.7 V–3.6 V supply range.

How does the bus-hold function eliminate the need for external pull-up resistors?

Internal bus-hold circuitry applies weak feedback (±75 μA to ±130 μA) to maintain the last-valid logic state on unused inputs. This prevents floating nodes and undefined logic levels, removing the need for 16 discrete pull-up resistors and associated board space and BOM cost.

Is the 74LVT162245BDGG:11 suitable for hot-swap applications?

Yes-it supports live insertion/extraction per JEDEC standards, with IOFF circuitry limiting power-off leakage to ±100 μA and robust ESD protection (HBM >2000 V, CDM >1000 V). The dual OE/DIR control enables precise sequencing of bus isolation during hot-plug events.