Nexperia USA Inc. 74LVT16245BDL,112

Overview

74LVT16245BDL,112 from Nexperia is a 3.3 V, 16-bit bidirectional bus transceiver with dual 3-state control (1OE/2OE) and dual direction control (1DIR/2DIR), supporting two independent 8-bit data paths or unified 16-bit operation. It features bus hold inputs eliminating external pull-ups, ±64 mA output drive, and 5.5 V overvoltage-tolerant inputs. It is used in high-speed backplane and motherboard data bus interfacing between 3.3 V logic and legacy 5 V systems.

For engineers reviewing the 74LVT16245BDL,112 datasheet, 74LVT16245BDL,112 pinout, 74LVT16245BDL,112 application, or 74LVT16245BDL,112 equivalent, key selection criteria include bidirectional 3-state timing (tPLH/tPHL ≤ 3.3 ns at 3.3 V), dual OE/DIR granularity, bus hold current (±75–135 μA), IOFF power-down capability, and TSSOP48 thermal performance under industrial temperature range (−40 °C to +85 °C).

Technical Context

This BiCMOS transceiver implements two independent 8-bit bidirectional data channels, each controlled by dedicated OE and DIR signals-enabling selective channel isolation and direction reversal without affecting the other path. Its bus hold circuitry actively maintains logic states on unused inputs, removing dependency on external biasing.

It supports mixed-voltage system interfacing via 5.5 V-tolerant inputs and outputs capable of driving 5 V buses while powered from 2.7–3.6 V. The IOFF circuit ensures negligible leakage (< ±100 μA) during partial power-down, and propagation delays are guaranteed across full industrial temperature range with typical tPLH/tPHL = 1.9/1.7 ns at VCC = 3.3 V.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, 1.2 mm max height - optimized for high-density PCB layouts with improved thermal dissipation vs. SSOP.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16245ADGGR and 74ALVCH16245PAG, the 74LVT16245BDL,112 uniquely combines 5.5 V input tolerance, IOFF, bus hold, and dual-channel granularity-making it the only option qualified for mixed-voltage industrial backplanes requiring live insertion and legacy interoperability.

Availability

74LVT16245BDL,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystem isolation, hot-swappable module interconnects, and embedded test access ports requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74LVT16245BDL,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 with focus on efficiency, reliability, and miniaturization for industrial and computing applications.

The 74LVT series targets high-speed, low-voltage bus interface applications in industrial control, communications infrastructure, and embedded computing-designed specifically for robust 3.3 V operation with legacy system compatibility.

FAQ

What is the maximum clock frequency supported by the 74LVT16245BDL,112?

The device does not operate on a clock; it is an asynchronous transceiver. Its usable data rate is determined by propagation delay (≤3.3 ns) and setup/hold timing margins. With tPLH/tPHL ≤ 3.3 ns and minimal skew, it reliably supports bidirectional bus toggling up to 100–125 MHz in well-terminated systems, assuming proper PCB layout and load capacitance ≤50 pF.

Can the 74LVT16245BDL,112 be used to interface 3.3 V and 5 V logic without external level shifters?

Yes-its inputs tolerate up to 5.5 V regardless of VCC, and its outputs can drive 5 V buses directly when VCC = 3.3 V. However, output HIGH voltage (VOH) is ~2.0–2.3 V at −32 mA, which may fall below TTL input thresholds; verify receiver VIH compatibility. For guaranteed 5 V logic-level signaling, external pull-ups or a dedicated level shifter are recommended.

How does the bus hold feature affect power consumption?

Bus hold draws ±75–135 μA per active input at VCC = 3 V, increasing total ICC by ~1–2 mA when all 32 data inputs are floating. This is negligible compared to dynamic switching current but must be included in worst-case static power budgeting. No additional power is consumed when inputs are driven to valid logic levels.

Is the 74LVT16245BDL,112 pin-compatible with the older 74LVT16245BDL (SOT370-1)?

No-the 74LVT16245BDL,112 uses TSSOP48 (SOT362-1), whereas the discontinued 74LVT16245BDL used SSOP48 (SOT370-1). Though pin functions match, the packages differ in footprint, lead pitch (0.5 mm vs. 0.635 mm), and thermal characteristics. PCB redesign is required for replacement; refer to Nexperia's package outline drawings SOT362-1 and SOT370-1 for mechanical verification.