Nexperia USA Inc. 74AVCH4T245PW-Q10J

Overview

74AVCH4T245PW-Q10J from Nexperia is an automotive-grade 4-bit dual-supply translating transceiver enabling bidirectional level translation between 0.8 V and 3.6 V domains. It supports two independent 2-bit channels or unified 4-bit operation, features active bus hold on all I/Os, IOFF partial power-down protection, and operates across –40 °C to +125 °C. Used in ADAS domain controllers for interfacing 1.2 V sensor interfaces with 3.3 V MCU buses.

For engineers reviewing the 74AVCH4T245PW-Q10J datasheet, 74AVCH4T245PW-Q10J pinout, 74AVCH4T245PW-Q10J application, or 74AVCH4T245PW-Q10J equivalent, key selection criteria include dual-rail voltage translation range (0.8–3.6 V), suspend-mode isolation behavior, bus hold current specs at 1.2 V/1.65 V/2.3 V, and AEC-Q100 Grade 1 qualification for under-hood automotive use.

Technical Context

This device implements a configurable bidirectional translation architecture where direction control (nDIR) selects data flow path (A→B or B→A), while output enable (nOE) places both ports in high-impedance state. Each port's logic thresholds and drive strength are referenced to its dedicated supply (VCC(A) for A-side, VCC(B) for B-side), enabling true mixed-voltage interoperation without external level-shifting components.

The IOFF circuit enforces leakage suppression when either VCC rail drops to GND, forcing outputs into OFF-state and blocking backflow current. Bus hold circuitry maintains valid logic levels on floating inputs-eliminating need for external pull resistors-and remains active on the powered side during suspend mode.

Key Specifications

Pinout & Package

TSSOP16 package (SOT403-1), 4.4 mm body width, 0.65 mm pitch, 16-pin surface-mount with exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply translating transceiver applications.

Compared with SN74AVCH4T245QPWRQ1 and 74LVC4T245PW-Q10J, the 74AVCH4T245PW-Q10J provides superior IOFF protection, tighter propagation delay consistency across voltage combinations, and AOI-compatible TSSOP packaging-making it optimal for safety-critical automotive domains requiring traceable solder joint inspection.

Availability

74AVCH4T245PW-Q10J is available at Aetrix Electronics and suitable for ADAS camera interfaces, electric power steering ECUs, infotainment head units, and body control modules requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.

Supply support for 74AVCH4T245PW-Q10J 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, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in automotive, industrial, and mobile applications.

The 74AVCH4T245 product line delivers automotive-qualified voltage translation solutions targeting mixed-supply system integration in safety-critical electronic control units with strict power sequencing and ESD requirements.

FAQ

Can 74AVCH4T245PW-Q10J translate between 0.8 V and 3.6 V simultaneously?

Yes. The device supports simultaneous 0.8 V (VCC(A)) and 3.6 V (VCC(B)) operation, enabling direct interface between ultra-low-power sensor nodes and legacy 3.3 V subsystems. Static and dynamic characteristics-including VOH/VOL, propagation delay, and bus hold-are fully specified across this full voltage combination range per JEDEC standards JESD8-12 through JESD8-B.

What happens to I/Os when VCC(A) = 0 V and VCC(B) = 3.3 V?

In this suspend condition, all A-side I/Os (1A1–2A2, 1DIR, 1OE, 2DIR, 2OE) enter high-impedance OFF-state with IOFF leakage ≤±5 μA. B-side I/Os remain functional and retain bus hold activity. This prevents back-driving the A-side domain and protects downstream 0.8–1.2 V logic from overvoltage stress.

Does the bus hold feature work during suspend mode?

Yes. Bus hold remains active on the powered side (e.g., B-port when VCC(B) = 3.3 V and VCC(A) = 0 V), maintaining valid logic states on floating B-side inputs. On the unpowered side (A-port), bus hold is disabled, and I/Os default to high-Z with minimal leakage-ensuring safe isolation without contention.

Is the TSSOP16 package (SOT403-1) compatible with automated optical inspection (AOI)?

No-only the DHVQFN16 variant (74AVCH4T245BQ-Q100) includes side-wettable flanks for AOI. The TSSOP16 package (74AVCH4T245PW-Q10J) relies on X-ray or electrical test for solder joint validation. Its lead pitch (0.65 mm) and gull-wing geometry support standard reflow and ICT, but visual AOI coverage is limited to top-surface features.