Nexperia USA Inc. 74AVCH1T45GN,132

Overview

74AVCH1T45GN,132 from Nexperia is a single-bit dual-supply voltage level translator/transceiver enabling bidirectional logic-level translation between 0.8 V and 3.6 V domains. It features active bus hold on data inputs, IOFF partial power-down protection, and operates across -40 °C to +125 °C. Used in mixed-voltage I/O interfacing between low-voltage processors and legacy peripherals.

For engineers reviewing the 74AVCH1T45GN,132 datasheet, 74AVCH1T45GN,132 pinout, 74AVCH1T45GN,132 application, or 74AVCH1T45GN,132 equivalent, key selection criteria include dual-rail supply flexibility, bus-hold elimination of external resistors, IOFF current blocking during power sequencing, and verified 500 Mbit/s throughput at 1.8 V → 3.3 V translation.

Technical Context

The device implements a direction-controlled bidirectional transceiver architecture with independent VCC(A) and VCC(B) supplies, where DIR referenced to VCC(A) selects data flow direction (A↔B). Its bus-hold circuitry actively maintains unused A/B inputs at valid logic levels without external components.

IOFF circuitry disables outputs when either supply is at GND, preventing backflow current during partial power-down. Suspend mode activates automatically if VCC(A) or VCC(B) = GND, placing both ports in high-impedance state while retaining bus-hold functionality.

Key Specifications

Pinout & Package

XSON6 package (SOT1115): 0.9 mm × 1.0 mm × 0.35 mm body, no leads, 6-terminal exposed pad design optimized for thermal performance and PCB area reduction in space-constrained applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply voltage translation applications.

Compared with TXS0101DCKR and SN74AVC1T45DBVR, the 74AVCH1T45GN,132 uniquely combines bus hold, IOFF, suspend mode, and XSON6 thermal efficiency - making it optimal for space-constrained, mixed-voltage embedded systems requiring zero-external-component reliability.

Availability

74AVCH1T45GN,132 is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control, portable medical devices, and 5G small cell baseband applications requiring stable component supply, extended temperature operation, and compact packaging.

Supply support for 74AVCH1T45GN,132 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 solutions with focus on efficiency, miniaturization, and robustness.

The 74AVCH1T45GN,132 belongs to Nexperia's advanced logic translator family, engineered specifically for low-power, mixed-voltage system integration in automotive, industrial, and portable electronics where supply rail independence and power sequencing resilience are critical.

FAQ

What is the minimum recommended supply voltage for reliable bus hold operation?

Bus hold remains functional down to VCC(A) = VCC(B) = 0.8 V, with sustaining currents of ±24 μA at 1.2 V and ±100 μA at 3.0 V. Below 0.8 V, bus hold strength degrades; operation outside the 0.8–3.6 V range violates JEDEC compliance and may cause undefined logic states or increased leakage.

Can DIR be driven from a different voltage domain than VCC(A)?

No - DIR is referenced exclusively to VCC(A), and its VIH/VIL thresholds scale with VCC(A) (e.g., VIH = 0.65×VCC(A)). Driving DIR from another rail risks incorrect direction control or excessive input current. Always tie DIR to a signal sourced from the VCC(A) domain.

How does suspend mode affect bus hold behavior?

In suspend mode (VCC(A) = GND or VCC(B) = GND), both A and B ports enter high-impedance state but retain active bus hold - maintaining last-valid logic level without external components. This prevents floating inputs during power transitions while avoiding contention on shared buses.

Is the XSON6 package (SOT1115) compatible with standard reflow profiles?

Yes - the 74AVCH1T45GN,132 in SOT1115 uses standard Pb-free reflow profile (J-STD-020E, peak 260 °C). Its 0.35 mm height and thermal pad enable efficient heat dissipation; recommended stencil aperture is 0.25 mm × 0.9 mm for the center pad to ensure void-free solder joints.