Nexperia USA Inc. 74AVCH1T45GM,132

Overview

74AVCH1T45GM,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 I/Os, IOFF partial power-down protection, and operates across -40 °C to +125 °C. Used in mixed-voltage SoC interfaces, FPGA-to-peripheral bridging, and low-power IoT sensor hubs where supply domain isolation and signal integrity are critical.

For engineers reviewing the 74AVCH1T45GM,132 datasheet, 74AVCH1T45GM,132 pinout, 74AVCH1T45GM,132 application, or 74AVCH1T45GM,132 equivalent, key selection criteria include bidirectional translation capability, IOFF-enabled safe power sequencing, bus hold current specifications at 1.2 V/1.65 V/3.0 V, propagation delay asymmetry (A→B vs B→A), and XSON6 package thermal derating above 74 °C.

Technical Context

The device implements a direction-controlled, 3-state transceiver architecture with independent VCC(A) and VCC(B) supplies referenced to a common GND. DIR input is referenced solely to VCC(A), and the internal bus hold circuit maintains valid logic states on floating A/B pins without external resistors.

IOFF circuitry disables outputs when either supply drops to GND, preventing backflow current during partial power-down. Suspend mode activates automatically if VCC(A) = 0 V or VCC(B) = 0 V, placing both A and B ports in high-impedance state with leakage < ±5 μA over full temperature range.

Key Specifications

Pinout & Package

XSON6 plastic extremely thin small outline package (SOT886), no leads, 6 terminals, body size 1.0 × 1.45 × 0.5 mm, thermal pad optional, moisture sensitivity level 1 (MSL1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXS0101DCUR and SN74AXC1T45DBVR, the 74AVCH1T45GM,132 uniquely combines bus hold, -40 °C to +125 °C qualification, and XSON6 footprint - making it optimal for thermally constrained, high-reliability mixed-voltage interconnects where pin count and passive component count must be minimized.

Availability

74AVCH1T45GM,132 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, FPGA-to-ADC interfaces, and IoT edge node sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AVCH1T45GM,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 optimized for efficiency, miniaturization, and robustness in high-volume applications.

The 74AVCH1T45 belongs to Nexperia's advanced level translation portfolio, designed specifically for low-power, mixed-voltage digital systems where supply domain isolation, signal integrity, and thermal efficiency are critical - especially in automotive, industrial, and portable electronics.

FAQ

Can 74AVCH1T45GM,132 translate between 0.8 V and 5.0 V domains?

No. Absolute maximum VCC(A) and VCC(B) ratings are +4.6 V, but the device is only specified for operation between 0.8 V and 3.6 V per rail. Inputs are overvoltage tolerant to 3.6 V, but driving a 5.0 V domain violates JEDEC compliance and risks exceeding VI limits. Use a dedicated 5 V-tolerant translator like NXH0102UK for such interfaces.

What happens to A and B pins during power-up if VCC(A) and VCC(B) ramp at different rates?

The device requires GND applied first, but no strict VCC sequencing is needed. If VCC(A) rises before VCC(B), DIR is valid early and A port functions normally; B port enters high-impedance until VCC(B) reaches ~0.8 V. Bus hold maintains A pin state during this window, preventing glitches.

Is the XSON6 package (SOT886) lead-free and RoHS-compliant?

Yes. The 74AVCH1T45GM,132 uses a lead-free, halogen-free, RoHS-compliant XSON6 package (SOT886) with matte tin termination. It meets JEDEC J-STD-020 moisture sensitivity level 1 (unlimited floor life at ≤30 °C/60% RH) and qualifies for standard Pb-free reflow profiles (peak 260 °C).

How does bus hold behave when VCC(A) = 1.2 V and VCC(B) = 3.3 V?

Bus hold operates independently on A and B pins using local VCC rails. At VCC(A) = 1.2 V, IBHL = 15 μA and IBHH = -15 μA on A pin; at VCC(B) = 3.3 V, IBHL = 100 μA and IBHH = -100 μA on B pin. This ensures robust state retention across both domains despite voltage mismatch.