Nexperia USA Inc. 74AXP2T3407DCH

Overview

74AXP2T3407DCH from Nexperia is a dual-supply, dual-channel level-translating buffer IC featuring one push-pull output (1Y) and one open-drain output (2Y), with independent input (VCCI: 0.7–2.75 V) and output (VCCO: 1.2–5.5 V) supply rails. It enables bidirectional voltage translation between sub-1.0 V logic domains and up to 5.5 V interfaces while maintaining Schmitt-trigger inputs for noise immunity and IOFF circuitry for partial power-down protection. It is used in low-power I²C bus expansion, mixed-voltage sensor interface, and FPGA I/O bridging.

For engineers reviewing the 74AXP2T3407DCH datasheet, 74AXP2T3407DCH pinout, 74AXP2T3407DCH application, or 74AXP2T3407DCH equivalent, key selection criteria include dual-rail voltage translation range, IOFF-enabled isolation during power sequencing, open-drain compatibility with wired-AND buses, and guaranteed operation from −40 °C to +85 °C in ultra-thin packages.

Technical Context

This device implements two independent signal paths: Channel 1 (1A → 1Y) operates as a Schmitt-triggered push-pull buffer referenced to VCCI and VCCO; Channel 2 (2A → 2Y) provides an open-drain output referenced solely to VCCO, enabling pull-up flexibility and bus arbitration. Both inputs tolerate voltages up to 2.75 V regardless of VCCI setting.

The IOFF circuit actively disables both outputs when either supply drops below ~0.1 V, blocking backflow current and enabling hot-swap capability. Input hysteresis (typ. 0.15 × VCCI) ensures robust timing with slow-rising signals, and dynamic power scales linearly with V² × f due to confirmed CPD values of 0.4 pF (input) and 7.1 pF (1Y output at 3.3 V).

Key Specifications

Pinout & Package

VSSOP8 package (SOT765-1), 8-pin plastic very thin shrink small outline, body width 2.3 mm, pin 1 indicator at lower-left corner below marking code.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXB0102DGSR and SN74AVC2T244RSWR, the 74AXP2T3407DCH uniquely combines Schmitt-trigger noise immunity, true open-drain output, and ultra-wide dual-rail voltage support - making it optimal for robust, low-power control signal translation in thermally demanding or mixed-voltage embedded systems.

Availability

74AXP2T3407DCH is available at Aetrix Electronics and suitable for industrial sensor interface, FPGA I/O bridging, I²C bus expansion, and power sequencing control requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74AXP2T3407DCH 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 logic, discrete, and MOSFET solutions optimized for efficiency, miniaturization, and thermal resilience in mass-market electronics.

The 74AXP series targets ultra-low-power, space-constrained applications requiring robust voltage translation and seamless integration into heterogeneous power-domain architectures - especially in portable, industrial, and automotive subsystems.

FAQ

Can 74AXP2T3407DCH translate from 2.5 V to 1.2 V?

No - VCCI must be ≤ VCCO per datasheet limits; the device supports only upward translation (e.g., 0.8 V → 3.3 V) or same-rail buffering. Downward translation violates absolute maximum ratings and risks latch-up. Use dedicated bidirectional translators like TXS0102 for 2.5 V ↔ 1.2 V.

What is the minimum VCCO required for 2Y to function as an open-drain output?

VCCO must be ≥1.2 V per recommended operating conditions. At 1.2 V, 2Y sinks ≥2 mA with VOL ≤0.18 V, enabling reliable low-state assertion on 1.2 V–5.5 V pull-up networks. Operation below 1.2 V is undefined and may cause excessive leakage or failure to reach valid logic low.

Does the IOFF feature activate when only VCCI is powered?

Yes - IOFF engages whenever VCCI ≤ 0.1 V or VCCO ≤ 0.1 V, regardless of the other rail's state. With VCCI = 0 V and VCCO = 3.3 V, both outputs are disabled and leakage remains ≤±0.5 µA, preventing unintended loading of the powered VCCO domain.

Is pin 1 marking visible on the VSSOP8 package?

Yes - per Figure 3 and Table 1, the pin 1 indicator is a molded notch or dimple located on the lower-left corner of the VSSOP8 (SOT765-1) package body, directly below the alphanumeric marking code (e.g., "r4"), and aligned with the lead edge.