Nexperia USA Inc. 74AXP4T245PWJ

Overview

74AXP4T245PWJ from Nexperia is a 4-bit dual-supply translating transceiver with 3-state outputs enabling bidirectional level translation between independent voltage domains (0.9 V to 5.5 V). It supports two 2-bit or one 4-bit configuration, features separate VCC(A) and VCC(B) supplies, direction control (nDIR), output enable (nOE), and IOFF partial power-down protection. Used in mixed-voltage SoC interconnects, FPGA I/O bridging, and industrial controller bus isolation.

For engineers reviewing the 74AXP4T245PWJ datasheet, 74AXP4T245PWJ pinout, 74AXP4T245PWJ application, or 74AXP4T245PWJ equivalent, key selection criteria include dual-rail voltage flexibility (0.9–5.5 V per rail), guaranteed glitch-free supply transitions, sub-15 ns propagation delay at 3.3 V/2.5 V, IOFF leakage < ±2 μA at 125 °C, and TSSOP16 package compatibility with JEDEC JESD8-series logic standards.

Technical Context

This device implements a dual-supply CMOS transceiver architecture with independent input/output referencing: nAn, nDIR, and nOE pins are referenced to VCC(A); nBn pins to VCC(B). Directional data flow is controlled by nDIR (HIGH = A→B, LOW = B→A), while nOE (active LOW) places both ports in high-impedance state. No power supply sequencing is required.

The IOFF circuitry actively disables outputs when either VCC(A) or VCC(B) is at GND, preventing backflow current and ensuring safe partial power-down operation across -40 °C to +125 °C. Glitch suppression is achieved via patented circuitry, eliminating output transients during supply ramp rates from 20 mV/µs to 5.5 V/s.

Key Specifications

Pinout & Package

TSSOP16 package (SOT403-1), 4.4 mm body width, 0.65 mm pitch, 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 SN74AVCH4T245RGE and TXS0104EYZTR, the 74AXP4T245PWJ delivers broader voltage coverage (0.9–5.5 V), lower leakage in suspend mode, and guaranteed glitch immunity-making it optimal for mixed-voltage industrial and automotive control subsystems requiring deterministic timing and fail-safe power sequencing.

Availability

74AXP4T245PWJ is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, FPGA I/O bridging, and server BMC interfaces requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74AXP4T245PWJ 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.

The 74AXP series targets low-power, wide-voltage digital interfacing in industrial, automotive, and computing applications-designed specifically for robust mixed-domain signal translation without external biasing or sequencing.

FAQ

What is the maximum allowable voltage difference between VCC(A) and VCC(B)?

The 74AXP4T245PWJ allows any combination of VCC(A) and VCC(B) within 0.9 V to 5.5 V independently, meaning the absolute voltage difference can reach up to 4.6 V (e.g., VCC(A) = 0.9 V, VCC(B) = 5.5 V). This is validated per datasheet Table 4 limiting values and functional description, with no derating required.

Does the device require external pull-up or pull-down resistors on control pins?

No external resistors are required on nDIR or nOE. These inputs have defined HIGH/LOW thresholds referenced to VCC(A) (e.g., VIH = 0.7×VCC(A)), and internal clamping diodes plus ESD protection eliminate need for external biasing-confirmed in Section 9 static characteristics and JEDEC compliance tables.

How does IOFF behavior differ between full power-down and suspend mode?

In suspend mode (VCC(A) = 0 V or VCC(B) = 0 V), both A- and B-side I/O enter high-impedance OFF-state with leakage ≤±2 μA. Full power-down (both supplies at 0 V) yields identical behavior-verified in Table 6 IOFF and ΔIOFF measurements, with no distinction in electrical response between the two states.

Can the 74AXP4T245PWJ translate between 0.9 V and 5.0 V while maintaining timing specifications?

Yes. Propagation delay remains within datasheet limits (e.g., 32 ns max A→B at VCC(A)=0.9 V/VCC(B)=5.0 V, -40 °C to +125 °C per Table 12), and output drive strength (VOH/VOL) is guaranteed across the full voltage range-validated in Sections 9 and 12 with no timing or voltage margin penalties.