Nexperia USA Inc. 74HCT253PWJ

Overview

74HCT253PWJ from Nexperia is a dual 4-input multiplexer IC with TTL-compatible input thresholds, 3-state outputs, shared S0/S1 select lines, independent 1OE/2OE enable inputs, and operation across 4.5 V to 5.5 V supply. It routes one of four binary inputs per channel to its respective output (1Y/2Y) and supports bus interfacing in industrial control logic and digital signal routing.

For engineers reviewing the 74HCT253PWJ datasheet, 74HCT253PWJ pinout, 74HCT253PWJ application, or 74HCT253PWJ equivalent, key selection criteria include TTL-level input compatibility, 3-state bus drive capability, propagation delay ≤17 ns at 5 V/15 pF, -40 °C to +125 °C temperature rating, and TSSOP16 package thermal performance.

Technical Context

This device implements two independent 4:1 multiplexers sharing select inputs S0 and S1, each with dedicated active-low output enable (1OE, 2OE). The non-inverting data path preserves logic polarity, and clamp diodes on all inputs allow safe interfacing with voltages exceeding VCC when current-limiting resistors are used.

It complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), supports HBM ESD >2000 V and CDM >1000 V, and meets latch-up immunity >100 mA per JESD78 Class II Level B. Static and dynamic parameters are fully specified over -40 °C to +125 °C.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; 0.65 mm pitch; exposed pad optional (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.

Compared with 74HC253PW, the 74HCT253PWJ ensures seamless integration with TTL sources without level shifters, while SN74LS253N offers faster propagation in narrow-voltage 5 V systems but sacrifices thermal range, power efficiency, and bus flexibility.

Availability

74HCT253PWJ is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive sensor multiplexing, digital logic address decoding, and test equipment signal routing requiring stable component supply across extended temperature ranges.

Supply support for 74HCT253PWJ 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 focused on essential semiconductors for efficient power management, logic, and analog functions in automotive, industrial, and consumer applications.

The 74HCT series delivers TTL-compatible CMOS logic optimized for robustness, low power, and wide operating margins in mission-critical embedded systems.

FAQ

What is the maximum clock frequency supported by the 74HCT253PWJ?

The 74HCT253PWJ does not operate on a clock signal-it is a combinational logic device. Its speed is defined by propagation delay: 17 ns typical from input to output at 5 V and 15 pF load. This supports data selection rates up to approximately 30 MHz in worst-case timing paths, assuming setup/hold margins are met in the driving circuitry.

Can the 74HCT253PWJ be used with a 3.3 V supply?

No. The 74HCT253PWJ is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH ≥ 2.0 V) may not be reliably met by standard 3.3 V logic outputs, and output drive strength degrades significantly. Use 74LVC253 or 74AUP2G253 for 3.3 V–compatible dual 4:1 multiplexers.

Is the exposed thermal pad on the TSSOP16 package electrically connected?

No. The exposed pad on the SOT403-1 (TSSOP16) package is not electrically connected to any internal node. Per Nexperia documentation, it may remain floating or be soldered to VCC-but must never be connected to GND or left unconnected with solder paste bridging adjacent pins.

How does the 74HCT253PWJ handle unused inputs?

All inputs-including S0, S1, 1I0–1I3, 2I0–2I3, 1OE, and 2OE-must be actively driven to a valid logic level. Floating inputs cause increased ICC, unpredictable output states, and potential oscillation. Unused select or data inputs should be tied to GND or VCC via 10 kΩ resistors; unused OE inputs must be held LOW to avoid unintended 3-state behavior.