onsemi NC7ST32M5X_F065

Overview

NC7ST32M5X_F065 from ON Semiconductor is a single 2-input high-performance CMOS OR gate with TTL-compatible inputs, 2 mA sink / −2 mA source output drive, <7 ns typical propagation delay at 5 V/15 pF, and operates over −40°C to +85°C. It serves as a logic-level combiner in low-power digital interface circuits.

For engineers reviewing the NC7ST32M5X_F065 datasheet, pinout, applications, or equivalent options, key selection criteria include input compatibility with TTL/CMOS systems, ultra-low quiescent current (<1 µA), SOT23-5 package footprint, and guaranteed operation across industrial temperature range.

Technical Context

The NC7ST32M5X_F065 implements a standard positive-logic OR function (Y = A + B) using advanced silicon-gate CMOS technology. Its TTL-compatible inputs accept VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V, enabling direct interfacing with legacy TTL and NMOS logic without level-shifting.

ESD protection diodes are integrated on all I/O pins relative to VCC and GND rails, and high-gain circuitry ensures robust noise immunity and reduced sensitivity to input edge rate-critical for reliable operation in mixed-signal environments with fast transient coupling.

Key Specifications

Pinout & Package

NC7ST32M5X_F065 is packaged in a 5-lead SOT23 (JEDEC MO-178, 1.6 mm body width), with pin 1 marked by a dot or bevelled edge. The package is RoHS-compliant and rated for 260°C reflow soldering.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input OR gate applications.

Compared with SN74LVC1G32DBVR and 74AUP1G32GW,125, the NC7ST32M5X_F065 uniquely supports direct 5 V TTL interfacing with sub-7 ns speed and <1 µA quiescent current-making it optimal for industrial 5 V glue logic where compatibility, speed, and low static power are jointly critical.

Availability

NC7ST32M5X_F065 is available at Aetrix Electronics and suitable for industrial sensor interface, microcontroller GPIO expansion, and legacy system glue logic requiring stable component supply, long-term lifecycle support, and consistent SOT23-5 packaging.

Supply support for NC7ST32M5X_F065 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

ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, cloud, and consumer markets.

The TinyLogic® HST family-including NC7ST32M5X_F065-is engineered for high-speed, low-power 5 V logic interfacing in space-constrained industrial and embedded applications, emphasizing TTL compatibility and minimal quiescent consumption.

FAQ

What is the maximum supply voltage rating for NC7ST32M5X_F065?

The absolute maximum supply voltage for NC7ST32M5X_F065 is +7.0 V, but the recommended operating range is strictly 4.5 V to 5.5 V per datasheet specifications. Operation outside this range may compromise timing, drive strength, or reliability. For sustained use, NC7ST32M5X_F065 must be powered within 4.5–5.5 V to guarantee full parameter compliance including propagation delay and output voltage levels.

Does NC7ST32M5X_F065 require pull-up or pull-down resistors on unused inputs?

Yes-per the NC7ST32M5X_F065 datasheet, unused inputs must be held HIGH or LOW; floating inputs are explicitly prohibited. This prevents increased ICC, erratic output behavior, and potential latch-up. For NC7ST32M5X_F065, tie unused A or B inputs directly to VCC or GND using short PCB traces-not high-value resistors-to ensure stable logic states and minimize noise susceptibility.

Is NC7ST32M5X_F065 pin-compatible with other TinyLogic OR gates like NC7ST08 or NC7ST86?

No-NC7ST32M5X_F065 is not pin-compatible with NC7ST08 (AND gate) or NC7ST86 (XOR gate), despite sharing the same SOT23-5 package. Pin assignments differ: NC7ST32M5X_F065 uses Pin 1=A, Pin 2=B, Pin 4=Y; NC7ST08 has identical mapping, but NC7ST86 swaps Pin 1/B and Pin 2/A. Always verify pinout per device-NC7ST32M5X_F065's function table and connection diagram must be referenced for correct layout.

What is the thermal resistance (θJA) of NC7ST32M5X_F065 in its SOT23-5 package?

The junction-to-ambient thermal resistance (θJA) for NC7ST32M5X_F065 in the SOT23-5 package is 300°C/W, measured under standard JEDEC test conditions (single-layer board, 1 in² copper pad). This value assumes no additional copper pour or thermal vias. For NC7ST32M5X_F065 deployed in thermally demanding environments, adding thermal relief pads and stitching vias beneath the GND pad significantly improves heat dissipation and lowers effective θJA.

Can NC7ST32M5X_F065 drive a 50 pF load while maintaining specified propagation delay?

Yes-NC7ST32M5X_F065 is characterized up to 50 pF load capacitance: tPLH/tPHL is 12–20 ns (max) at VCC = 5.0 V and CL = 50 pF. While the <7 ns typical value applies only at 15 pF, the device remains fully functional and within datasheet limits at 50 pF. For NC7ST32M5X_F065 designs targeting tight timing margins, load capacitance should be modeled and verified, especially with long PCB traces or multiple fanouts.