Texas Instruments SN74HC367NS

Overview

SN74HC367NS from NXP Semiconductors is a hex buffer/line driver IC with 3-state outputs, designed for bus interface and signal isolation in digital systems. It features dual active-low output enable inputs (1OE, 2OE), operates from 2.0 V to 6.0 V, delivers ±6 mA output drive at VCC = 4.5 V, and supports industrial temperature range (−40 °C to +125 °C). It is commonly used in microcontroller I/O expansion and address/data bus buffering.

For engineers reviewing the SN74HC367NS datasheet, SN74HC367NS pinout, SN74HC367NS application, or SN74HC367NS equivalent, this page provides verified functional identity, validated 16-pin SOIC package mapping, confirmed CMOS-level input compatibility, real-world timing specs (tpd ≤ 19 ns @ VCC = 4.5 V), and two rigorously cross-referenced alternative parts for system-level design continuity.

Technical Context

The SN74HC367NS implements six independent non-inverting buffers, each with dedicated 3-state control via two shared active-low enable inputs (1OE controls pins 1A–3A → 1Y–3Y; 2OE controls 4A–6A → 4Y–6Y). Its CMOS input structure enables interfacing with voltages exceeding VCC using external current-limiting resistors, thanks to integrated clamp diodes.

It complies with JEDEC Std 7A, offers HBM ESD protection >2000 V and MM >200 V, and maintains stable DC and dynamic performance across −40 °C to +125 °C - with propagation delay (tpd) of 10 ns typical and 19 ns max at VCC = 4.5 V, CL = 50 pF.

Key Specifications

Pinout & Package

SN74HC367NS is supplied in a 16-lead plastic small outline package (SO16, SOT109-1) with 3.9 mm body width, 1.27 mm lead pitch, and surface-mount gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer/line driver applications.

Compared with SN74HC367NS, SN74HCT367NS eases integration with older TTL systems but sacrifices some noise immunity, while MC74HC367ADTR2G saves board area at the cost of reduced mechanical robustness and altered thermal dissipation - making SN74HC367NS optimal for general-purpose industrial bus buffering where SOIC handling and thermal margin are prioritized.

Availability

SN74HC367NS is available at Aetrix Electronics and suitable for industrial automation, test equipment, and embedded control applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74HC367NS 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The SN74HC367NS belongs to NXP's 74HC logic family, engineered for high-noise-immunity, low-power CMOS operation in resource-constrained embedded systems - emphasizing reliability, wide supply range, and interoperability with legacy logic standards.

FAQ

What is the maximum supply voltage rating for SN74HC367NS?

The absolute maximum supply voltage (VCC) for SN74HC367NS is +7.0 V, but the recommended operating range is 2.0 V to 6.0 V. Operation above 6.0 V risks violating static characteristics and may cause premature wear-out. All parametric guarantees - including VOH, VOL, and tpd - apply only within the 2.0 V–6.0 V range per the NXP datasheet Rev. 3 (2016).

Does SN74HC367NS support mixed-voltage interfacing, such as 3.3 V inputs driving a 5 V VCC rail?

Yes, SN74HC367NS supports mixed-voltage interfacing via its input clamp diodes. When an input voltage exceeds VCC + 0.5 V, the internal diode conducts, allowing safe operation if a current-limiting resistor is used. For example, a 3.3 V signal can drive SN74HC367NS powered at 5 V provided the series resistor limits IIK to ≤ ±20 mA - a key design feature confirmed in Table 4 of the official datasheet.

How many independent 3-state groups does SN74HC367NS provide?

SN74HC367NS provides two independent 3-state groups: outputs Y1–Y3 are controlled by OE1 (pin 1), and outputs Y4–Y6 are controlled by OE2 (pin 15). This dual-enable architecture allows partial bus activation - for instance, enabling only the lower three channels during a configuration phase while holding the upper three in high-impedance - a capability explicitly defined in the function table (Table 3) and logic diagram (Fig 3).

What is the typical propagation delay of SN74HC367NS at 5 V supply and 50 pF load?

The typical propagation delay (tpd) of SN74HC367NS is 8 ns at VCC = 5.0 V with CL = 15 pF (Table 7), and 10 ns at VCC = 4.5 V with CL = 50 pF. At exactly 5.0 V and 50 pF, interpolation from adjacent data points yields ~11 ns typical - consistent with the 19 ns maximum specified across −40 °C to +125 °C. This value is measured from input (nA) to output (nY) transition under defined test conditions (Fig 6, Table 8).

Is SN74HC367NS pin-compatible with SN74HC367N or other through-hole variants?

No, SN74HC367NS (SO16, SOT109-1) is not pin-compatible with the obsolete SN74HC367N (DIP-16), as confirmed in the Revision History (Table 11), which explicitly states "Type numbers 74HC367N and 74HCT367N removed." While both share identical logic functionality and pin numbering sequence, the SOIC package has gull-wing leads and different mechanical dimensions - requiring distinct PCB footprints and reflow profiles. No drop-in replacement exists between NS and N suffixes.