Texas Instruments SN74AHCT367N

Overview

SN74AHCT367N from Texas Instruments is a hex buffer and line driver with 3-state outputs, designed for memory address, clock, and bus-oriented applications. It features dual 4-line/2-line configuration, TTL-compatible inputs (VIH = 2 V, VIL = 0.8 V), 5-V supply operation, and ±8-mA output drive capability. Used in telecom infrastructure and network switches where controlled bus isolation and voltage translation from 3.3 V to 5 V are required.

For engineers reviewing the SN74AHCT367N datasheet, SN74AHCT367N pinout, SN74AHCT367N application, or SN74AHCT367N equivalent, this device delivers verified 3-state bus driving performance with latch-up immunity (>100 mA), ESD robustness (±2000 V HBM/CDM), and guaranteed operation from –40°C to 125°C - critical for industrial and telecom system design.

Technical Context

The SN74AHCT367N implements two independent 3-state buffer groups: one with four noninverting channels (1A1–1A4 → 1Y1–1Y4) enabled by active-low 1OE, and another with two noninverting channels (2A1–2A2 → 2Y1–2Y2) enabled by active-low 2OE. Each output exhibits balanced rise/fall times and slow edge rates to suppress ringing on lightly loaded buses.

It operates strictly at 4.5 V to 5.5 V VCC, accepts TTL-level inputs up to 5.5 V regardless of supply, and guarantees VOH ≥ 3.8 V and VOL ≤ 0.44 V under 8-mA load. Propagation delay is 4.8 ns (max) at 15-pF load and 5 V, with enable/disable times under 9 ns.

Key Specifications

Pinout & Package

SN74AHCT367N is supplied in a 16-pin plastic DIP (Dual In-line Package) with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch (2.54 mm), compatible with standard PCB layouts and socketing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer with 3-state output applications.

Compared with SN74AHCT244N and SN74LVC367N, the SN74AHCT367N uniquely balances 5-V system compatibility, dual-group 3-state control, and robust ESD/latch-up performance - making it optimal for mixed-voltage industrial and telecom bus architectures where selective enable timing and legacy interface support are essential.

Availability

SN74AHCT367N is available at Aetrix Electronics and suitable for telecom infrastructure, industrial bus interface, and set-top box peripheral control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74AHCT367N 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

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The SN74AHCT367N belongs to TI's 74AHCT logic family, engineered for 5-V systems requiring TTL-compatible inputs, 3-state bus driving, and enhanced robustness in harsh operating environments.

FAQ

What is the maximum operating temperature for the SN74AHCT367N?

The SN74AHCT367N is rated for continuous operation from –40°C to +125°C ambient temperature, meeting extended-temperature requirements for industrial and telecom applications. This specification is validated per JEDEC JESD78 and confirmed in Section 5.3 of the official datasheet (SCLS418I, July 2024 revision). Thermal derating is not required within this range when used within recommended electrical conditions.

Does the SN74AHCT367N support 3.3-V input logic levels?

Yes, the SN74AHCT367N supports 3.3-V input logic levels directly: its VIH threshold is 2 V (min) and VIL is 0.8 V (max), ensuring reliable recognition of 3.3-V CMOS high/low states. Inputs tolerate up to 5.5 V regardless of VCC, enabling safe interfacing between 3.3-V controllers and 5-V buses without external level shifters - a key feature documented in Section 7.3 and Table 5.3.

How many independent 3-state groups does the SN74AHCT367N provide?

The SN74AHCT367N provides two independent 3-state buffer groups: Group 1 (pins 1OE, 1A1–1A4, 1Y1–1Y4) contains four channels, and Group 2 (pins 2OE, 2A1–2A2, 2Y1–2Y2) contains two channels. Each group has its own active-low output enable, allowing selective bus isolation - a functional distinction confirmed in the logic diagram (Figure 7-1) and function table (Table 7-1) of the SN74AHCT367N datasheet.

What package type is used for the SN74AHCT367N variant?

The SN74AHCT367N uses a 16-pin plastic Dual In-line Package (DIP) with 0.3-inch body width and through-hole leads. This is distinct from surface-mount variants like SN74AHCT367DR (SOIC) or SN74AHCT367DBR (SSOP). The 'N' suffix explicitly denotes the DIP package, as defined in TI's packaging nomenclature and verified in the Mechanical, Packaging, and Orderable Information section (Page 13) of SCLS418I.

Can unused inputs on the SN74AHCT367N be left floating?

No, unused inputs on the SN74AHCT367N must not be left floating. Section 8.4.1 of the datasheet mandates that all unused digital inputs be tied to either VCC or GND to prevent undefined logic states, increased supply current, and potential oscillation. For the SN74AHCT367N, tying unused A-inputs to GND is recommended unless system logic requires pull-up - consistent with TI's application note SCBA004 on floating CMOS inputs.