Texas Instruments CD74HCT367M

Overview

CD74HCT367M from Texas Instruments is a high-speed CMOS hex non-inverting buffer/line driver with three-state outputs, designed for bus interface and data routing in industrial control and instrumentation systems. It features dual independent three-state enable controls (1OE, 2OE), 4.5 V to 5.5 V operation, typical propagation delay of 9 ns at VCC = 5 V and CL = 15 pF, and drives up to 15 LSTTL loads.

For engineers reviewing the CD74HCT367M datasheet, CD74HCT367M pinout, CD74HCT367M application, or CD74HCT367M equivalent, this device is selected for robust 5-V logic-level translation, high-current bus driving, and temperature-stable operation across –55°C to 125°C environments in embedded control and test equipment.

Technical Context

The CD74HCT367M implements six independent non-inverting buffers, grouped as four channels controlled by 1OE (Pin 1) and two channels controlled by 2OE (Pin 15). Each output supports high-current sourcing/sinking (±4 mA at VOH/VOL) and transitions into high-impedance state when its respective OE is high.

It uses silicon-gate CMOS technology with TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V at VCC = 4.5–5.5 V), ensuring direct replacement for LS-TTL logic while delivering lower ICC (≤160 μA) and higher noise immunity (NIL/NIH = 30% of VCC).

Key Specifications

Pinout & Package

CD74HCT367M is housed in a 16-pin SOIC (D package), 9.90 mm × 3.90 mm body size, with standard 1.27 mm pitch and RoHS-compliant NiPdAu lead finish. MSL Level-1 rating supports uncompromised reflow assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex non-inverting buffer applications.

Compared with SN74HCT244N and CD74HCT367ME, the CD74HCT367M uniquely balances segmented three-state control (4+2 OE) in a compact SOIC footprint, making it optimal for space-constrained industrial interfaces requiring selective bus arbitration without layout changes.

Availability

CD74HCT367M is available at Aetrix Electronics and suitable for industrial control systems, automotive diagnostics, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD74HCT367M 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 specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability logic families.

The CD74HCT367M belongs to TI's HCT logic series, engineered for direct TTL compatibility and robust operation in demanding industrial and automotive environments where signal integrity and temperature resilience are critical.

FAQ

What is the maximum clock frequency supported by CD74HCT367M?

The CD74HCT367M is not a clocked device-it is a combinational buffer with no internal clock. Its usable data rate depends on propagation delay (9 ns typ) and system setup/hold timing. For clean edges on a 50-pF load, it reliably supports data transitions up to approximately 35 MHz, assuming proper PCB layout and termination.

Does CD74HCT367M support mixed-voltage operation (e.g., 3.3-V inputs with 5-V VCC)?

No. CD74HCT367M requires TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and is specified only for 4.5–5.5 V VCC. Applying 3.3-V logic inputs may result in marginal or non-functional switching; use a dedicated level translator or HCMOS variant (e.g., CD74HC367M) for 3.3-V interface.

Can CD74HCT367M outputs be paralleled for higher current drive?

No. Paralleling outputs is not recommended-even when enabled identically-due to minor propagation delay mismatches (<1 ns) and potential shoot-through current during transitions. For higher drive, use a dedicated bus driver IC or discrete MOSFET stage instead of output tying.

What is the purpose of the two separate enable pins (1OE and 2OE) on CD74HCT367M?

The dual enables (1OE on Pin 1, 2OE on Pin 15) provide independent control over two functional groups: 1OE gates Y1–Y4 (four buffers), and 2OE gates 2Y1–2Y2 (two buffers). This allows selective bus segmentation-for example, enabling only diagnostic lines while holding main data lines in high-Z during firmware updates.

Is CD74HCT367M pin-compatible with CD74HC367M?

Yes-CD74HCT367M and CD74HC367M share identical pinout, package (SOIC-16), and logic function. The key difference is input threshold compatibility: CD74HCT367M accepts TTL-level inputs (VIH ≥ 2.0 V), while CD74HC367M requires CMOS-level inputs (VIH ≥ 3.15 V at 4.5 V). Electrical substitution is possible only if source logic matches the target family's input spec.