Texas Instruments CD74HC367E

Overview

CD74HC367E 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 3-state enables (1OE, 2OE), 6-channel non-inverting logic, ±35 mA output drive capability, and operates across 2 V to 6 V supply range with -55℃ to 125℃ temperature rating.

For engineers reviewing the CD74HC367E datasheet, CD74HC367E pinout, CD74HC367E application, or CD74HC367E equivalent, key selection criteria include its 8 ns typical propagation delay at 5 V/15 pF, 15 LSTTL load drive strength, PDIP-16 package compatibility with legacy through-hole layouts, and HC-family CMOS logic level compatibility.

Technical Context

The CD74HC367E implements six independent non-inverting buffer channels grouped into two 3-state control domains: OE1 controls Y1–Y4 (pins 3,5,7,10), and OE2 controls Y5–Y6 (pins 11,13). Each output supports high-current sourcing/sinking (±35 mA) and exhibits balanced tPLH/tPHL timing for clean signal integrity on shared buses.

Its HC logic family ensures rail-to-rail input thresholds (VIH = 3.15 V, VIL = 1.35 V at VCC = 4.5 V), 10 μA max input leakage, and 10 pF input capacitance - enabling robust noise immunity (30% of VCC) and low dynamic power consumption (CPD = 40 pF) in mixed-signal environments.

Key Specifications

Pinout & Package

CD74HC367E uses a 16-pin plastic dual in-line package (PDIP-N) with 19.31 mm × 6.35 mm body size and 2.54 mm lead pitch, suitable for through-hole prototyping and legacy PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC244N and CD74HCT367E, the CD74HC367E uniquely balances wide-voltage operation (2–6 V), dual-group 3-state control, and industrial temperature range - making it optimal for upgrade paths requiring backward compatibility and enhanced environmental resilience.

Availability

CD74HC367E is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automated test equipment signal routing, military data acquisition systems, and legacy industrial controller upgrades requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD74HC367E 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 and industrial-grade IC design.

The CD74HC367E belongs to TI's CD74HC high-speed CMOS logic series, engineered for robust performance in harsh environments - targeting applications demanding wide temperature operation, low power, and noise-immune digital interfacing.

FAQ

What is the maximum output current rating for CD74HC367E?

The CD74HC367E supports ±35 mA continuous output current per channel, as specified in its Absolute Maximum Ratings table. This rating enables direct drive of 15 LSTTL loads and ensures signal integrity across high-capacitance buses. Exceeding this limit risks permanent damage; sustained operation should remain within recommended electrical characteristics (e.g., 6 mA sink/source for VOH/VOL compliance at 4.5 V).

Does CD74HC367E support 3.3 V logic systems?

Yes, CD74HC367E fully supports 3.3 V operation: its HC-family specification guarantees functional operation from 2 V to 6 V, with VIH = 2.31 V and VIL = 1.09 V at VCC = 3.3 V (interpolated from datasheet VIH/VIL curves). Input thresholds and output swing remain compatible with standard 3.3 V CMOS logic without level translation.

How does the dual 3-state enable architecture of CD74HC367E improve system design?

The CD74HC367E's separate 1OE (pins 1, 15) controls Y1–Y4, while 2OE governs Y5–Y6 - enabling independent bus segment control. This allows partial bus isolation during fault recovery or multi-master arbitration, reducing contention risk and simplifying timing analysis compared to single-OE alternatives like SN74HC244N.

What is the typical propagation delay of CD74HC367E at 3.3 V supply?

While the datasheet specifies 8 ns typical tPD at VCC = 5 V/CL = 15 pF, propagation delay increases at lower voltages: at 3.3 V and CL = 15 pF, typical tPD is approximately 14 ns (extrapolated from HC family delay vs. VCC curves). For precise timing closure, designers should reference the 3.3 V row in Table 5.5 Switching Characteristics or simulate using TI's SPICE models.

Is CD74HC367E pin-compatible with older 74LS244 devices?

No - CD74HC367E is not pin-compatible with 74LS244. Though both are octal buffers, CD74HC367E has only six channels and dual OE pins (1,15), whereas 74LS244 uses eight channels and two OE pins (1,19) in a 20-pin package. Direct replacement requires PCB redesign; SN74HC244N (20-pin PDIP) offers true pin compatibility but lacks dual OE segmentation.