Texas Instruments CD74HC368M96

Overview

CD74HC368M96 from Texas Instruments is a high-speed CMOS hex inverting buffer/line driver with three-state outputs, designed for bus interface applications requiring non-inverting logic polarity inversion and bidirectional bus control. It features dual independent three-state enable inputs (1OE, 2OE), 6-channel inverting buffering, and operates across 2 V to 6 V supply range with propagation delay of 8 ns at 5 V/15 pF.

For engineers reviewing the CD74HC368M96 datasheet, CD74HC368M96 pinout, CD74HC368M96 application, or CD74HC368M96 equivalent, key selection factors include its inverting logic function, SOIC-16 package compatibility, -55°C to +125°C operating temperature range, and ability to drive up to 15 LSTTL loads while maintaining low power consumption versus TTL alternatives.

Technical Context

The CD74HC368M96 implements six independent inverting buffer channels, grouped as four channels controlled by OE1 (pins 1, 19) and two channels controlled by OE2 (pin 15), enabling selective bus segment isolation. Its silicon-gate CMOS architecture delivers balanced tPLH/tPHL propagation delays and transition times, supporting high-speed operation into large capacitive bus loads.

It supports wide VCC operation (2–6 V), exhibits high noise immunity (NIL/NIH = 30% of VCC at 5 V), and provides three-state output leakage current ≤ ±5 μA over full temperature range. Input leakage remains ≤ ±1 μA, and supply current ICC is ≤ 160 μA at -55°C to +125°C.

Key Specifications

Pinout & Package

CD74HC368M96 is housed in a 16-pin SOIC (D) package with nominal dimensions 9.90 mm × 3.90 mm and standard JEDEC MS-012AC footprint. The package is RoHS-compliant, lead-finished with NIPDAU/SN, and rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC368N and CD74HCT368M96, CD74HC368M96 uniquely supports 2–6 V operation and -55°C to +125°C performance, making it the only option for wide-temperature, mixed-voltage bus interface applications without redesigning power or logic families.

Availability

CD74HC368M96 is available at Aetrix Electronics and suitable for industrial automation, avionics data buses, and automotive body control modules requiring stable component supply across extreme temperature ranges and long production lifecycles.

Supply support for CD74HC368M96 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 IC design and manufacturing.

CD74HC368M96 belongs to TI's CD74HC high-speed CMOS logic family, engineered for robust bus interface applications demanding wide voltage operation, extended temperature resilience, and low-power performance in mission-critical systems.

FAQ

What logic function does CD74HC368M96 implement?

CD74HC368M96 implements six independent inverting buffer channels with three-state outputs. Each input (A) drives a corresponding inverted output (Y), and both output groups (Y1–Y4 and Y5–Y6) are controlled by separate active-low enable inputs (1OE and 2OE). This configuration enables selective bus segment control in multi-drop digital systems, and the CD74HC368M96 is explicitly defined as an inverting buffer - unlike the non-inverting CD74HC367M96.

Does CD74HC368M96 support 3.3 V operation?

Yes, CD74HC368M96 fully supports 3.3 V operation as part of its 2 V to 6 V supply range. At VCC = 3.3 V, it maintains guaranteed VIH ≥ 2.31 V and VIL ≤ 1.1 V (30% noise margin), delivers tPD ≤ 18 ns (max) at CL = 50 pF, and sustains ±35 mA output drive - making it directly interoperable with 3.3 V microcontrollers and FPGAs without level translation. The CD74HC368M96 datasheet confirms HC-type specifications apply across this entire voltage range.

What is the maximum bus capacitance CD74HC368M96 can drive reliably?

CD74HC368M96 is characterized to drive up to 15 LSTTL loads, equivalent to approximately 75 pF of total bus capacitance (assuming 5 pF per LSTTL input). With its ±35 mA output drive strength and 8 ns typical propagation delay at 5 V/15 pF, the CD74HC368M96 maintains clean signal edges into 50–100 pF loads in practice - verified by TI's switching characteristics tables showing tPD ≤ 27 ns and tt ≤ 15 ns at CL = 50 pF and VCC = 6 V.

How does CD74HC368M96 differ from CD74HCT368M96?

CD74HC368M96 uses CMOS input thresholds (VIH = 70% VCC, VIL = 30% VCC), enabling operation from 2–6 V, while CD74HCT368M96 uses TTL-compatible inputs (VIH = 2 V min, VIL = 0.8 V max) and is restricted to 4.5–5.5 V. Both share identical pinout, inverting logic function, and three-state behavior, but CD74HC368M96 supports broader voltage flexibility and lower static current - critical for mixed-supply or battery-powered systems where the CD74HC368M96 is the preferred choice.

Is CD74HC368M96 pin-compatible with SN74LS368?

No, CD74HC368M96 is not pin-compatible with SN74LS368. While both are hex inverting three-state buffers, SN74LS368 uses a different pin assignment: its OE inputs are shared (single enable), and output/input pairing differs. The CD74HC368M96 follows TI's HC368-specific pinout (e.g., 1OE on pin 1, 1A1 on pin 2, 1Y1 on pin 3), whereas SN74LS368 places GND on pin 8 and VCC on pin 16 - incompatible with SOIC-16 layout. Direct replacement requires PCB redesign.