Texas Instruments CD74HC241M96E4

Overview

CD74HC241M96E4 from Texas Instruments is a non-inverting octal buffer/line driver with three-state outputs, featuring one active-high (1OE) and one active-low (2OE) output enable control. It operates across 2 V to 6 V, delivers 7.8 mA sink/source drive per output at 6 V, and achieves 9 ns typical propagation delay (VCC = 4.5 V, CL = 15 pF). It is used in bidirectional bus interfacing for industrial microcontroller peripheral expansion.

For engineers reviewing the CD74HC241M96E4 datasheet, CD74HC241M96E4 pinout, CD74HC241M96E4 application, or CD74HC241M96E4 equivalent, key selection criteria include its dual-enable logic configuration, wide supply range, high-current bus driving capability, and –55°C to +125°C operating temperature support for rugged embedded systems.

Technical Context

The CD74HC241M96E4 implements eight independent non-inverting buffer channels, each with three-state output control governed by two separate enables: 1OE (active-high) controls Y1–Y4, and 2OE (active-low) controls Y5–Y8. This asymmetric enable architecture allows selective activation of upper and lower nibbles without requiring external logic inversion.

All inputs are buffered CMOS, providing high noise immunity (NIL/NIH = 30% of VCC at 5 V), while outputs deliver LSTTL-compatible drive strength (15 LSTTL loads) and fast transition times (12–15 ns typical at 4.5 V). The device shares identical pinout with CD74HC240 and CD74HC244 but differs functionally in enable polarity assignment.

Key Specifications

Pinout & Package

CD74HC241M96E4 is packaged in a 20-pin SOIC (Small Outline Integrated Circuit) with nominal body size 12.80 mm × 7.50 mm and standard JEDEC MS-013AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC241N and CD74HCT241M96E4, the CD74HC241M96E4 provides optimal balance of supply voltage flexibility (2–6 V), low quiescent current (<160 μA), and surface-mount reliability-making it the preferred choice for new industrial and aerospace designs where mixed-voltage interoperability and thermal efficiency are prioritized.

Availability

CD74HC241M96E4 is available at Aetrix Electronics and suitable for industrial automation, avionics subsystems, and military-grade data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD74HC241M96E4 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 connectivity technologies, with decades of heritage in high-reliability logic and interface solutions.

The CD74HC241M96E4 belongs to TI's High-Speed CMOS Logic family, designed specifically for robust, low-power bus interfacing in harsh-environment applications demanding wide temperature operation and noise resilience.

FAQ

What is the maximum output current per pin for CD74HC241M96E4?

The CD74HC241M96E4 supports ±7.8 mA output sink/source current per pin at VCC = 6 V, as specified in the Electrical Characteristics table for '241 devices. This rating applies under steady-state DC conditions and ensures reliable drive of 15 LSTTL loads. Exceeding this value may cause output voltage degradation or thermal stress.

Does CD74HC241M96E4 support 3.3 V logic levels?

Yes, CD74HC241M96E4 fully supports 3.3 V operation: its recommended supply range is 2 V to 6 V, and input thresholds scale with VCC (VIH = 3.15 V min, VIL = 1.35 V max at VCC = 4.5 V). At 3.3 V supply, it reliably interfaces with standard 3.3 V CMOS outputs without level shifting.

How does the dual-enable architecture of CD74HC241M96E4 differ from CD74HC244M96E4?

CD74HC241M96E4 uses one active-high (1OE) and one active-low (2OE) enable to control two independent nibbles (Y1–Y4 and Y5–Y8), whereas CD74HC244M96E4 uses two active-low enables (1OE and 2OE). This difference eliminates the need for inverters when implementing asymmetric enable timing in CD74HC241M96E4-based designs.

What is the typical propagation delay of CD74HC241M96E4 at 5 V supply?

At VCC = 4.5 V and CL = 15 pF, CD74HC241M96E4 exhibits 9 ns typical propagation delay (tPLH/tPHL), as documented in Section 5.8 of the datasheet. At exactly 5 V, interpolation yields ~9.2 ns typical - consistent with the 4.5 V and 6 V data points (9 ns and 19 ns respectively).

Is CD74HC241M96E4 pin-compatible with CD74HC240M96E4?

Yes, CD74HC241M96E4 shares identical pinout and package (SOIC-20) with CD74HC240M96E4 and CD74HC244M96E4, as confirmed in the Pin Configuration section. However, functional differences exist: CD74HC240 is inverting, while CD74HC241 and CD74HC244 are non-inverting with distinct enable polarities.