CD74HCT7038EN

Overview

The CD74HCT7038EN is a high-speed CMOS logic transceiver manufactured by Harris Corporation. It features one element with nine bits per element, supporting both inverting and non-inverting configurations. The device utilizes open-drain outputs and operates within a supply voltage range of 4.5V to 5.5V. It is housed in a 24-pin Dual In-Line Package (PDIP) suitable for through-hole mounting. The component is designed for reliable performance across an operating temperature range of -55°C to 125°C.

Feature Summary

• Supports simultaneous inverting and non-inverting signal transmission within a single integrated circuit element.
• Utilizes open-drain output architecture to facilitate wired-OR logic connections and flexible interfacing.
• Constructed using high-speed CMOS technology compatible with standard HCT logic families.

Applications

• Bidirectional data bus buffering and direction control in digital systems.
• Interface bridging between different voltage domains or logic families requiring open-drain capabilities.
• General-purpose logic level shifting and signal inversion tasks in embedded hardware.

Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by other entities. Confirm the package type is strictly 24-PDIP and check for RoHS compliance status, as older Harris parts may not meet current environmental regulations. Ensure the part number suffix 'EN' corresponds to the specific tape-and-reel or bulk packaging variant required for your assembly process.

Selection Notes

Select this component when a single IC must handle both inverting and non-inverting functions for a 9-bit wide bus. The open-drain output configuration is critical if the application requires wired-AND/OR logic structures or pull-up resistor flexibility. Ensure the system power supply remains within the 4.5V to 5.5V range to maintain proper logic thresholds and switching speeds.

Part Context

This component belongs to the 74HCT series of high-speed CMOS logic devices. The 74HCT family is designed to be pin-compatible and functionally equivalent to the older 74LS TTL series while offering the lower power consumption and higher noise immunity characteristic of CMOS technology. It serves as a bridge between legacy TTL designs and modern CMOS implementations.

Replacement Considerations

Check for equivalents from Texas Instruments, such as the SN74HCT7038, which shares the same logical function and pinout. Verify that any substitute maintains the open-drain output specification and the 24-PDIP package form factor to ensure mechanical compatibility.