CD74HC652EN Equivalent & Substitute Parts

Part Overview

The CD74HC652EN is a non-inverting transceiver IC manufactured by Texas Instruments, designed for 8-bit data transmission with 3-state output capability. This component operates across a 2V to 6V supply voltage range and is housed in a 24-pin DIP package for through-hole mounting applications.

The CD74HC652EN is classified as obsolete. Locating equivalent or substitute components is necessary for ongoing system maintenance, design updates, or when original inventory becomes unavailable. Substitute parts must maintain functional compatibility while accommodating differences in packaging, electrical performance, and supply voltage specifications.

Substiute Parts

CD74HC652EN

Texas InstrumentsIn Stock: 1105CD74HC652EN Datasheet

Current PartRFQ

CD74AC652M96

Texas InstrumentsIn Stock: 799CD74AC652M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC652EN is determined by the following critical parameters:

• Logic Function: Transceiver, Non-Inverting with 1 Element and 8 Bits per Element
• Output Configuration: 3-State output capability
• Operating Temperature Range: -55°C ~ 125°C (TA)
• Compliance: ROHS3 Compliant, REACH Unaffected
• Packaging Compatibility: Through-hole or surface-mount alternatives

The CD74AC652M96 qualifies as a manufacturer-recommended substitute. While it maintains the same logic function, element count, and bit configuration, it operates at a different supply voltage range (1.5V ~ 5.5V) and provides higher output current capability (24mA vs. 7.8mA). The primary trade-off is the transition from through-hole DIP packaging to surface-mount SOIC packaging.

Parameter Comparison

Engineering Selection Recommendations

The CD74AC652M96 is the manufacturer-recommended substitute for the CD74HC652EN. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Selection between these parts depends on application constraints:

• Through-hole requirement: The CD74HC652EN's DIP package is necessary for applications requiring through-hole mounting on existing PCB designs.
• Surface-mount design: The CD74AC652M96 in SOIC packaging is suitable for new designs or PCB rework where surface-mount technology is employed.
• Supply voltage range: The CD74HC652EN supports 2V minimum supply voltage, while the CD74AC652M96 requires 1.5V minimum. Applications operating below 1.5V cannot use the AC variant.
• Output current requirements: The CD74AC652M96 provides 24mA output current versus 7.8mA for the CD74HC652EN. Higher current capability may benefit applications with increased fan-out or load requirements.

Both components share identical operating temperature range (-55°C ~ 125°C) and functional architecture, supporting direct functional substitution where packaging and voltage constraints permit.

Frequently Asked Questions (FAQ)

Q: Can the CD74AC652M96 directly replace the CD74HC652EN in an existing through-hole PCB design?

A: No. The CD74AC652M96 uses 24-SOIC surface-mount packaging, while the CD74HC652EN uses 24-DIP through-hole packaging. PCB layout modification and component mounting method changes are required. Alternatively, a through-hole DIP package variant of the 74AC652 series may be available from the manufacturer.

Q: What is the primary difference between the 74HC and 74AC series?

A: The 74HC series operates at 2V ~ 6V supply voltage with lower output current (7.8mA). The 74AC series operates at 1.5V ~ 5.5V supply voltage with higher output current (24mA). Both maintain the same logic function and operating temperature range.

Q: Are there compatibility concerns when substituting the CD74AC652M96 for the CD74HC652EN?

A: Functional compatibility is maintained for logic operation. However, verify that your application's supply voltage range accommodates the 1.5V ~ 5.5V specification of the CD74AC652M96. If your system operates below 1.5V or above 5.5V, the substitute is not suitable. Additionally, the higher output current of the AC variant may affect circuit behavior in current-sensitive applications.

Q: Is the CD74HC652EN still available for purchase?

A: The CD74HC652EN is classified as obsolete. Availability is limited to existing inventory from authorized distributors. The CD74AC652M96, classified as active, is the recommended path forward for new designs or when original stock is depleted.

Q: Do both parts maintain the same compliance certifications?

A: Yes. Both the CD74HC652EN and CD74AC652M96 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.