CD74AC374M Equivalent & Substitute Parts

Part Overview

The CD74AC374M is an active-status D-Type flip-flop logic integrated circuit manufactured by Texas Instruments. This 8-bit positive edge-triggered device operates in the 74AC logic family and is housed in a 20-SOIC surface mount package. The CD74AC374M features tri-state, non-inverted outputs and is designed for digital logic applications requiring high-speed data capture and storage.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when equivalent devices from other manufacturers meet the electrical and mechanical specifications of the application.

Substiute Parts

CD74AC374M

Texas InstrumentsIn Stock: 2057CD74AC374M Datasheet

Current PartRFQ

CD74AC374M96

Texas InstrumentsIn Stock: 1428CD74AC374M96 Datasheet

MFR RecommendedRFQ

MC74AC374DWR2G

onsemiIn Stock: 3778MC74AC374DWR2G Datasheet

DirectRFQ

MC74AC374DWG

onsemiIn Stock: 984MC74AC374DWG Datasheet

SimilarRFQ

MC74AC377DWR2G

onsemiIn Stock: 1739MC74AC377DWR2G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74AC374M is determined by the following criteria:

Core Compatibility Requirements:

• Logic family classification (74AC series)
• Device type (D-Type flip-flop)
• Number of bits per element (8-bit)
• Trigger type (positive edge)
• Package format (20-SOIC with 0.295", 7.50mm width)
• Mounting type (surface mount)

Electrical Performance Parameters:

• Supply voltage range must encompass or match the application requirements
• Output type configuration (tri-state and non-inverted outputs required for direct substitution)
• Output current capability (24mA high and low)
• Quiescent current (8 µA)

Acceptable Variations:

• Clock frequency may differ; higher frequencies indicate improved performance
• Propagation delay specifications may vary; lower delays indicate faster operation
• Input capacitance variations are acceptable within the 74AC logic family
• Operating temperature ranges may differ; narrower ranges are acceptable if they encompass the application temperature window

Substitute parts identified in this reference include Texas Instruments CD74AC374M96 and onsemi devices MC74AC374DWR2G, MC74AC374DWG, and MC74AC377DWR2G. The MC74AC377DWR2G represents a functional variant with different base product numbering but maintains core 8-bit D-Type flip-flop architecture.

Parameter Comparison

Engineering Selection Recommendations

CD74AC374M96 (Texas Instruments)

The CD74AC374M96 is a direct manufacturer variant of the CD74AC374M, differentiated by tape and reel packaging format. Both devices share identical electrical specifications within the 74AC logic family. The CD74AC374M96 is ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity level), indicating superior moisture handling characteristics. This part is suitable for high-volume manufacturing processes requiring automated tape and reel component handling. The CD74AC374M96 maintains the extended operating temperature range of -55°C to 125°C, matching the primary part specification.

MC74AC374DWR2G (onsemi)

The MC74AC374DWR2G is manufactured by onsemi and provides enhanced electrical performance characteristics. This device operates at 155 MHz clock frequency with 9.5ns maximum propagation delay, representing faster operation compared to the CD74AC374M. The MC74AC374DWR2G is supplied in tape and reel format and is ROHS3 compliant with MSL rating of 3 (168 hours). The supply voltage range extends to 6V maximum, providing broader compatibility with higher voltage applications. The operating temperature range is -40°C to 85°C, which is narrower than the primary part but suitable for standard industrial applications. Input capacitance is reduced to 4.5 pF, indicating improved signal integrity characteristics.

MC74AC374DWG (onsemi)

The MC74AC374DWG is functionally equivalent to the MC74AC374DWR2G with identical electrical specifications. This device is supplied in tube packaging format rather than tape and reel, making it suitable for manual assembly or lower-volume production processes. All electrical parameters, compliance certifications, and performance characteristics match the MC74AC374DWR2G variant.

MC74AC377DWR2G (onsemi)

The MC74AC377DWR2G is a functional variant within the 74AC logic family with a different base product number (74AC377 versus 74AC374). This device maintains 8-bit D-Type flip-flop architecture with positive edge triggering and non-inverted outputs. The output type specification differs in that tri-state capability is not explicitly stated; this device features non-inverted outputs only. Clock frequency is 140 MHz with 10ns maximum propagation delay. This part is suitable for applications where tri-state output capability is not required. The MC74AC377DWR2G is ROHS3 compliant, supplied in tape and reel format, with MSL rating of 3 (168 hours).

Frequently Asked Questions (FAQ)

Q: Can the CD74AC374M be directly replaced with CD74AC374M96?

A: Yes. Both devices are manufactured by Texas Instruments within the 74AC logic family and share identical electrical specifications. The primary difference is packaging format: CD74AC374M is supplied in bulk, while CD74AC374M96 is supplied in tape and reel format. Direct substitution is appropriate when the application accommodates tape and reel component handling.

Q: What are the key differences between Texas Instruments and onsemi 74AC374 devices?

A: The onsemi MC74AC374DWR2G and MC74AC374DWG devices operate at higher clock frequencies (155 MHz versus 125 MHz) and exhibit faster propagation delays (9.5ns versus 10.8ns). The onsemi devices have a narrower operating temperature range (-40°C to 85°C versus -55°C to 125°C) and reduced input capacitance (4.5 pF versus 10 pF). Supply voltage range extends to 6V for onsemi devices compared to 5.5V for the Texas Instruments CD74AC374M. All devices maintain identical output current capability and quiescent current specifications.

Q: Is the MC74AC377DWR2G a suitable substitute for the CD74AC374M?

A: The MC74AC377DWR2G is functionally compatible for applications that do not require tri-state output capability. Both devices are 8-bit D-Type flip-flops with positive edge triggering and non-inverted outputs. The MC74AC377DWR2G operates at 140 MHz with 10ns propagation delay. Applications requiring tri-state output control should use MC74AC374DWR2G or MC74AC374DWG instead.

Q: What is the difference between tape and reel and tube packaging?

A: Tape and reel (TR) packaging supplies components on continuous carrier tape wound on reels, suitable for automated pick-and-place assembly equipment. Tube packaging supplies components in plastic tubes, suitable for manual assembly or lower-volume production processes. Both packaging formats contain identical electronic components; the selection depends on manufacturing process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: The CD74AC374M primary part does not specify RoHS status. All identified substitute parts (CD74AC374M96, MC74AC374DWR2G, MC74AC374DWG, and MC74AC377DWR2G) are ROHS3 compliant, meeting current environmental and hazardous substance restrictions.

Q: What is the moisture sensitivity level (MSL) and why does it matter?

A: Moisture sensitivity level indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before soldering. MSL 1 (unlimited) indicates no time restriction. MSL 3 (168 hours) indicates the component must be soldered within 168 hours of exposure to standard ambient conditions. The CD74AC374M96 with MSL 1 provides greater flexibility in storage and handling compared to onsemi devices with MSL 3.

Q: Can I use MC74AC374DWG instead of MC74AC374DWR2G?

A: Yes. Both devices are manufactured by onsemi with identical electrical specifications and performance characteristics. The only difference is packaging format: MC74AC374DWR2G is supplied in tape and reel format, while MC74AC374DWG is supplied in tube format. Selection depends on manufacturing process requirements and component handling equipment.

Q: What operating temperature range should I select for my application?

A: The CD74AC374M and CD74AC374M96 support -55°C to 125°C operating temperature range. The onsemi devices (MC74AC374DWR2G, MC74AC374DWG, and MC74AC377DWR2G) support -40°C to 85°C range. Select the part with an operating temperature range that encompasses your application's minimum and maximum operating conditions.

Q: Are there any supply voltage compatibility issues between substitute parts?

A: The CD74AC374M and CD74AC374M96 operate at 1.5V to 5.5V supply voltage. The onsemi devices operate at 2V to 6V supply voltage. Applications operating below 2V must use Texas Instruments devices. Applications requiring supply voltages above 5.5V must use onsemi devices. For applications within the 2V to 5.5V range, all devices are compatible.