CD74HC573M96G4 Equivalent & Substitute Parts

Part Overview

The CD74HC573M96G4 is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring 1 channel with 8:8 circuit configuration and tri-state output capability. This 20-SOIC surface mount device operates across a 2V to 6V supply voltage range and is designed for digital logic applications requiring transparent latch functionality.

The CD74HC573M96G4 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers including Harris Corporation, Nexperia USA Inc., and onsemi, offering continued design support and component availability for new and existing applications.

Key Parameters

Parameter	Value
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8
Output Type	Tri-State
Voltage Supply Range	2V ~ 6V
Independent Circuits	1
Delay Time - Propagation	30ns
Current Output High/Low	7.8mA / 7.8mA
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	20-SOIC (0.295", 7.50mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CD74HC573M96G4 are classified based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Logic Type: D-Type Transparent Latch
Circuit Configuration: 8:8
Output Type: Tri-State
Voltage Supply Range: 2V ~ 6V
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount

Secondary Compatibility Factors:

Propagation Delay Time: 30ns (baseline; faster alternatives acceptable)
Current Output High/Low: 7.8mA / 7.8mA
Operating Temperature Range: -55°C ~ 125°C (or subset thereof)
RoHS Compliance Status
Moisture Sensitivity Level

Parts meeting all primary criteria are considered direct parametric equivalents. Variations in propagation delay, operating temperature range, and moisture sensitivity level do not preclude substitution when the application requirements permit.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Logic Type	Circuit	Output Type	Voltage Supply	Propagation Delay	Operating Temp	Package	Product Status	RoHS Status
CD74HC573M96G4	Texas Instruments	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	30ns	-55°C ~ 125°C	20-SOIC	Discontinued	ROHS3 Compliant
CD74HC373M96	Harris Corporation	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	30ns	-55°C ~ 125°C	20-SOIC	Obsolete	RoHS Non-Compliant
CD74HC573M96	Texas Instruments	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	30ns	-55°C ~ 125°C	20-SOIC	Active	ROHS3 Compliant
74HC573D,653	Nexperia USA Inc.	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	14ns	-40°C ~ 125°C	20-SOIC	Active	ROHS3 Compliant
74HC573D-Q100,118	Nexperia USA Inc.	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	14ns	-40°C ~ 125°C	20-SOIC	Active	ROHS3 Compliant
MC74HC573ADWG	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	26ns	-55°C ~ 125°C	20-SOIC	Active	ROHS3 Compliant
MM74HC573WMX	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	15ns	-40°C ~ 85°C	20-SOIC	Active	ROHS3 Compliant
MC74HC573ADWR2G	onsemi	D-Type Transparent Latch	8:8	Tri-State	2V ~ 6V	26ns	-55°C ~ 125°C	20-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Recommended Primary Substitutes (Active Status, Full Compliance):

CD74HC573M96 (Texas Instruments) is the direct equivalent replacement, maintaining identical electrical specifications and operating temperature range while offering active product status and ROHS3 compliance. This part is available in Cut Tape and Digi-Reel packaging with 16,090 units in stock.

MC74HC573ADWR2G (onsemi) provides parametric equivalence with 26ns propagation delay and full operating temperature range (-55°C ~ 125°C), suitable for applications requiring extended temperature performance. ROHS3 compliant with 6,886 units available.

MC74HC573ADWG (onsemi) offers equivalent performance with 26ns propagation delay and full temperature range, available in Tube packaging with 935 units in stock.

Alternative Substitutes (Active Status, Reduced Temperature Range):

74HC573D,653 (Nexperia USA Inc.) and 74HC573D-Q100,118 (Nexperia USA Inc.) feature improved propagation delay of 14ns but operate within -40°C ~ 125°C temperature range. The Q100,118 variant includes AEC-Q100 automotive qualification. These parts are suitable for applications not requiring the full -55°C lower temperature limit.

MM74HC573WMX (onsemi) provides the fastest propagation delay at 15ns with operating range of -40°C ~ 85°C. This part is appropriate for applications with reduced temperature requirements and where faster switching performance is beneficial.

Not Recommended:

CD74HC373M96 (Harris Corporation) is obsolete and RoHS non-compliant, making it unsuitable for new designs despite electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can I use CD74HC573M96 as a direct replacement for CD74HC573M96G4?

A: Yes. CD74HC573M96 from Texas Instruments is a direct parametric equivalent with identical electrical specifications, operating temperature range, and package configuration. Both are ROHS3 compliant 20-SOIC devices with 30ns propagation delay and 2V ~ 6V supply voltage range.

Q: What is the difference between the Nexperia 74HC573D,653 and the original part?

A: The Nexperia part maintains all primary electrical and mechanical parameters but features improved propagation delay of 14ns versus 30ns. The operating temperature range is reduced to -40°C ~ 125°C. This part is suitable for applications not requiring operation below -40°C.

Q: Is the onsemi MC74HC573ADWG suitable for my application requiring -55°C operation?

A: Yes. MC74HC573ADWG operates across -55°C ~ 125°C, matching the original part's full temperature range. Propagation delay is 26ns, slightly faster than the original 30ns specification.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel, Tape & Reel (TR), Tube, and Bulk. All maintain the 20-SOIC (0.295", 7.50mm Width) physical package configuration required for direct PCB compatibility.

Q: Are all substitute parts RoHS compliant?

A: All recommended active substitutes are ROHS3 compliant. CD74HC373M96 from Harris Corporation is RoHS non-compliant and should not be used in new designs subject to RoHS requirements.

Q: Does propagation delay variation affect substitutability?

A: Propagation delay variations among substitutes (ranging from 14ns to 30ns) do not preclude substitution when application timing requirements permit faster operation. Verify that your circuit design accommodates the faster switching characteristics of alternatives such as the Nexperia or onsemi MM74HC573WMX variants.

Q: What is the significance of the Q100,118 designation on the Nexperia part?

A: The Q100,118 designation indicates AEC-Q100 automotive qualification, making 74HC573D-Q100,118 suitable for automotive applications requiring industry-standard reliability and qualification documentation.

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