MM74HC175MX Equivalent & Substitute Parts

Part Overview

The MM74HC175MX is a D-type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 4 bits per element in a 16-SOIC surface mount package. This component functions as a master reset flip-flop with complementary outputs, operating across a 2V to 6V supply voltage range. The part is currently active in production with 7,863 units in stock.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for compatible alternatives from different manufacturers while maintaining functional equivalence.

Key Parameters

Parameter	MM74HC175MX
Manufacturer	onsemi
Series	74HC
Type	D-Type Flip-Flop
Number of Elements	1
Number of Bits per Element	4
Function	Master Reset
Output Type	Complementary
Clock Frequency	70 MHz
Max Propagation Delay @ 6V, 50pF	26 ns
Trigger Type	Positive Edge
Voltage - Supply	2V ~ 6V
Current - Output High, Low	5.2 mA, 5.2 mA
Current - Quiescent (Iq)	8 µA
Input Capacitance	5 pF
Operating Temperature	-40°C ~ 85°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Packaging Format	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the MM74HC175MX is determined by the following critical parameters:

Base product number (74HC175) ensures functional equivalence
Package type (16-SOIC with 0.154" width) ensures mechanical compatibility
D-Type flip-flop configuration with 1 element and 4 bits per element
Master reset function and complementary output type
Supply voltage range (2V ~ 6V minimum requirement)
Positive edge trigger type
Surface mount mounting type

Substitute parts are grouped into three categories:

Direct Substitutes (Same Packaging): Parts with identical 16-SOIC (0.154", 3.90mm) packaging and Tape & Reel format, allowing direct replacement without PCB layout modification.

Compatible Substitutes (Same Package Family): Parts with 16-SOIC packaging but different width specifications (0.209", 5.30mm) or alternative packaging formats (Tube, Cut Tape), requiring verification of PCB footprint compatibility.

Functional Equivalents (Extended Temperature Range): Parts meeting all electrical specifications but with extended operating temperature ranges (-55°C ~ 125°C), suitable for applications requiring broader temperature performance.

Parameter Comparison

Part Number	Manufacturer	Clock Frequency	Max Propagation Delay @ 6V, 50pF	Operating Temperature	Current - Quiescent (Iq)	Input Capacitance	Package / Case	Packaging Format	Product Status	RoHS Status
MM74HC175MX	onsemi	70 MHz	26 ns	-40°C ~ 85°C	8 µA	5 pF	16-SOIC (0.154", 3.90mm)	Tape & Reel (TR)	Active	ROHS3 Compliant
MC74HC175ADG	onsemi	35 MHz	22 ns	-55°C ~ 125°C	4 µA	10 pF	16-SOIC (0.154", 3.90mm)	Tube	Active	ROHS3 Compliant
MC74HC175ADR2G	onsemi	35 MHz	22 ns	-55°C ~ 125°C	4 µA	10 pF	16-SOIC (0.154", 3.90mm)	Tape & Reel (TR)	Active	ROHS3 Compliant
SN74HC175D	Texas Instruments	60 MHz	26 ns	-40°C ~ 85°C	8 µA	3 pF	16-SOIC (0.154", 3.90mm)	—	Discontinued at DiGi Electronics	ROHS3 Compliant
SN74HC175DR	Texas Instruments	60 MHz	26 ns	-40°C ~ 85°C	8 µA	3 pF	16-SOIC (0.154", 3.90mm)	Cut Tape (CT) & Digi-Reel®	Active	ROHS3 Compliant
SN74HC175DT	Texas Instruments	60 MHz	26 ns	-40°C ~ 85°C	8 µA	3 pF	16-SOIC (0.154", 3.90mm)	—	Discontinued at DiGi Electronics	ROHS3 Compliant
74HC175D,653	Nexperia USA Inc.	89 MHz	30 ns	-40°C ~ 125°C	8 µA	4.6 pF	16-SOIC (0.154", 3.90mm)	Tape & Reel (TR)	Active	ROHS3 Compliant
CD74HC175M	Harris Corporation	35 MHz	30 ns	-55°C ~ 125°C	8 µA	10 pF	16-SOIC (0.154", 3.90mm)	Tube	Obsolete	RoHS non-compliant
CD74HC175M96	Texas Instruments	35 MHz	30 ns	-55°C ~ 125°C	8 µA	10 pF	16-SOIC (0.154", 3.90mm)	Tape & Reel (TR)	Active	ROHS3 Compliant
SN74HC175NSR	Texas Instruments	60 MHz	26 ns	-40°C ~ 85°C	8 µA	3 pF	16-SOIC (0.209", 5.30mm)	Tape & Reel (TR)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

SN74HC175DR (Texas Instruments) and 74HC175D,653 (Nexperia USA Inc.) are the preferred substitutes. Both maintain active product status, ROHS3 compliance, and identical package dimensions (16-SOIC 0.154" width). SN74HC175DR offers Cut Tape & Digi-Reel packaging with 7,548 units in stock. The 74HC175D,653 provides the highest clock frequency specification (89 MHz) with 9,791 units available in Tape & Reel format.

Secondary Substitutes (Extended Temperature Range):

MC74HC175ADR2G (onsemi) and CD74HC175M96 (Texas Instruments) provide extended operating temperature range (-55°C ~ 125°C) while maintaining ROHS3 compliance and identical package dimensions. MC74HC175ADR2G is available in Tape & Reel format with 1,150 units in stock. CD74HC175M96 offers 1,092 units in Tape & Reel format.

Avoid:

CD74HC175M (Harris Corporation) is obsolete and RoHS non-compliant. SN74HC175D and SN74HC175DT (Texas Instruments) are discontinued at DiGi Electronics. SN74HC175NSR has a different package width (0.209" vs. 0.154") and requires PCB footprint verification before use.

Frequently Asked Questions (FAQ)

Q: Can MC74HC175ADG be used as a direct replacement for MM74HC175MX?

A: MC74HC175ADG is functionally equivalent but supplied in Tube packaging rather than Tape & Reel. The package dimensions are identical (16-SOIC 0.154" width), making it mechanically compatible. However, Tube packaging requires different handling in automated assembly processes compared to Tape & Reel format.

Q: What is the difference between SN74HC175DR and SN74HC175D?

A: Both parts are from Texas Instruments with identical electrical specifications. SN74HC175DR is actively produced and available in Cut Tape & Digi-Reel packaging with 7,548 units in stock. SN74HC175D is discontinued at DiGi Electronics. For new designs, SN74HC175DR is the appropriate selection.

Q: Why does 74HC175D,653 have a higher clock frequency (89 MHz) than MM74HC175MX (70 MHz)?

A: Clock frequency specifications reflect the maximum rated operating frequency under specified conditions. The 74HC175D,653 from Nexperia USA Inc. has a higher maximum rating, but both parts operate within the same 2V ~ 6V supply voltage range and maintain the same functional characteristics. Selection should be based on application requirements rather than maximum ratings alone.

Q: Is SN74HC175NSR compatible with MM74HC175MX?

A: SN74HC175NSR has identical electrical specifications and is ROHS3 compliant. However, the package width differs (0.209" vs. 0.154"), requiring verification that the PCB footprint accommodates the wider package before substitution.

Q: Can I use CD74HC175M96 in applications requiring the full -40°C ~ 85°C temperature range of MM74HC175MX?

A: Yes. CD74HC175M96 operates across -55°C ~ 125°C, which encompasses the -40°C ~ 85°C range of MM74HC175MX. The extended temperature range provides additional operational margin and is fully compatible with applications designed for the narrower range.

Q: What is the significance of the quiescent current difference between MM74HC175MX (8 µA) and MC74HC175ADG (4 µA)?

A: Lower quiescent current in MC74HC175ADG indicates reduced power consumption during idle states. This difference is relevant for battery-powered or low-power applications but does not affect functional compatibility in standard applications.

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