74HC175D-Q100J Equivalent & Substitute Parts

Part Overview

The 74HC175D-Q100J is a D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., designed for 4-bit positive edge-triggered applications. This component operates across a 2V to 6V supply range with complementary outputs and is qualified to AEC-Q100 automotive standards. The part is currently active in production with high inventory availability (688 pcs). Equivalent and substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and specific application requirements such as extended temperature ranges or different packaging formats.

Key Parameters

Parameter	Value
Base Product Number	74HC175
Type	D-Type Flip Flop
Number of Elements	1
Number of Bits per Element	4
Output Type	Complementary
Trigger Type	Positive Edge
Voltage Supply Range	2V ~ 6V
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C (TA)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC175D-Q100J is determined by the following critical parameters:

Functional Equivalence: All substitute parts must maintain the same base product number (74HC175), D-type flip-flop architecture, 4-bit configuration, complementary output type, and positive edge trigger characteristic.

Electrical Compatibility: Supply voltage range (2V ~ 6V), output current specifications (5.2mA high and low), and quiescent current must remain within acceptable operational limits.

Package Compatibility: All parts must use the 16-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility.

Environmental & Compliance: Parts must meet or exceed the RoHS3 compliance requirement and maintain MSL 1 rating for unlimited moisture sensitivity.

Substitute parts are categorized as either parametric equivalents (identical specifications) or similar alternatives (minor variations in clock frequency, propagation delay, or temperature range that do not affect core functionality).

Parameter Comparison

Part Number	Manufacturer	Clock Frequency (MHz)	Max Propagation Delay @ 6V, 50pF (ns)	Current - Quiescent (µA)	Input Capacitance (pF)	Operating Temperature (°C)	Product Status	Packaging	RoHS Status
74HC175D-Q100J	Nexperia USA Inc.	89	30	8	4.6	-40 ~ 125	Active	Tape & Reel (TR)	ROHS3 Compliant
74HC175D,653	Nexperia USA Inc.	89	30	8	4.6	-40 ~ 125	Active	Tape & Reel (TR)	ROHS3 Compliant
CD74HC175M96	Texas Instruments	35	30	8	10	-55 ~ 125	Active	Tape & Reel (TR)	ROHS3 Compliant
MC74HC175ADG	onsemi	35	22	4	10	-55 ~ 125	Active	Tube	ROHS3 Compliant
MC74HC175ADR2G	onsemi	35	22	4	10	-55 ~ 125	Active	Tape & Reel (TR)	ROHS3 Compliant
SN74HC175DR	Texas Instruments	60	26	8	3	-40 ~ 85	Active	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant
CD74HC175M	Harris Corporation	35	30	8	10	-55 ~ 125	Obsolete	Tube	RoHS non-compliant
SN74HC175D	Texas Instruments	60	26	8	3	-40 ~ 85	Discontinued at DiGi Electronics	-	ROHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): The 74HC175D,653 from Nexperia USA Inc. is a parametric equivalent with identical electrical specifications, clock frequency, propagation delay, and quiescent current. This part maintains the same active product status and ROHS3 compliance, making it suitable for direct substitution without design modification.

Active Alternatives with Extended Temperature Range: CD74HC175M96 (Texas Instruments) and MC74HC175ADR2G (onsemi) both support extended operating temperature range (-55°C ~ 125°C) compared to the main part (-40°C ~ 125°C). These parts are active in production and ROHS3 compliant. MC74HC175ADR2G offers improved propagation delay (22ns vs. 30ns) and lower quiescent current (4µA vs. 8µA), with tape & reel packaging matching the main part format.

Active Alternatives with Standard Temperature Range: SN74HC175DR (Texas Instruments) operates within -40°C ~ 85°C and is available in cut tape & Digi-Reel packaging. This part is active and ROHS3 compliant but has a narrower upper temperature limit (85°C vs. 125°C).

Parts to Avoid: CD74HC175M (Harris Corporation) is obsolete and RoHS non-compliant, making it unsuitable for new designs. SN74HC175D is discontinued at DiGi Electronics and should not be selected for ongoing production.

Frequently Asked Questions (FAQ)

Q: Can I use 74HC175D,653 as a direct replacement for 74HC175D-Q100J? A: Yes. The 74HC175D,653 is a parametric equivalent with identical electrical specifications, clock frequency (89 MHz), propagation delay (30ns @ 6V, 50pF), quiescent current (8µA), and operating temperature range (-40°C ~ 125°C). Both parts are active, ROHS3 compliant, and use the same 16-SOIC package.

Q: What is the difference between the onsemi MC74HC175ADR2G and the main part? A: The MC74HC175ADR2G offers improved performance with faster propagation delay (22ns vs. 30ns) and lower quiescent current (4µA vs. 8µA). It supports an extended temperature range (-55°C ~ 125°C) and is available in tape & reel packaging. The trade-off is higher input capacitance (10pF vs. 4.6pF) and lower clock frequency (35 MHz vs. 89 MHz).

Q: Why is CD74HC175M not recommended? A: CD74HC175M is obsolete and RoHS non-compliant. New designs should not incorporate obsolete or non-compliant components due to supply chain risk and regulatory requirements.

Q: Does packaging format affect electrical performance? A: No. Tape & reel, tube, and cut tape packaging formats do not affect electrical performance. Selection should be based on assembly process requirements and inventory management practices.

Q: Can I use SN74HC175D for applications requiring -55°C operation? A: No. SN74HC175D operates only to -40°C minimum and is discontinued at DiGi Electronics. For extended low-temperature operation, use CD74HC175M96 or MC74HC175ADR2G, both rated to -55°C.

Q: Are all substitute parts ROHS3 compliant? A: No. CD74HC175M is RoHS non-compliant. All other active alternatives (74HC175D,653, CD74HC175M96, MC74HC175ADG, MC74HC175ADR2G, and SN74HC175DR) are ROHS3 compliant.

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