CD74ACT163M96E4 Equivalent & Substitute Parts

Part Overview

The CD74ACT163M96E4 is a 4-bit binary counter IC manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This component functions as a synchronous, positive-edge-triggered counter with a maximum count rate of 80 MHz and operates across a supply voltage range of 4.5 V to 5.5 V. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The device is RoHS3 compliant with MSL Level 1 rating, indicating broad compatibility with modern manufacturing processes.

Key Parameters

Parameter	Value
Logic Type	Binary Counter
Number of Bits per Element	4
Direction	Up
Reset Type	Synchronous
Timing	Synchronous
Trigger Type	Positive Edge
Count Rate	80 MHz
Voltage - Supply	4.5 V ~ 5.5 V
Operating Temperature	-55°C ~ 125°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CD74ACT163M96E4 is determined by strict alignment with the following critical parameters: logic type (binary counter), bit width (4-bit), counting direction (up), reset mechanism (synchronous), trigger type (positive edge), package form factor (16-SOIC), and supply voltage compatibility (4.5 V ~ 5.5 V). All identified substitutes maintain these core electrical and mechanical specifications, ensuring functional interchangeability within the same circuit topology. Packaging format (Tape & Reel versus individual units) does not affect electrical performance and represents a supply chain variation only.

Parameter Comparison

Parameter	CD74ACT163M96E4 (Main)	CD74ACT163M96 (Equivalent)	MC74ACT163DR2G (Substitute)
Manufacturer	Texas Instruments	Texas Instruments	onsemi
Logic Type	Binary Counter	Binary Counter	Binary Counter
Number of Bits	4	4	4
Direction	Up	Up	Up
Reset	Synchronous	Synchronous	Synchronous
Trigger Type	Positive Edge	Positive Edge	Positive Edge
Count Rate	80 MHz	80 MHz	140 MHz
Voltage - Supply	4.5 V ~ 5.5 V	4.5 V ~ 5.5 V	4.5 V ~ 5.5 V
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 85°C
Package / Case	16-SOIC	16-SOIC	16-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The CD74ACT163M96 represents a direct parametric equivalent from Texas Instruments with identical electrical specifications and active product status, making it the primary substitute for the discontinued CD74ACT163M96E4. Both parts share the same base product number (74ACT163) and maintain full compatibility across all critical operating parameters.

The MC74ACT163DR2G, manufactured by onsemi, functions as a cross-manufacturer substitute with enhanced performance characteristics. This part exceeds the original count rate specification (140 MHz versus 80 MHz) while maintaining all core functional parameters and package compatibility. The operating temperature range is narrower (-40°C ~ 85°C versus -55°C ~ 125°C), which may require evaluation in applications requiring extended low-temperature operation below -40°C. Both substitute options carry ROHS3 compliance and MSL Level 1 ratings, confirming suitability for modern manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT163M96 be used as a direct replacement for the CD74ACT163M96E4?

A: Yes. Both parts share identical electrical specifications, including count rate (80 MHz), supply voltage (4.5 V ~ 5.5 V), operating temperature range (-55°C ~ 125°C), and 16-SOIC package form factor. The primary difference is product status: the CD74ACT163M96 is active, while the CD74ACT163M96E4 is discontinued.

Q: What are the differences between the CD74ACT163M96 and MC74ACT163DR2G?

A: Both are functionally equivalent 4-bit binary counters in 16-SOIC packages. The MC74ACT163DR2G offers a higher count rate (140 MHz versus 80 MHz) and is manufactured by onsemi rather than Texas Instruments. The MC74ACT163DR2G has a narrower operating temperature range (-40°C ~ 85°C versus -55°C ~ 125°C). For applications operating below -40°C, the CD74ACT163M96 is required.

Q: Does packaging format (Tape & Reel versus individual units) affect electrical performance?

A: No. Packaging format represents a supply chain and handling consideration only. Tape & Reel packaging is standard for high-volume production environments and does not alter the electrical or mechanical characteristics of the component.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The CD74ACT163M96 and MC74ACT163DR2G are both ROHS3 compliant with MSL Level 1 ratings, confirming compatibility with modern manufacturing processes and environmental regulations.

Q: Which substitute should be selected for new designs?

A: Selection depends on application requirements. For designs requiring the full temperature range (-55°C ~ 125°C), use the CD74ACT163M96. For applications within -40°C ~ 85°C with potential benefit from higher count rate performance, the MC74ACT163DR2G is acceptable. Both parts are active and widely available.

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