74HCT11D,652 Equivalent & Substitute Parts

Part Overview

The 74HCT11D,652 is a 3-channel AND gate logic IC manufactured by Nexperia USA Inc. in a 14-SO surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74HCT11 series provides standard TTL-compatible AND gate functionality suitable for digital logic applications requiring multiple independent gate channels.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	3
Number of Inputs	3
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	4mA, 4mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Operating Temperature	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 74HCT11D,652 is determined by the following critical parameters:

Logic Function: All substitute parts must implement 3-channel, 3-input AND gate logic
Electrical Characteristics: Supply voltage range (4.5V ~ 5.5V), quiescent current (2 µA max), output current (4mA), and input logic levels must be identical
Package Compatibility: All substitutes must use 14-SOIC surface mount packaging with identical pin configuration
Base Product Series: All parts must belong to the 74HCT11 base product family

The three substitute parts listed (CD74HCT11M, CD74HCT11M96, CD74HCT11MT) meet these core substitution criteria. Variations in product status, manufacturer, and operating temperature range do not affect functional interchangeability within the specified electrical parameters.

Parameter Comparison

Parameter	74HCT11D,652 (Nexperia)	CD74HCT11M (Harris)	CD74HCT11M96 (TI)	CD74HCT11MT (TI)
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	3	3	3	3
Number of Inputs	3	3	3	3
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA	2 µA	2 µA	2 µA
Current - Output High, Low	4mA, 4mA	4mA, 4mA	4mA, 4mA	4mA, 4mA
Input Logic Level - Low	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V	2V
Max Propagation Delay @ 4.5V, 50pF	24ns	28ns	28ns	28ns
Operating Temperature	-40°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Obsolete	Active	Discontinued at DiGi Electronics
RoHS Status	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

CD74HCT11M96 (Texas Instruments) is the preferred substitute for new designs and ongoing procurement. This part maintains active product status, ROHS3 compliance, and extended operating temperature range (-55°C ~ 125°C). All electrical parameters are equivalent to the original 74HCT11D,652, with propagation delay specifications within acceptable tolerance (28ns vs. 24ns).

CD74HCT11MT (Texas Instruments) is functionally equivalent and ROHS3 compliant but is discontinued at DiGi Electronics, limiting long-term availability for production quantities.

CD74HCT11M (Harris Corporation) meets all electrical substitution criteria but does not comply with ROHS3 standards. This part is suitable only for applications where RoHS compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74HCT11D,652 with CD74HCT11M96 on my PCB?

A: Yes. Both parts use identical 14-SOIC packaging with the same pin configuration. All electrical parameters, including supply voltage, logic levels, and output current, are equivalent. No circuit modifications are required.

Q: What is the difference in propagation delay between the original part and substitutes?

A: The 74HCT11D,652 specifies 24ns maximum propagation delay at 4.5V with 50pF load. The substitute parts (CD74HCT11M, CD74HCT11M96, CD74HCT11MT) specify 28ns under identical conditions. This 4ns difference is within typical design margins for TTL-compatible logic applications.

Q: Are there RoHS compliance differences between substitutes?

A: Yes. CD74HCT11M96 and CD74HCT11MT are ROHS3 compliant. CD74HCT11M is RoHS non-compliant. Select based on your application's regulatory requirements.

Q: Which substitute has the best long-term availability?

A: CD74HCT11M96 (Texas Instruments) maintains active product status, providing the most reliable long-term availability for production and future procurement.

Q: Do all substitutes support the same operating temperature range?

A: No. The original 74HCT11D,652 operates from -40°C to 125°C. All three substitutes extend the lower temperature limit to -55°C, providing a wider operating range suitable for industrial and military applications.

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