74HC32N,652 OR Gate IC - Equivalent & Substitute Parts

Part Overview

The 74HC32N,652 is a 4-channel 2-input OR Gate logic IC manufactured by NXP USA Inc. in a 14-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74HC series represents a standard logic family with consistent electrical characteristics across multiple manufacturers and package options.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns
Operating Temperature	-40°C ~ 125°C
Mounting Type	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 74HC32N,652 are qualified based on the following criteria:

Electrical Compatibility Parameters:

Logic type: OR Gate
Circuit count: 4 channels
Input count: 2 per channel
Supply voltage range: 2V ~ 6V
Output current capability: 5.2mA minimum
Propagation delay: 15ns or better at 6V, 50pF load
Input logic levels: 0.5V ~ 1.8V (low), 1.5V ~ 4.2V (high)

Mechanical Compatibility Parameters:

Base product number: 74HC32
Package type: 14-DIP or equivalent footprint
Mounting method: Through Hole or Surface Mount (with package conversion consideration)

Regulatory & Compliance:

RoHS3 compliance required
REACH unaffected status

Substitutes are grouped by package type: through-hole DIP packages maintain direct pin compatibility, while surface-mount variants require board-level design modifications.

Parameter Comparison

Parameter	74HC32N,652 (NXP)	CD74HC32E (TI)	74HC32D,653 (Nexperia)	SN74HC32N (TI)
Manufacturer	NXP USA Inc.	Texas Instruments	Nexperia USA Inc.	Texas Instruments
Product Status	Obsolete	Active	Active	Active
Logic Type	OR Gate	OR Gate	OR Gate	OR Gate
Number of Circuits	4	4	4	4
Number of Inputs	2	2	2	2
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA	2 µA	2 µA
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns	15ns	15ns	17ns
Operating Temperature	-40°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Mounting Type	Through Hole	Through Hole	Surface Mount	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-SOIC (0.154", 3.90mm Width)	14-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (Through-Hole DIP):

CD74HC32E (Texas Instruments) and SN74HC32N (Texas Instruments) are direct substitutes for the 74HC32N,652 in through-hole applications. Both maintain identical package geometry (14-DIP), electrical specifications, and RoHS3 compliance. CD74HC32E offers extended operating temperature range (-55°C to 125°C) compared to the original part (-40°C to 125°C). SN74HC32N operates within a narrower temperature range (-40°C to 85°C) and exhibits 17ns propagation delay versus 15ns for the original specification.

For Surface-Mount Applications:

74HC32D,653 (Nexperia USA Inc.) provides equivalent electrical functionality in a 14-SOIC surface-mount package. This part requires PCB redesign for package conversion but maintains all electrical parameters and RoHS3 compliance. Nexperia is the successor entity to NXP's logic IC division, ensuring manufacturing continuity.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original component. Selection should prioritize active product status for long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can SN74HC32N replace 74HC32N,652 in all applications?

A: SN74HC32N is electrically compatible for logic function and package type. However, its operating temperature range is limited to -40°C to 85°C, compared to the original -40°C to 125°C. Applications requiring operation above 85°C require CD74HC32E or 74HC32D,653.

Q: What is the difference between CD74HC32E and SN74HC32N?

A: Both are through-hole 14-DIP packages with identical electrical specifications. CD74HC32E extends the operating temperature range to -55°C to 125°C, while SN74HC32N operates from -40°C to 85°C. Propagation delay is 15ns for both at 6V, 50pF load.

Q: Can 74HC32D,653 be used as a direct replacement?

A: 74HC32D,653 is electrically equivalent but uses a 14-SOIC surface-mount package instead of through-hole DIP. Direct PCB substitution is not possible without redesign. This part is suitable for new surface-mount designs.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts (CD74HC32E, 74HC32D,653, and SN74HC32N) are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original 74HC32N,652.

Q: Which substitute has the best propagation delay performance?

A: CD74HC32E and 74HC32N,652 both specify 15ns maximum propagation delay at 6V, 50pF load. SN74HC32N specifies 17ns under the same conditions, representing a 2ns difference within typical application tolerances.

Q: What is the inventory status of these substitutes?

A: CD74HC32E has 1,158 pieces in stock. 74HC32D,653 has 3,700 pieces in stock. SN74HC32N has 20,400 pieces in stock. The original 74HC32N,652 has 886 pieces available as obsolete stock.

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