74F38PC NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74F38PC is a 4-channel 2-input NAND gate IC with open collector output, manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The 74F38 series provides standard logic gating functionality suitable for digital circuit applications requiring open collector output configuration.

Substiute Parts

74F38PC

onsemiIn Stock: 225174F38PC Datasheet

Current PartRFQ

SN74F38N

Texas InstrumentsIn Stock: 2283SN74F38N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F38PC is determined by strict equivalence across the following critical parameters:

• Logic Function: NAND gate with 4 channels and 2 inputs per channel
• Output Configuration: Open collector topology
• Electrical Performance: Supply voltage range 4.5V ~ 5.5V, output current 64mA, propagation delay 12.5ns @ 5V with 50pF load
• Input Thresholds: Logic low 0.8V, logic high 2V
• Operating Temperature Range: 0°C ~ 70°C
• Package Compatibility: 14-DIP through-hole mounting with 0.300" (7.62mm) pitch

The SN74F38N from Texas Instruments meets all specified electrical and functional parameters, with identical logic performance and package footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SN74F38N is a direct parametric equivalent to the 74F38PC. Selection between these parts should be based on the following factors:

Product Status: The 74F38PC is obsolete, while the SN74F38N maintains active product status from Texas Instruments. For new designs and long-term production continuity, the SN74F38N is the appropriate selection.

Compliance and Certifications: The SN74F38N carries RoHS3 compliance certification, whereas the 74F38PC does not specify RoHS status. Both parts are REACH Unaffected and classified under ECCN EAR99. For applications requiring RoHS compliance, the SN74F38N satisfies regulatory requirements.

Packaging and Availability: Both parts utilize identical 14-DIP through-hole packaging with 0.300" pitch, ensuring direct board-level compatibility without layout modifications. The SN74F38N is supplied in tube packaging format.

Electrical Equivalence: All critical electrical parameters—supply voltage, output current, input thresholds, and propagation delay—are identical between the two parts, confirming functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the SN74F38N replace the 74F38PC in existing designs?

A: Yes. The SN74F38N is a direct parametric equivalent with identical electrical specifications, input/output characteristics, and 14-DIP package footprint. No circuit modifications are required for substitution.

Q: Are there any differences in package dimensions between these parts?

A: No. Both the 74F38PC and SN74F38N use the 14-DIP package with 0.300" (7.62mm) pitch. Pin spacing and board footprint are identical, allowing direct socket compatibility.

Q: What is the significance of the 74F38PC being obsolete?

A: Obsolete status indicates the part is no longer manufactured by onsemi. The SN74F38N from Texas Instruments provides continued availability and supply chain security for applications requiring 4-channel 2-input NAND gate functionality with open collector output.

Q: Do both parts meet the same compliance standards?

A: Both parts are REACH Unaffected and classified as EAR99. The SN74F38N additionally carries RoHS3 compliance certification, making it suitable for applications with RoHS requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching logic type (NAND gate), circuit count (4 channels), input count (2 per channel), output configuration (open collector), supply voltage range (4.5V ~ 5.5V), output current (64mA), input thresholds (0.8V low, 2V high), propagation delay (12.5ns @ 5V, 50pF), operating temperature range (0°C ~ 70°C), and package type (14-DIP through-hole).