PIC24F16KA302-E/ML Equivalent & Substitute Parts

Part Overview

The PIC24F16KA302-E/ML is a 16-bit microcontroller from Microchip Technology's PIC® XLP™ 24F series, featuring 16KB of Flash program memory and operating at 32MHz. This device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support, production continuity, and system maintenance. Substitute parts must maintain electrical compatibility across core processor architecture, memory configuration, peripheral set, and package specifications to ensure direct replacement capability.

Substiute Parts

PIC24F16KA302-E/ML

Microchip TechnologyIn Stock: 1215PIC24F16KA302-E/ML Datasheet

Current PartRFQ

PIC24F16KA302-I/ML

Microchip TechnologyIn Stock: 1058PIC24F16KA302-I/ML Datasheet

MFR RecommendedRFQ

PIC24F32KA302-E/ML

Microchip TechnologyIn Stock: 1000495PIC24F32KA302-E/ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC24F16KA302-E/ML is determined by strict alignment across the following critical parameters:

Core Architecture Requirements:

• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 24F
• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 32MHz
• Package / Case: 28-VQFN Exposed Pad
• Supplier Device Package: 28-QFN (6x6)

Memory and Peripheral Compatibility:

• EEPROM Size: 512 x 8
• RAM Size: 2K x 8
• Number of I/O: 24
• Connectivity: I2C, IrDA, LINbus, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Data Converters: A/D 13x12b
• Oscillator Type: Internal

Electrical Specifications:

• Voltage Supply (Vcc/Vdd): 1.8V ~ 3.6V
• Mounting Type: Surface Mount

Compliance and Environmental:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Identified substitutes are grouped based on program memory capacity variations and product status classifications. The PIC24F16KA302-I/ML represents a direct functional equivalent with identical electrical and mechanical specifications but differs in product status and moisture sensitivity rating. The PIC24F32KA302-E/ML provides expanded program memory capacity while maintaining all other core parameters, enabling use in applications requiring additional code storage within the same physical footprint and electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

PIC24F16KA302-I/ML Selection Criteria:

The PIC24F16KA302-I/ML is classified as an active product and represents a direct functional equivalent to the obsolete PIC24F16KA302-E/ML. Both devices maintain identical electrical specifications, memory configuration, peripheral set, and physical packaging. The primary distinction is product lifecycle status: the -I/ML variant is currently in active production, ensuring long-term availability and supply chain continuity. This substitute is appropriate for new designs, production restocking, and field replacements where the original part is no longer available.

Consideration must be given to the moisture sensitivity level difference: the main part carries MSL 1 (unlimited shelf life), while the -I/ML variant carries MSL 3 (168-hour floor life limit). This affects storage and handling protocols but does not impact electrical or functional compatibility.

The operating temperature range for the -I/ML is -40°C to 85°C, compared to -40°C to 125°C for the main part. Applications requiring operation above 85°C must use the PIC24F32KA302-E/ML or retain the original part if available.

PIC24F32KA302-E/ML Selection Criteria:

The PIC24F32KA302-E/ML is an active product offering doubled program memory capacity (32KB versus 16KB) while maintaining all other electrical, peripheral, and packaging specifications. This substitute is suitable for applications where the original 16KB program memory is insufficient or where future firmware expansion is anticipated. The device operates within the full temperature range (-40°C to 125°C) matching the main part's thermal envelope.

The PIC24F32KA302-E/ML is appropriate for direct replacement in existing designs if firmware can be accommodated within the expanded memory space, or for new designs requiring additional code storage without changing the physical footprint or electrical interface.

Frequently Asked Questions (FAQ)

Q: Can the PIC24F16KA302-I/ML be used as a direct replacement for the PIC24F16KA302-E/ML in existing designs?

A: Yes, the PIC24F16KA302-I/ML is electrically and functionally equivalent to the PIC24F16KA302-E/ML. Both devices share identical core processor architecture, memory configuration, peripheral set, I/O count, voltage specifications, and physical packaging. The primary difference is product status (active versus obsolete) and moisture sensitivity rating. Applications operating within the -40°C to 85°C temperature range can use this substitute without design modification.

Q: What is the impact of the different operating temperature ranges?

A: The PIC24F16KA302-E/ML operates from -40°C to 125°C, while the PIC24F16KA302-I/ML operates from -40°C to 85°C. If your application requires operation above 85°C, the -I/ML variant is not suitable. In such cases, use the PIC24F32KA302-E/ML, which maintains the full -40°C to 125°C range.

Q: How does the moisture sensitivity level (MSL) difference affect component handling?

A: The PIC24F16KA302-E/ML carries MSL 1, indicating unlimited shelf life without moisture absorption concerns. The PIC24F16KA302-I/ML carries MSL 3, requiring storage in controlled humidity environments and limiting floor life to 168 hours after bag opening. This affects receiving inspection, storage protocols, and production scheduling but does not impact electrical performance or functionality.

Q: Can the PIC24F32KA302-E/ML replace the PIC24F16KA302-E/ML?

A: The PIC24F32KA302-E/ML can replace the PIC24F16KA302-E/ML from an electrical and packaging perspective. The primary difference is program memory capacity: 32KB versus 16KB. This substitute is suitable if your firmware fits within the expanded memory or if additional code storage is beneficial. No design changes are required for pin compatibility or electrical interface. Verify that your development tools and firmware support the PIC24F32KA302 variant.

Q: Are all three parts RoHS and REACH compliant?

A: Yes, all three parts—PIC24F16KA302-E/ML, PIC24F16KA302-I/ML, and PIC24F32KA302-E/ML—are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference between the -E/ML and -I/ML suffixes?

A: The suffix designates the temperature and packaging grade. The -E/ML variant is rated for the extended temperature range (-40°C to 125°C), while the -I/ML variant is rated for the industrial temperature range (-40°C to 85°C). Both use the same 28-QFN (6x6) package. Select based on your application's thermal requirements.