PIC16LF74-I/PTG Equivalent & Substitute Parts

Part Overview

The PIC16LF74-I/PTG is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, featuring 7KB FLASH program memory, 192 bytes of RAM, and integrated peripherals including I2C, SPI, and UART/USART connectivity. The device operates at 20MHz with a supply voltage range of 2V to 5.5V and is housed in a 44-TQFP surface mount package.

This part is classified as obsolete. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

PIC16LF74-I/PTG

Microchip TechnologyIn Stock: 1107PIC16LF74-I/PTG Datasheet

Current PartRFQ

PIC16LF74-I/PT

Microchip TechnologyIn Stock: 2205PIC16LF74-I/PT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16LF74-I/PTG is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute identified is the PIC16LF74-I/PT, which shares identical core specifications:

Key Parameters for Substitution:

• Core processor architecture (PIC 8-bit)
• Program memory capacity and type (7KB FLASH)
• RAM configuration (192 x 8)
• Operating voltage range (2V ~ 5.5V)
• Clock speed (20MHz)
• I/O count (33 pins)
• Peripheral feature set (I2C, SPI, UART/USART, PWM, WDT, Brown-out Detect/Reset, POR)
• Data converter specifications (A/D 8x8b)
• Package form factor (44-TQFP 10x10)
• Temperature operating range (-40°C ~ 85°C)
• Compliance certifications (ROHS3, REACH Unaffected)

The only difference between the main part and its substitute is the packaging format: the PIC16LF74-I/PTG is supplied in tube packaging, while the PIC16LF74-I/PT is supplied in tray packaging. This distinction affects handling and storage but does not alter electrical or functional characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PIC16LF74-I/PT is a direct functional equivalent to the PIC16LF74-I/PTG. Both parts are manufactured by Microchip Technology and maintain identical electrical specifications, pin configurations, and performance characteristics.

The primary distinction is product status: the PIC16LF74-I/PTG is classified as obsolete, while the PIC16LF74-I/PT maintains active status with Microchip Technology. For new designs or ongoing production requiring this microcontroller architecture, the PIC16LF74-I/PT is the appropriate selection due to its active product status and confirmed availability.

Both parts comply with ROHS3 and REACH requirements, ensuring regulatory compliance for industrial and commercial applications. The MSL rating of 3 (168 Hours) applies to both variants and must be observed during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the PIC16LF74-I/PT be used as a direct replacement for the PIC16LF74-I/PTG?

A: Yes. Both parts are electrically and functionally identical. They share the same core processor, memory configuration, I/O count, peripheral set, voltage specifications, and package form factor. The only difference is packaging format (tube versus tray), which does not affect circuit operation or performance.

Q: What is the difference between tube and tray packaging?

A: Tube packaging (PTG) and tray packaging (PT) are different methods of organizing and shipping components. Tube packaging uses a plastic tube for component storage, while tray packaging uses a plastic tray with compartments. Both formats contain the same microcontroller die and lead frame. The choice between them depends on assembly line equipment compatibility and inventory management practices.

Q: Why is the PIC16LF74-I/PTG classified as obsolete?

A: Microchip Technology has discontinued the tube-packaged variant (PIC16LF74-I/PTG) in favor of the tray-packaged variant (PIC16LF74-I/PT). This is a common industry practice to consolidate packaging formats and streamline manufacturing. The underlying microcontroller remains available in the tray format.

Q: Are there any compatibility concerns when switching from PIC16LF74-I/PTG to PIC16LF74-I/PT?

A: No compatibility concerns exist at the component level. Both parts are pin-for-pin compatible and functionally identical. The only consideration is whether your assembly equipment can accommodate tray-packaged components. If your current process uses tube-fed equipment, you may need to adjust your component handling or feeder system.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PIC16LF74-I/PTG and PIC16LF74-I/PT are ROHS3 compliant and REACH unaffected. They carry identical MSL ratings of 3 (168 Hours) and must be stored and handled according to the same moisture sensitivity guidelines.

Q: What is the inventory status for these parts?

A: The PIC16LF74-I/PTG has 1021 pieces in stock as new original inventory. The PIC16LF74-I/PT has 2100 pieces in stock as new original inventory. The higher availability of the tray-packaged variant reflects its active product status.