PIC16F77T-I/ML Equivalent & Substitute Parts

Part Overview

The PIC16F77T-I/ML is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, featuring 14KB FLASH program memory, 368 x 8 bytes of RAM, and 33 I/O pins in a 44-QFN surface mount package. The device integrates I2C, SPI, and UART/USART connectivity with peripheral support for PWM, watchdog timer, and brown-out detection. Currently classified as obsolete, identifying equivalent substitute parts is essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

PIC16F77T-I/ML

Microchip TechnologyIn Stock: 1078PIC16F77T-I/ML Datasheet

Current PartRFQ

PIC16F77-I/ML

Microchip TechnologyIn Stock: 815PIC16F77-I/ML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16F77T-I/ML is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Memory Configuration: 14KB FLASH program memory (8K x 14), 368 x 8 RAM
• Clock Speed: 20MHz maximum operating frequency
• I/O Count: 33 I/O pins
• Voltage Range: 4V ~ 5.5V supply compatibility
• Connectivity Interfaces: I2C, SPI, UART/USART support
• Peripheral Set: Brown-out Detect/Reset, POR, PWM, WDT
• Package Format: 44-QFN (8x8) surface mount with exposed pad
• Environmental Compliance: ROHS3 compliance and MSL 1 rating

The PIC16F77-I/ML meets all substitution criteria as a direct equivalent, differing only in product status classification.

Parameter Comparison

Engineering Selection Recommendations

The PIC16F77-I/ML is a direct functional equivalent to the PIC16F77T-I/ML. Both devices share identical electrical specifications, memory architecture, I/O configuration, and package format. The primary distinction is product lifecycle status: the PIC16F77T-I/ML is classified as obsolete, while the PIC16F77-I/ML maintains active status with verified programmability support.

For new designs or system updates, the PIC16F77-I/ML is the appropriate selection due to its active product status and ongoing manufacturer support. Both parts maintain ROHS3 compliance and identical environmental ratings, ensuring regulatory consistency across applications.

Frequently Asked Questions (FAQ)

Q: Can PIC16F77-I/ML be used as a direct replacement for PIC16F77T-I/ML?

A: Yes. Both devices are electrically and mechanically identical across all specified parameters, including memory configuration, I/O count, voltage range, connectivity interfaces, and package format. The substitution is direct with no design modifications required.

Q: What is the difference between PIC16F77T-I/ML and PIC16F77-I/ML?

A: The devices are functionally equivalent. The primary difference is product status: PIC16F77T-I/ML is obsolete, while PIC16F77-I/ML is active. The PIC16F77-I/ML also carries verified programmability certification.

Q: Are there any package or pinout differences?

A: No. Both parts use the 44-VQFN exposed pad package with identical pinout and 33 I/O pins. Surface mount assembly processes and PCB layouts are fully compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PIC16F77T-I/ML and PIC16F77-I/ML are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. REACH and ECCN classifications are identical.

Q: Which part should be selected for new procurement?

A: The PIC16F77-I/ML should be selected for new designs and ongoing procurement due to its active product status and manufacturer support continuity.