PIC16LC77T-04I/PQ Equivalent & Substitute Parts

Part Overview

The PIC16LC77T-04I/PQ is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 14KB OTP program memory, 368 x 8 bytes of RAM, and integrated peripherals including PWM, watchdog timer, and brown-out detection. The device operates at 4MHz with a supply voltage range of 2.5V to 6V and is housed in a 44-MQFP surface mount package.

The main part number PIC16LC77T-04I/PQ carries an Obsolete product status. Locating equivalent or substitute components becomes necessary when original inventory is depleted or when design updates require active production status components with identical electrical and mechanical specifications.

Substiute Parts

PIC16LC77T-04I/PQ

Microchip TechnologyIn Stock: 900PIC16LC77T-04I/PQ Datasheet

Current PartRFQ

PIC16LC77-04I/PQ

Microchip TechnologyIn Stock: 946PIC16LC77-04I/PQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16LC77T-04I/PQ is determined by strict equivalence across the following critical parameters:

• Core Processor Architecture: PIC
• Core Size: 8-Bit
• Operating Speed: 4MHz
• Program Memory Configuration: 14KB OTP (8K x 14)
• RAM Capacity: 368 x 8 bytes
• Supply Voltage Range: 2.5V ~ 6V
• I/O Pin Count: 33
• Connectivity Interfaces: I2C, SPI, UART/USART
• Integrated Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Data Converter Specification: A/D 8x8b
• Operating Temperature Range: -40°C ~ 85°C
• Physical Package: 44-QFP / 44-MQFP (10x10)

Only components matching all specified parameters across electrical function, memory configuration, pin assignment, and physical packaging qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The PIC16LC77-04I/PQ qualifies as a direct substitute for the PIC16LC77T-04I/PQ based on complete electrical and mechanical parameter equivalence. The primary distinction is product lifecycle status: the main part carries Obsolete designation while the substitute maintains Active production status.

Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The substitute part maintains identical supply voltage specifications, memory configuration, peripheral integration, and physical packaging, ensuring drop-in compatibility in existing circuit designs.

Selection of the active production variant eliminates supply chain risk associated with obsolete component sourcing while preserving full functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can PIC16LC77-04I/PQ replace PIC16LC77T-04I/PQ in existing designs?

A: Yes. Both components share identical electrical specifications, memory architecture, peripheral configuration, pin assignment, and physical packaging. The substitute part is electrically and mechanically interchangeable.

Q: What is the difference between these part numbers?

A: The primary difference is product status. PIC16LC77T-04I/PQ is Obsolete, while PIC16LC77-04I/PQ maintains Active production status. All functional and physical parameters are equivalent.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance and REACH unaffected status. Moisture sensitivity level and handling requirements are identical at MSL 3 (168 Hours).

Q: Is the 44-MQFP (10x10) package identical between both parts?

A: Yes. Both components use the same 44-QFP / 44-MQFP (10x10) surface mount package with identical pin configuration and mechanical dimensions.

Q: What inventory status should I expect?

A: The main part (PIC16LC77T-04I/PQ) shows 867 pieces in stock as new original. The substitute (PIC16LC77-04I/PQ) shows 913 pieces in stock as new original. Availability may vary by supplier and time of inquiry.