PIC16LF873AT-I/SO Equivalent & Substitute Parts

Part Overview

The PIC16LF873AT-I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring low-power operation and moderate processing capability. This device features 7KB of FLASH program memory, 192 bytes of RAM, and 128 bytes of EEPROM, with integrated communication interfaces including I2C, SPI, and UART/USART. The part is currently in active production status with 683 units available in stock. Equivalent and substitute parts are identified when design requirements allow for variations in speed, memory capacity, or I/O count while maintaining core functional compatibility within the 28-SOIC package form factor.

Substiute Parts

PIC16LF873AT-I/SO

Microchip TechnologyIn Stock: 713PIC16LF873AT-I/SO Datasheet

Current PartRFQ

PIC16LF873A-I/SO

Microchip TechnologyIn Stock: 2172PIC16LF873A-I/SO Datasheet

DirectRFQ

PIC16F883-I/SO

Microchip TechnologyIn Stock: 1421PIC16F883-I/SO Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16LF873AT-I/SO is determined by the following critical parameters: 28-SOIC package compatibility, 8-bit core processor architecture, FLASH program memory type, surface mount mounting type, and operating voltage range of 2V to 5.5V. Acceptable variations include differences in maximum clock speed, total I/O count, RAM capacity, EEPROM size, and analog-to-digital converter channel count, provided the substitute part maintains the same package footprint and core electrical characteristics.

The PIC16LF873A-I/SO qualifies as a direct equivalent, sharing identical specifications across all critical parameters. The PIC16F883-I/SO qualifies as a manufacturer-recommended substitute despite variations in speed (20MHz vs. 10MHz), I/O count (24 vs. 22), RAM (256 x 8 vs. 192 x 8), EEPROM (256 x 8 vs. 128 x 8), and analog converter channels (11x10b vs. 5x10b), as these represent functional enhancements within the same package and voltage specification.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status with ROHS3 compliance and REACH unaffected classification, ensuring regulatory alignment for current design implementations. The PIC16LF873A-I/SO provides direct functional equivalence to the PIC16LF873AT-I/SO with identical electrical and memory specifications, differing only in packaging format (Tube vs. Tape & Reel). The PIC16F883-I/SO represents a manufacturer-recommended upgrade path, offering enhanced processing speed, expanded memory resources, and increased I/O capability within the same 28-SOIC package envelope and voltage specification. Selection between these parts depends on application-specific requirements for processing speed, memory capacity, and I/O count, with all three maintaining compatibility with the 28-SOIC form factor and 2V to 5.5V supply voltage range.

Frequently Asked Questions (FAQ)

Q: Can the PIC16LF873A-I/SO be used as a direct replacement for the PIC16LF873AT-I/SO?

A: Yes. The PIC16LF873A-I/SO is electrically and functionally identical to the PIC16LF873AT-I/SO. The only difference is packaging format: the original uses Tape & Reel (TR) while the substitute uses Tube packaging. Both are 28-SOIC surface mount devices with identical pin configurations, electrical specifications, and memory organization.

Q: What are the key differences between the PIC16LF873AT-I/SO and the PIC16F883-I/SO?

A: The PIC16F883-I/SO operates at twice the clock speed (20MHz vs. 10MHz), provides additional I/O pins (24 vs. 22), and includes expanded memory: 256 x 8 RAM (vs. 192 x 8) and 256 x 8 EEPROM (vs. 128 x 8). The PIC16F883-I/SO also features 11 analog-to-digital converter channels compared to 5 channels in the original part. Both maintain the same 28-SOIC package and 2V to 5.5V supply voltage range.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the 28-SOIC (0.295", 7.50mm Width) package with identical pin spacing and layout. They are mechanically and electrically interchangeable at the PCB level without requiring layout modifications.

Q: What compliance certifications apply to these substitute parts?

A: All three parts are ROHS3 compliant and REACH unaffected. They share identical environmental and regulatory compliance status, suitable for applications requiring these certifications.

Q: Can the PIC16F883-I/SO be used in applications designed for the PIC16LF873AT-I/SO?

A: The PIC16F883-I/SO can be used as a substitute provided the application firmware is compatible with the enhanced specifications. The higher clock speed, additional I/O, and expanded memory represent functional improvements. However, applications with strict timing or power consumption requirements should evaluate the impact of the 20MHz operating speed versus the original 10MHz specification.