PIC16LF876AT-I/SO Equivalent & Substitute Parts

Part Overview

The PIC16LF876AT-I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring low-power operation and integrated communication interfaces. This device features 14KB of FLASH program memory, 256 x 8 bytes of EEPROM, and 368 x 8 bytes of RAM, with support for I2C, SPI, and UART/USART connectivity. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical and mechanical parameters align within acceptable tolerances for the application requirements.

Key Parameters

Parameter	Value
Core Processor	PIC
Core Size	8-Bit
Program Memory Size	14KB (8K x 14)
Program Memory Type	FLASH
EEPROM Size	256 x 8
RAM Size	368 x 8
Voltage Supply (Vcc/Vdd)	2V ~ 5.5V
Mounting Type	Surface Mount
Package / Case	28-SOIC (0.295", 7.50mm Width)
Operating Temperature	-40°C ~ 85°C (TA)
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the PIC16LF876AT-I/SO are classified based on strict alignment of core electrical and mechanical parameters:

Direct Substitutes maintain identical or functionally equivalent specifications across all critical parameters: core processor architecture (PIC), core size (8-Bit), program memory capacity (14KB FLASH), EEPROM size (256 x 8), RAM size (368 x 8), supply voltage range (2V ~ 5.5V), package type (28-SOIC), and operating temperature range (-40°C ~ 85°C). These parts are interchangeable without design modification.

Manufacturer-Recommended Substitutes share the same core processor, memory architecture, and package but may include enhanced specifications such as increased processing speed or expanded I/O count. These parts are suitable for applications where the enhanced capabilities do not conflict with existing design constraints.

The following parameters determine substitution eligibility:

Core Processor: PIC
Core Size: 8-Bit
Program Memory Type: FLASH
Package Type: 28-SOIC
Supply Voltage Range: 2V ~ 5.5V minimum compatibility
Operating Temperature: -40°C ~ 85°C minimum compatibility

Parameter Comparison

Parameter	PIC16LF876AT-I/SO (Main)	PIC16LF876A-I/SO (Direct)	PIC16F886-I/SO (MFR Recommended)
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology
Core Processor	PIC	PIC	PIC
Core Size	8-Bit	8-Bit	8-Bit
Speed	10MHz	10MHz	20MHz
Program Memory Size	14KB (8K x 14)	14KB (8K x 14)	14KB (8K x 14)
Program Memory Type	FLASH	FLASH	FLASH
EEPROM Size	256 x 8	256 x 8	256 x 8
RAM Size	368 x 8	368 x 8	368 x 8
Number of I/O	22	22	24
Data Converters	A/D 5x10b	A/D 5x10b	A/D 11x10b
Voltage Supply (Vcc/Vdd)	2V ~ 5.5V	2V ~ 5.5V	2V ~ 5.5V
Connectivity	I2C, SPI, UART/USART	I2C, SPI, UART/USART	I2C, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Oscillator Type	External	External	Internal
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

PIC16LF876A-I/SO is a direct substitute for the PIC16LF876AT-I/SO. Both parts share identical electrical specifications, memory configuration, and package format. This part is suitable for direct replacement in existing designs without circuit modification. The part maintains active product status and ROHS3 compliance.

PIC16F886-I/SO is a manufacturer-recommended substitute offering enhanced performance characteristics. This part operates at 20MHz (double the speed of the main part), includes 24 I/O pins (versus 22), and features 11 analog-to-digital converter channels (versus 5). The PIC16F886-I/SO incorporates an internal oscillator, eliminating the requirement for external oscillator components. This part is suitable for applications where increased processing speed and expanded I/O capability are beneficial. The part maintains active product status and ROHS3 compliance. Design review is required to confirm compatibility with timing-sensitive operations and I/O pin assignments.

Frequently Asked Questions (FAQ)

Q: Can PIC16LF876A-I/SO be used as a direct replacement for PIC16LF876AT-I/SO?

A: Yes. The PIC16LF876A-I/SO is a direct substitute with identical core specifications, memory configuration, I/O count, and package format. No design changes are required.

Q: What are the key differences between PIC16LF876AT-I/SO and PIC16F886-I/SO?

A: The PIC16F886-I/SO operates at 20MHz compared to 10MHz, provides 24 I/O pins versus 22, includes 11 analog-to-digital converter channels versus 5, and features an internal oscillator instead of requiring an external oscillator. All three parts share the same 28-SOIC package and 14KB FLASH memory capacity.

Q: Is the PIC16F886-I/SO compatible with existing PCB layouts designed for PIC16LF876AT-I/SO?

A: The PIC16F886-I/SO uses the same 28-SOIC package and pin count is compatible with the footprint. However, the additional I/O pins (24 versus 22) and internal oscillator configuration require design review to confirm pin assignment compatibility and oscillator circuit modifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. PIC16LF876A-I/SO and PIC16F886-I/SO are both ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the main part.

Q: What is the supply voltage compatibility across all three parts?

A: All three parts operate within the 2V ~ 5.5V supply voltage range, ensuring compatibility with standard embedded system power supplies.

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