PIC16LC71T-04I/SO Equivalent & Substitute Parts

Part Overview

The PIC16LC71T-04I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-power operation. This device features 1.75KB of OTP (One-Time Programmable) memory, 4MHz clock speed, and operates within a 3V to 3.6V supply range. The part is currently active in production with verified programmability through DiGi-Electronics and maintains full RoHS3 compliance.

Identifying equivalent and substitute parts becomes necessary when the original part number is unavailable, when alternative packaging formats are required, or when enhanced performance characteristics are needed for system upgrades while maintaining pin-compatible form factors.

Substiute Parts

PIC16LC71T-04I/SO

Microchip TechnologyIn Stock: 817PIC16LC71T-04I/SO Datasheet

Current PartRFQ

PIC16LC71-04I/SO

Microchip TechnologyIn Stock: 923PIC16LC71-04I/SO Datasheet

DirectRFQ

PIC16F716T-I/SO

Microchip TechnologyIn Stock: 3575PIC16F716T-I/SO Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the PIC16LC71T-04I/SO is based on the following critical parameters that determine functional compatibility:

Direct Substitutes (Identical Electrical & Mechanical Specifications):

• Core processor architecture (PIC)
• 8-bit core size
• 18-SOIC package form factor
• 13 I/O pins
• A/D converter configuration (4x8b)
• Peripheral set (POR, WDT minimum)
• Operating temperature range (-40°C ~ 85°C)
• RoHS3 compliance

Enhanced Substitutes (Pin-Compatible with Improved Specifications):

• Maintain 18-SOIC package and 13 I/O pins
• Maintain PIC core processor family
• Allow increased clock speed, expanded memory, or enhanced voltage range
• Maintain or exceed peripheral functionality
• Maintain RoHS3 compliance

Parameter Comparison

Engineering Selection Recommendations

PIC16LC71-04I/SO (Direct Substitute): This part is electrically and mechanically identical to the PIC16LC71T-04I/SO. The only difference is packaging format (Tube versus the original specification). Both parts maintain identical electrical specifications, memory configuration, and peripheral set. Selection of this part is appropriate when the original part number is unavailable and packaging format flexibility is acceptable. Both parts carry Active product status and full RoHS3 compliance.

PIC16F716T-I/SO (Enhanced Substitute): This part maintains pin compatibility and the 18-SOIC package form factor while offering enhanced specifications. Key differences include increased clock speed (20MHz versus 4MHz), expanded program memory (4.6KB FLASH versus 1.75KB OTP), increased RAM (128 x 8 versus 36 x 8), extended voltage supply range (2V ~ 5.5V versus 3V ~ 3.6V), and additional peripherals (Brown-out Detect/Reset and PWM). The FLASH memory type allows field reprogramming, unlike the OTP memory of the original part. This substitute is suitable for applications requiring higher performance, expanded memory capacity, or broader supply voltage tolerance. Both parts maintain Active product status and RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can PIC16LC71-04I/SO be used as a direct replacement for PIC16LC71T-04I/SO?

A: Yes. Both parts are electrically and mechanically identical with matching core processor, memory configuration, I/O count, and peripheral set. The difference is packaging format (Tube versus the original). Pin configuration and electrical performance are identical.

Q: What are the advantages of using PIC16F716T-I/SO over the original PIC16LC71T-04I/SO?

A: The PIC16F716T-I/SO offers five times the clock speed (20MHz), twice the program memory (4.6KB), significantly more RAM (128 x 8), a wider supply voltage range (2V ~ 5.5V), and additional peripherals including Brown-out Detect/Reset and PWM functionality. The FLASH memory type allows reprogramming without device replacement.

Q: Are there any compatibility concerns when substituting PIC16F716T-I/SO for PIC16LC71T-04I/SO?

A: Both parts share the same 18-SOIC package and 13 I/O pin configuration, ensuring mechanical and electrical pin compatibility. The PIC16F716T-I/SO operates across a broader voltage range (2V ~ 5.5V), making it compatible with systems designed for the 3V ~ 3.6V range of the original part. Firmware may require adjustment to account for the increased clock speed and expanded memory capacity.

Q: What is the difference between OTP and FLASH memory types?

A: OTP (One-Time Programmable) memory in the PIC16LC71T-04I/SO can be programmed once during manufacturing and cannot be altered. FLASH memory in the PIC16F716T-I/SO can be erased and reprogrammed multiple times, allowing field updates and development flexibility.

Q: Do all substitute parts maintain the same operating temperature range?

A: Yes. Both the PIC16LC71-04I/SO and PIC16F716T-I/SO operate across the identical temperature range of -40°C to 85°C (TA), matching the original PIC16LC71T-04I/SO specification.

Q: Are all parts RoHS3 compliant?

A: Yes. The PIC16LC71T-04I/SO, PIC16LC71-04I/SO, and PIC16F716T-I/SO all carry ROHS3 Compliant status, meeting environmental and regulatory requirements.