PIC16LC71-04/SO Equivalent & Substitute Parts

Part Overview

The PIC16LC71-04/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-voltage operation. This device features 1.75KB of OTP (One-Time Programmable) memory, 13 I/O pins, and integrated analog-to-digital conversion capabilities. The product maintains Active status with verified programmability through DiGi-Electronics. Substitute parts are identified when equivalent functional requirements can be met within the same package footprint while maintaining core processor architecture and I/O configuration.

Substiute Parts

PIC16LC71-04/SO

Microchip TechnologyIn Stock: 1148PIC16LC71-04/SO Datasheet

Current PartRFQ

PIC16F716-I/SO

Microchip TechnologyIn Stock: 21970PIC16F716-I/SO Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PIC16F716-I/SO qualifies as a direct substitute based on the following alignment criteria:

Preserved Parameters:

• Core processor architecture: PIC (maintains instruction set compatibility)
• Core size: 8-Bit (identical processing capability)
• Package footprint: 18-SOIC (0.295", 7.50mm Width) (direct PCB compatibility)
• Number of I/O: 13 (equivalent pin configuration)
• Data converters: A/D 4x8b (identical analog input capability)
• Mounting type: Surface Mount (same assembly process)
• Compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification (regulatory equivalence)

Functional Enhancement: The substitute part offers increased program memory (4.6KB FLASH vs. 1.75KB OTP), expanded RAM (128 x 8 vs. 36 x 8), higher operating speed (20MHz vs. 4MHz), and broader voltage supply range (2V ~ 5.5V vs. 3V ~ 3.6V), making it suitable for applications requiring greater computational capacity or extended environmental operating conditions.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16LC71-04/SO and PIC16F716-I/SO maintain Active product status with verified programmability. Selection between these devices depends on application-specific requirements:

PIC16LC71-04/SO is appropriate for applications with fixed, non-reprogrammable firmware requirements and strict low-voltage operation constraints (3V ~ 3.6V supply range).

PIC16F716-I/SO is appropriate for applications requiring firmware flexibility through FLASH memory reprogrammability, higher processing speed, expanded memory resources, or extended operating temperature range (-40°C ~ 85°C). The broader voltage supply range (2V ~ 5.5V) accommodates diverse power supply architectures.

Both devices maintain identical regulatory compliance (ROHS3, REACH Unaffected, EAR99) and equivalent moisture sensitivity classification (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can PIC16F716-I/SO directly replace PIC16LC71-04/SO in existing designs?

A: Yes, within the constraints of your application. Both devices share identical 18-SOIC package dimensions, 13 I/O pin configuration, and A/D converter specification. PCB layout compatibility is maintained. However, verify that your power supply can accommodate the PIC16F716-I/SO's broader voltage range (2V ~ 5.5V) and that firmware reprogrammability (FLASH vs. OTP) aligns with your production workflow.

Q: What are the key differences in memory architecture?

A: The PIC16LC71-04/SO uses 1.75KB of OTP (One-Time Programmable) memory, suitable for production-locked applications. The PIC16F716-I/SO uses 4.6KB of FLASH memory, allowing in-circuit reprogramming. RAM capacity differs: 36 x 8 bytes versus 128 x 8 bytes, respectively.

Q: Are there operating temperature considerations for substitution?

A: The PIC16LC71-04/SO operates within 0°C ~ 70°C. The PIC16F716-I/SO extends this range to -40°C ~ 85°C. If your application requires operation below 0°C or above 70°C, the PIC16F716-I/SO is the appropriate selection.

Q: Do both devices require identical supply voltage?

A: No. The PIC16LC71-04/SO requires 3V ~ 3.6V supply. The PIC16F716-I/SO accepts 2V ~ 5.5V. Designs using the PIC16LC71-04/SO with 3V ~ 3.6V supplies are compatible with PIC16F716-I/SO. Designs operating at voltages outside the 3V ~ 3.6V range require the PIC16F716-I/SO.

Q: Is firmware compatibility maintained between these devices?

A: Both devices use the PIC instruction set architecture. Code written for the PIC16LC71-04/SO executes on the PIC16F716-I/SO. However, the PIC16F716-I/SO's increased memory capacity (4.6KB vs. 1.75KB) and RAM (128 x 8 vs. 36 x 8) allow for more complex applications. Existing firmware requires no modification for execution on the substitute part.