PIC16LC711-04I/P Equivalent & Substitute Parts

Part Overview

The PIC16LC711-04I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 1.75KB OTP program memory, 68 bytes of RAM, and 13 I/O pins. This device operates at 4MHz with a supply voltage range of 2.5V to 6V and includes integrated peripherals such as brown-out detection/reset, PWM, and watchdog timer functionality. The part is currently active in production with verified programmability status and ROHS3 compliance. Equivalent and substitute parts are identified for applications requiring alternative memory configurations, speed ratings, or memory technology options while maintaining pin-compatible 18-DIP packaging and core functionality.

Substiute Parts

PIC16LC711-04I/P

Microchip TechnologyIn Stock: 1067PIC16LC711-04I/P Datasheet

Current PartRFQ

PIC16F716-I/P

Microchip TechnologyIn Stock: 3234PIC16F716-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16LC711-04I/P is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 18-DIP (0.300", 7.62mm) through-hole packaging to ensure mechanical and electrical pin alignment.
• Core Architecture: All parts must be based on the PIC 8-bit core processor to maintain instruction set compatibility.
• I/O Pin Count: Substitute parts must provide 13 I/O pins to support existing circuit designs without modification.
• Peripheral Set: Brown-out detection/reset, PWM, and watchdog timer functionality must be present.
• Data Converter: A/D converter with 4-channel 8-bit capability is required.
• Operating Temperature Range: -40°C to 85°C operating range must be maintained.
• Compliance: ROHS3 compliance and EAR99 ECCN classification must be preserved.

The PIC16F716-I/P qualifies as a direct substitute based on these parameters, with enhancements in program memory capacity (4.6KB FLASH vs. 1.75KB OTP), processing speed (20MHz vs. 4MHz), and RAM size (128 bytes vs. 68 bytes).

Parameter Comparison

Engineering Selection Recommendations

The PIC16F716-I/P is a qualified substitute for the PIC16LC711-04I/P based on the following engineering criteria:

• Product Status: Both parts maintain active production status with verified programmability.
• Regulatory Compliance: Both parts are ROHS3 compliant and classified under EAR99 ECCN, meeting equivalent regulatory requirements.
• Pin Compatibility: Identical 18-DIP package and pin count (13 I/O) ensure direct mechanical and electrical compatibility without PCB redesign.
• Core Architecture: Both utilize the PIC 8-bit instruction set, ensuring firmware compatibility with minimal or no code modification.
• Peripheral Compatibility: Both include brown-out detection/reset, PWM, and watchdog timer functionality. The PIC16F716-I/P adds power-on reset (POR) capability.
• Memory Technology Advantage: The PIC16F716-I/P uses FLASH memory instead of OTP, allowing in-circuit reprogramming and field updates without component replacement.
• Performance Enhancement: The 20MHz speed rating of the PIC16F716-I/P provides 5x faster execution compared to the 4MHz PIC16LC711-04I/P, with increased RAM capacity (128 bytes vs. 68 bytes) for larger data structures.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F716-I/P be used as a direct replacement for the PIC16LC711-04I/P?

A: Yes. Both parts share identical 18-DIP packaging, 13 I/O pins, 8-bit core architecture, and equivalent peripheral sets. The PIC16F716-I/P is pin-compatible and firmware-compatible for most applications. Verify that your application does not depend on the lower supply voltage floor of the PIC16LC711-04I/P (2.5V minimum vs. 2V minimum for the PIC16F716-I/P).

Q: What are the key differences between these parts?

A: The primary differences are program memory technology (OTP vs. FLASH), capacity (1.75KB vs. 4.6KB), speed (4MHz vs. 20MHz), and RAM size (68 bytes vs. 128 bytes). The PIC16F716-I/P offers reprogrammability, higher performance, and greater memory resources.

Q: Are there supply voltage compatibility concerns?

A: The PIC16LC711-04I/P operates from 2.5V to 6V, while the PIC16F716-I/P operates from 2V to 5.5V. Applications requiring operation below 2V or above 5.5V must use the PIC16LC711-04I/P. For standard 3.3V or 5V systems, both parts are compatible.

Q: Does the higher speed of the PIC16F716-I/P affect power consumption?

A: Speed capability does not mandate higher power consumption. Actual power consumption depends on clock frequency selection and application workload. The PIC16F716-I/P can be clocked at lower frequencies to match the 4MHz performance of the PIC16LC711-04I/P if power constraints require it.

Q: Is firmware modification required when switching from PIC16LC711-04I/P to PIC16F716-I/P?

A: No firmware modification is required for basic functionality. Both parts execute the same PIC 8-bit instruction set. However, applications utilizing the additional 4.6KB program memory or 128 bytes of RAM can be optimized to leverage these resources.

Q: What is the advantage of FLASH memory over OTP?

A: FLASH memory allows in-circuit reprogramming without component removal or replacement. OTP memory is programmed once during manufacturing. For development, prototyping, and field updates, FLASH memory provides significant advantages in flexibility and cost reduction.

Q: Are both parts available in the same packaging options?

A: Both parts are supplied in 18-PDIP tube packaging. Mechanical and electrical pin assignments are identical, ensuring direct PCB compatibility.