PIC16LC54C-04I/P Equivalent & Substitute Parts

Part Overview

The PIC16LC54C-04I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 768B of OTP (One-Time Programmable) memory and operating at 4MHz. This device is actively produced and widely used in embedded applications requiring low-cost, reliable microcontroller solutions. Finding equivalent or substitute parts becomes necessary when addressing supply constraints, design revisions, or when alternative memory technologies offer operational advantages for specific applications.

Substiute Parts

PIC16LC54C-04I/P

Microchip TechnologyIn Stock: 1138PIC16LC54C-04I/P Datasheet

Current PartRFQ

PIC16F54-I/P

Microchip TechnologyIn Stock: 8691PIC16F54-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16LC54C-04I/P is determined by strict alignment of the following critical parameters:

• Core Architecture: Both main and substitute parts must be PIC 8-bit microcontrollers
• Memory Capacity: Program memory must be 768B (512 x 12) and RAM must be 25 x 8
• I/O Count: 12 I/O pins required
• Package: 18-DIP form factor with 0.300" (7.62mm) pitch
• Voltage Range: Supply voltage compatibility within specified operating range
• Mounting Type: Through-hole configuration
• Compliance: ROHS3 compliance and EAR99 classification maintained

The PIC16F54-I/P qualifies as a direct substitute based on these parameters. While it operates at a higher speed (20MHz versus 4MHz) and uses FLASH memory instead of OTP, these represent functional enhancements rather than incompatibilities. The lower minimum voltage (2V versus 2.5V) provides expanded operating range capability.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16LC54C-04I/P and PIC16F54-I/P maintain ROHS3 compliance and EAR99 classification, ensuring regulatory alignment for industrial and commercial applications. The PIC16LC54C-04I/P remains the primary choice for applications where OTP memory is specified and 4MHz operation is sufficient. The PIC16F54-I/P serves as a functional substitute when higher processing speed (20MHz) is beneficial or when FLASH memory reprogrammability is advantageous for development and field updates. Both devices are actively produced by Microchip Technology, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can PIC16F54-I/P directly replace PIC16LC54C-04I/P in existing designs?

A: Yes. Both devices share identical pinout (18-DIP), I/O count (12), memory capacity (768B program, 25x8 RAM), and operating temperature range (-40°C to 85°C). The 18-DIP package dimensions (0.300", 7.62mm) are identical, enabling direct socket substitution.

Q: What is the primary difference between these parts?

A: The main differences are program memory type (OTP versus FLASH) and maximum operating speed (4MHz versus 20MHz). The PIC16F54-I/P offers higher speed capability and reprogrammable memory, while the PIC16LC54C-04I/P uses one-time programmable memory at lower speed.

Q: Are there voltage supply differences?

A: The PIC16F54-I/P operates from 2V minimum, while the PIC16LC54C-04I/P requires 2.5V minimum. Both support up to 5.5V, so the PIC16F54-I/P provides expanded low-voltage operation capability.

Q: Do both parts support the same peripherals?

A: Yes. Both include Power-On Reset (POR) and Watchdog Timer (WDT) functionality.

Q: Are both parts RoHS compliant?

A: Yes. Both the PIC16LC54C-04I/P and PIC16F54-I/P are ROHS3 compliant and classified as EAR99 for export purposes.