PIC16C54-LPE/P Equivalent & Substitute Parts

Part Overview

The PIC16C54-LPE/P is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 768B of OTP (One-Time Programmable) memory and 12 I/O pins. This device is classified as Active product status and is RoHS3 compliant. Finding equivalent or substitute parts becomes necessary when OTP memory limitations require reprogrammable alternatives, when supply constraints occur, or when design flexibility for field updates is required.

Substiute Parts

PIC16C54-LPE/P

Microchip TechnologyIn Stock: 1192PIC16C54-LPE/P Datasheet

Current PartRFQ

PIC16F54-E/P

Microchip TechnologyIn Stock: 1600PIC16F54-E/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16C54-LPE/P is determined by strict alignment of the following parameters:

• Core Architecture: PIC 8-bit processor compatibility
• Memory Configuration: 768B (512 x 12) program memory and 25 x 8 RAM
• I/O Count: 12 I/O pins
• Package Format: 18-DIP (0.300", 7.62mm) through-hole mounting
• Peripheral Set: POR (Power-On Reset) and WDT (Watchdog Timer)
• Operating Temperature Range: -40°C ~ 125°C
• Compliance: RoHS3 compliance and REACH unaffected status

The PIC16F54-E/P qualifies as a direct substitute based on these parameters. The primary distinction is the program memory type: the substitute uses FLASH memory instead of OTP, enabling field reprogrammability while maintaining identical memory capacity, I/O configuration, and package specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16C54-LPE/P and PIC16F54-E/P maintain Active product status with full RoHS3 compliance and REACH unaffected classification, ensuring regulatory alignment for current and future applications.

The PIC16F54-E/P is suitable for applications requiring field reprogrammability, as FLASH memory permits multiple program cycles without device replacement. The PIC16C54-LPE/P remains appropriate for fixed-code, high-volume production scenarios where OTP memory cost efficiency is prioritized and code updates are not anticipated.

Note the voltage supply range difference: PIC16C54-LPE/P operates from 2.5V to 6V, while PIC16F54-E/P operates from 2V to 5.5V. Design circuits must accommodate the substitute's lower maximum voltage if substitution is implemented. Additionally, the PIC16C54-LPE/P supports 40MHz operation, while the PIC16F54-E/P is rated for 20MHz maximum speed.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F54-E/P directly replace the PIC16C54-LPE/P in existing designs?

A: Direct pin-for-pin replacement is possible due to identical 18-DIP package format, I/O count, and peripheral configuration. However, verify that the design's maximum operating frequency requirement does not exceed 20MHz, as the substitute is rated for 20MHz versus the original's 40MHz. Confirm the circuit's maximum supply voltage does not exceed 5.5V.

Q: What is the primary functional difference between these parts?

A: The PIC16C54-LPE/P uses OTP (One-Time Programmable) memory, which cannot be erased or reprogrammed after initial programming. The PIC16F54-E/P uses FLASH memory, which supports multiple erase and reprogram cycles, enabling field updates and development flexibility.

Q: Are there supply voltage compatibility concerns?

A: The PIC16C54-LPE/P accepts 2.5V to 6V supply voltage, while the PIC16F54-E/P accepts 2V to 5.5V. If your circuit supplies voltage above 5.5V, the substitute cannot be used. If your circuit operates below 2.5V, the original part is required.

Q: Do both parts support the same peripheral functions?

A: Yes. Both devices include Power-On Reset (POR) and Watchdog Timer (WDT) peripherals, and both provide 12 I/O pins with identical memory configuration (768B program memory, 25 x 8 RAM).

Q: What packaging considerations apply to substitution?

A: Both parts use 18-DIP (0.300", 7.62mm) through-hole packaging. PCB footprints and socket compatibility are identical. The PIC16F54-E/P is supplied in Tube packaging, while original packaging specifications for the PIC16C54-LPE/P were not provided in the reference data.