PIC16CE624-20I/P Equivalent & Substitute Parts

Part Overview

The PIC16CE624-20I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 1.75KB of OTP (One-Time Programmable) memory and operating at 20MHz. This device is classified as Active product status and is ROHS3 compliant. The need for equivalent or substitute parts arises from OTP memory limitations, as OTP devices cannot be reprogrammed after initial programming. Organizations requiring reprogrammable solutions or seeking enhanced peripheral capabilities may require alternative components from the PIC® 16F series that offer FLASH memory technology.

Substiute Parts

PIC16CE624-20I/P

Microchip TechnologyIn Stock: 974PIC16CE624-20I/P Datasheet

Current PartRFQ

PIC16F627A-I/P

Microchip TechnologyIn Stock: 4694PIC16F627A-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16CE624-20I/P is based on the following critical parameters that must remain consistent:

• Core Processor Architecture: PIC platform compatibility
• Core Size: 8-Bit processing capability
• Operating Speed: 20MHz clock frequency
• Program Memory Size: 1.75KB (1K x 14) capacity
• Voltage Supply Range: 3V ~ 5.5V operation
• Package Type: 18-DIP form factor
• Operating Temperature Range: -40°C ~ 85°C

The primary distinction between the main part and its substitute is the Program Memory Type: the PIC16CE624-20I/P uses OTP (One-Time Programmable) memory, while the PIC16F627A-I/P uses FLASH memory technology. This substitution is valid because both devices maintain identical core specifications, voltage requirements, package dimensions, and temperature ratings. FLASH memory provides reprogrammability, making it suitable for development, testing, and applications requiring firmware updates.

Parameter Comparison

Engineering Selection Recommendations

The PIC16F627A-I/P is a direct substitute for the PIC16CE624-20I/P based on matching core architecture, memory capacity, voltage specifications, and package form factor. Both devices maintain ROHS3 compliance and identical operating temperature ranges, ensuring regulatory and environmental consistency.

The PIC16F627A-I/P offers functional advantages: FLASH memory enables reprogramming without device replacement, increased RAM capacity (224 x 8 versus 96 x 8), and additional I/O pins (16 versus 13). These enhancements do not compromise compatibility with existing 18-DIP socket designs or electrical interface requirements.

Selection between these parts depends on application requirements: OTP devices are appropriate for high-volume production with fixed firmware, while FLASH devices are suitable for development, prototyping, and applications requiring firmware updates or field reprogramming.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F627A-I/P directly replace the PIC16CE624-20I/P in existing designs?

A: Yes. Both devices share identical package dimensions (18-DIP), voltage supply ranges (3V ~ 5.5V), operating temperature specifications (-40°C ~ 85°C), and core clock speed (20MHz). Pin-to-pin compatibility is maintained for all common signal connections.

Q: What is the primary difference between these two microcontrollers?

A: The PIC16CE624-20I/P uses OTP (One-Time Programmable) memory, while the PIC16F627A-I/P uses FLASH memory. OTP memory cannot be reprogrammed after initial programming. FLASH memory allows multiple reprogramming cycles, making it suitable for development and applications requiring firmware updates.

Q: Does the PIC16F627A-I/P have any additional features?

A: The PIC16F627A-I/P provides increased RAM capacity (224 x 8 bits versus 96 x 8 bits) and additional I/O pins (16 versus 13). These enhancements are backward-compatible and do not require circuit modifications.

Q: Are both devices RoHS compliant?

A: Yes. Both the PIC16CE624-20I/P and PIC16F627A-I/P are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Which device should be selected for new designs?

A: For new designs, the PIC16F627A-I/P is recommended due to FLASH memory reprogrammability, enhanced RAM capacity, and additional I/O capabilities. The PIC16CE624-20I/P remains suitable for high-volume production applications with fixed, unchanging firmware requirements.