PIC16CE623-20I/P Equivalent & Substitute Parts

Part Overview

The PIC16CE623-20I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 896B of OTP (One-Time Programmable) memory and operating at 20MHz. This device is classified as Active product status and is RoHS3 compliant. The PIC16CE623-20I/P is designed for embedded applications requiring low-cost, reliable microcontroller solutions with fixed firmware implementation through OTP memory technology.

Substitute parts become necessary when OTP memory devices reach end-of-life phases, when design revisions require reprogrammable memory, or when enhanced peripheral functionality is required while maintaining core compatibility with the 18-DIP package and electrical specifications.

Substiute Parts

PIC16CE623-20I/P

Microchip TechnologyIn Stock: 858PIC16CE623-20I/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 PIC16CE623-20I/P is determined by the following critical parameters that must remain compatible:

Mandatory Compatibility Parameters:

• Core Processor: PIC architecture
• Core Size: 8-Bit
• Speed: 20MHz minimum
• Package / Case: 18-DIP (0.300", 7.62mm)
• Voltage Supply Range: 3V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Mounting Type: Through Hole

Allowable Variation Parameters:

• Program Memory Type: OTP to FLASH conversion permitted (enables field reprogrammability)
• Program Memory Size: Equal or greater capacity
• EEPROM Size: Equal or greater capacity
• RAM Size: Equal or greater capacity
• Number of I/O: Equal or greater quantity
• Peripherals: Equal or enhanced functionality

The PIC16F627A-I/P qualifies as a direct substitute based on these parameters. The transition from OTP to FLASH memory technology represents an enhancement that maintains functional compatibility while providing superior flexibility for development and production environments.

Parameter Comparison

Engineering Selection Recommendations

The PIC16F627A-I/P is a qualified substitute for the PIC16CE623-20I/P based on the following engineering criteria:

Electrical Compatibility: Both devices operate within identical voltage supply ranges (3V ~ 5.5V) and temperature ranges (-40°C ~ 85°C). Clock speed specifications are matched at 20MHz, ensuring timing-critical applications maintain equivalent performance characteristics.

Physical Compatibility: Both devices utilize the 18-DIP package with 0.300" (7.62mm) pitch, enabling direct PCB footprint compatibility without layout modifications. Through-hole mounting type is consistent across both parts.

Regulatory Compliance: Both devices maintain ROHS3 compliance and Active product status with Microchip Technology, ensuring long-term availability and supply chain stability.

Memory Architecture Enhancement: The transition from OTP to FLASH memory in the PIC16F627A-I/P provides increased program memory (1.75KB versus 896B), expanded RAM (224 x 8 versus 96 x 8), and enhanced I/O capability (16 pins versus 13 pins). These enhancements are backward-compatible with applications designed for the original device.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F627A-I/P directly replace the PIC16CE623-20I/P in existing designs?

A: Yes. Both devices share identical package geometry (18-DIP), voltage specifications (3V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and clock speed (20MHz). Pin-to-pin compatibility is maintained for all core functionality. The PIC16F627A-I/P provides additional I/O pins (16 versus 13) and expanded memory resources, which do not create incompatibility with existing designs.

Q: What is the primary difference between OTP and FLASH memory in these devices?

A: OTP (One-Time Programmable) memory in the PIC16CE623-20I/P is programmed once during manufacturing and cannot be altered. FLASH memory in the PIC16F627A-I/P can be erased and reprogrammed multiple times, enabling field updates and development flexibility without component replacement.

Q: Are there any peripheral differences between these devices?

A: The PIC16F627A-I/P includes UART/USART connectivity and PWM peripherals in addition to the Brown-out Detect/Reset, POR, and WDT features present in the PIC16CE623-20I/P. These enhancements are additive and do not affect compatibility with designs utilizing only the common peripheral set.

Q: What packaging options are available for the PIC16F627A-I/P?

A: The PIC16F627A-I/P is supplied in Tube packaging. The 18-DIP package configuration remains consistent with the original device specification.

Q: Are both devices currently available from Microchip Technology?

A: Both devices maintain Active product status with Microchip Technology. The PIC16CE623-20I/P has 830 pieces in stock, while the PIC16F627A-I/P has 4600 pieces in stock, indicating robust availability for both options.