PIC16CE623-20/SS Equivalent & Substitute Parts

Part Overview

The PIC16CE623-20/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring OTP (One-Time Programmable) memory. This device operates at 20MHz with 896B of program memory and is housed in a 20-SSOP surface mount package. The product maintains Active status and is RoHS3 compliant.

Finding equivalent and substitute parts becomes necessary when OTP memory limitations require reprogramming capability, when higher I/O count is needed, or when extended temperature range operation is required for specific applications.

Substiute Parts

PIC16CE623-20/SS

Microchip TechnologyIn Stock: 757PIC16CE623-20/SS Datasheet

Current PartRFQ

PIC16F627A-I/SS

Microchip TechnologyIn Stock: 7504PIC16F627A-I/SS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16CE623-20/SS is based on the following critical parameters that must remain compatible:

• Core Processor Architecture: PIC platform ensures instruction set compatibility
• Core Size: 8-Bit processing capability
• Operating Speed: 20MHz clock frequency
• Package Type: 20-SSOP form factor with identical 0.209" width and 5.30mm dimensions
• Voltage Supply Range: 3V ~ 5.5V operating envelope
• Mounting Type: Surface mount technology

The primary distinction in substitute selection involves program memory technology. The PIC16CE623-20/SS uses OTP memory, which is write-once. Substitutes may employ FLASH memory technology, enabling field reprogramming and multiple write cycles. This represents a functional enhancement rather than a limitation, as FLASH-based devices maintain full backward compatibility with OTP-based designs while offering greater flexibility in development and production workflows.

Parameter Comparison

Engineering Selection Recommendations

The PIC16F627A-I/SS qualifies as a direct substitute for the PIC16CE623-20/SS based on the following engineering criteria:

Electrical Compatibility: Both devices operate within the identical 3V to 5.5V supply voltage range and maintain the same 20MHz clock frequency, ensuring pin-level functional equivalence for timing-critical applications.

Package Compatibility: Both devices use the 20-SSOP package with identical physical dimensions (0.209" width, 5.30mm), enabling direct PCB layout compatibility without redesign.

Compliance Status: Both parts maintain Active product status, ROHS3 compliance, and MSL Level 1 rating, meeting current manufacturing and environmental standards.

Memory Architecture Enhancement: The transition from OTP to FLASH memory technology provides increased program memory capacity (1.75KB versus 896B) and enables field reprogramming capability. The expanded RAM (224 x 8 versus 96 x 8) and increased I/O count (16 versus 13) represent functional enhancements compatible with existing designs.

Temperature Range Consideration: The PIC16F627A-I/SS extends the operating temperature range to -40°C ~ 85°C, providing broader environmental coverage compared to the 0°C ~ 70°C range of the original device.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F627A-I/SS be used as a direct replacement in existing PIC16CE623-20/SS designs?

A: Yes. Both devices share identical package geometry (20-SSOP), voltage supply range (3V ~ 5.5V), and clock frequency (20MHz). Pin assignments and electrical characteristics are compatible, enabling direct substitution without PCB modifications.

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

A: The main distinction is program memory technology. The PIC16CE623-20/SS uses OTP (One-Time Programmable) memory, while the PIC16F627A-I/SS uses FLASH memory. FLASH memory allows multiple reprogramming cycles, making it suitable for development, prototyping, and production environments where firmware updates are necessary.

Q: Does the PIC16F627A-I/SS provide additional functionality?

A: The PIC16F627A-I/SS offers enhanced specifications: 1.75KB program memory (versus 896B), 224 x 8 RAM (versus 96 x 8), and 16 I/O pins (versus 13). These increases provide greater design flexibility and expanded application capability while maintaining full backward compatibility.

Q: Are there any oscillator differences between these devices?

A: The PIC16CE623-20/SS requires an external oscillator, while the PIC16F627A-I/SS includes an internal oscillator option. This difference simplifies board design for the substitute part by reducing external component requirements.

Q: What is the operating temperature range difference?

A: The PIC16CE623-20/SS operates from 0°C to 70°C, while the PIC16F627A-I/SS operates from -40°C to 85°C. The extended range of the substitute part accommodates industrial and automotive applications requiring broader temperature coverage.

Q: Are both devices RoHS compliant?

A: Yes. Both the PIC16CE623-20/SS and PIC16F627A-I/SS are ROHS3 compliant with MSL Level 1 rating, meeting current environmental and manufacturing standards.

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

A: The PIC16F627A-I/SS is supplied in Tube packaging, maintaining the same 20-SSOP form factor as the original device.