PIC16C55-10E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C55-10E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring basic control logic and I/O management. This device features 768B of OTP (One-Time Programmable) memory, 25 x 8 bytes of RAM, and 20 I/O pins in a 28-SSOP surface mount package. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, legacy design maintenance, and production continuity.

Substiute Parts

PIC16C55-10E/SS

Microchip TechnologyIn Stock: 958PIC16C55-10E/SS Datasheet

Current PartRFQ

Key Parameters

Substitute Part Grouping Explanation

No direct substitute parts are available in the provided database. Substitution for the PIC16C55-10E/SS requires matching the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Program Memory: 768B OTP minimum
• RAM: 25 x 8 bytes minimum
• I/O Count: 20 pins minimum
• Operating Voltage: 4.5V to 5.5V supply range
• Speed: 10MHz operation capability
• Package: 28-SSOP surface mount form factor
• Temperature Range: -40°C to 125°C operating window
• Compliance: ROHS3 compliance required

Due to the obsolete status of this device and the specific combination of memory configuration (768B OTP), I/O pin count, and package constraints, alternative solutions may require evaluation of newer PIC microcontroller families or consideration of pin-compatible devices from the extended PIC 16C series if available through secondary sources.

Parameter Comparison

No substitute parts are currently available for comparison.

Engineering Selection Recommendations

The PIC16C55-10E/SS is classified as an obsolete product. When this device reaches end-of-life in production environments, selection of alternatives must prioritize:

• ROHS3 Compliance: Any replacement must maintain ROHS3 compliance status to meet current manufacturing and environmental standards
• Package Compatibility: The 28-SSOP package footprint must be preserved to avoid PCB redesign
• Memory Architecture: OTP memory type and 768B capacity define the programmable logic scope; alternatives with flash memory may require firmware adaptation
• Electrical Specifications: Supply voltage range (4.5V–5.5V) and operating temperature (-40°C–125°C) must be maintained for system reliability

Evaluation of substitute devices should be conducted through Microchip Technology's product selector tools or authorized distributors specializing in legacy component sourcing.

Frequently Asked Questions (FAQ)

Q: Why is the PIC16C55-10E/SS classified as obsolete? A: The PIC16C55-10E/SS belongs to an earlier generation of PIC microcontrollers. Microchip Technology has transitioned product lines to newer architectures with enhanced features, larger memory configurations, and improved peripheral integration.

Q: Can I use a different package variant of the PIC16C55? A: Package variants (such as DIP or PLCC) may exist for the PIC16C55 base product number, but they are not listed as direct substitutes in this reference. Any package change requires PCB redesign and layout validation.

Q: What is the difference between OTP and Flash memory in microcontrollers? A: OTP (One-Time Programmable) memory can be programmed once during manufacturing or initial deployment. Flash memory allows multiple reprogramming cycles. The PIC16C55-10E/SS uses OTP, which affects firmware update strategies.

Q: Is the 28-SSOP package still available for modern PIC microcontrollers? A: Newer PIC families may use different package options. Verification with Microchip Technology or authorized distributors is necessary to confirm package availability for potential replacements.

Q: What does ROHS3 compliance mean for this component? A: ROHS3 compliance indicates the device meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This is mandatory for products sold in the European Union and many other markets.

Q: How do I verify compatibility if I find an alternative PIC microcontroller? A: Compatibility verification requires matching core processor architecture, memory capacity, I/O pin count, package footprint, voltage specifications, and temperature range. Datasheet comparison and functional testing are essential before production implementation.