PIC12C671T-04E/SM Equivalent & Substitute Parts

Part Overview

The PIC12C671T-04E/SM is an 8-bit microcontroller from Microchip Technology's PIC® 12C series, designed for embedded applications requiring low-pin-count solutions. This device features 1.75KB of OTP (One-Time Programmable) memory, 128 x 8 bytes of RAM, and operates at 4MHz with a supply voltage range of 3V to 5.5V. The component is housed in an 8-SOIJ surface mount package and is currently in active production status. Equivalent and substitute parts are identified based on matching core processor architecture, memory configuration, I/O count, and thermal operating range to ensure functional compatibility in target applications.

Substiute Parts

PIC12C671T-04E/SM

Microchip TechnologyIn Stock: 1163PIC12C671T-04E/SM Datasheet

Current PartRFQ

PIC12C671-04E/SM

Microchip TechnologyIn Stock: 2080PIC12C671-04E/SM Datasheet

DirectRFQ

PIC12F675T-E/SN

Microchip TechnologyIn Stock: 31630PIC12F675T-E/SN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PIC12C671T-04E/SM are identified based on the following criteria:

Primary Substitution Criteria:

• Core processor architecture: PIC microcontroller family
• Core size: 8-Bit
• Program memory size: 1.75KB (1K x 14)
• Number of I/O pins: 5
• Operating temperature range: -40°C ~ 125°C
• Mounting type: Surface Mount
• Package family: 8-SOIC

Allowed Variations:

• Program memory type (OTP to FLASH)
• Operating speed (4MHz to 20MHz)
• Supply voltage range (3V ~ 5.5V to 2V ~ 5.5V)
• RAM size (128 x 8 to 64 x 8)
• Data converter resolution (A/D 4x8b to A/D 4x10b)
• Packaging format (Tape & Reel to Tube or Cut Tape)

These variations are acceptable because they represent functional enhancements or alternative delivery formats that do not compromise the core application requirements.

Parameter Comparison

Engineering Selection Recommendations

PIC12C671-04E/SM is a direct equivalent to the PIC12C671T-04E/SM with identical electrical specifications and core functionality. The primary difference is packaging format: Tube versus Tape & Reel. Both devices are ROHS3 compliant, active production status, and suitable for direct substitution in applications where packaging format does not impose supply chain constraints.

PIC12F675T-E/SN is a functional substitute with the following considerations:

• Memory Type Enhancement: FLASH memory replaces OTP, enabling field reprogramming and development flexibility.
• Speed Upgrade: 20MHz operation versus 4MHz provides higher processing capability for timing-critical applications.
• Supply Voltage Advantage: 2V minimum supply extends low-power operation capability.
• Data Converter Improvement: 10-bit A/D resolution versus 8-bit provides enhanced analog measurement precision.
• RAM Reduction: 64 x 8 bytes versus 128 x 8 bytes may require code optimization in memory-intensive applications.
• Package Dimension Variation: 8-SOIC (0.154", 3.90mm Width) versus 8-SOIC (0.209", 5.30mm Width) requires PCB layout verification for pin spacing compatibility.

All three parts maintain identical I/O count (5), operating temperature range (-40°C ~ 125°C), and core processor architecture, ensuring functional compatibility within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can PIC12C671-04E/SM replace PIC12C671T-04E/SM directly?

A: Yes. Both parts are electrically and functionally identical. The difference is packaging format: Tube versus Tape & Reel. Direct substitution is valid provided supply chain and assembly equipment accommodate the alternative packaging format.

Q: What are the key differences between PIC12C671T-04E/SM and PIC12F675T-E/SN?

A: The primary differences are program memory type (OTP versus FLASH), operating speed (4MHz versus 20MHz), supply voltage minimum (3V versus 2V), A/D resolution (8-bit versus 10-bit), RAM size (128 x 8 versus 64 x 8), and package dimensions (0.209" versus 0.154" width). All three maintain 5 I/O pins, 1.75KB program memory, and -40°C ~ 125°C operating range.

Q: Is PIC12F675T-E/SN suitable for applications designed for PIC12C671T-04E/SM?

A: Functional substitution is valid when application requirements do not depend on OTP memory exclusivity or 4MHz speed limitation. The FLASH memory type, higher speed, and improved A/D resolution represent enhancements. However, reduced RAM (64 x 8 versus 128 x 8) and different package dimensions require verification against specific application constraints.

Q: What is the significance of the package dimension difference in PIC12F675T-E/SN?

A: The PIC12F675T-E/SN uses an 8-SOIC package with 0.154" width versus 0.209" width for the PIC12C671T-04E/SM. This dimension variation affects PCB layout, pin spacing, and assembly compatibility. PCB design must be verified before substitution.

Q: Are all three parts RoHS compliant?

A: Yes. PIC12C671T-04E/SM, PIC12C671-04E/SM, and PIC12F675T-E/SN are all ROHS3 compliant with MSL rating of 1 (Unlimited), suitable for applications requiring environmental compliance certification.

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

A: OTP (One-Time Programmable) memory in PIC12C671T-04E/SM and PIC12C671-04E/SM is programmed once during manufacturing and cannot be reprogrammed. FLASH memory in PIC12F675T-E/SN enables field reprogramming, supporting development iterations and firmware updates without component replacement.