PIC12C672-04E/MF Equivalent & Substitute Parts

Part Overview

The PIC12C672-04E/MF is an 8-bit microcontroller from Microchip Technology's PIC® 12C series, featuring 4.6KB OTP (One-Time Programmable) memory, 4MHz operation, and a compact 8-DFN-S surface mount package. This device is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The PIC12C672 was widely used in cost-sensitive embedded applications requiring minimal I/O and low power consumption.

Substiute Parts

PIC12C672-04E/MF

Microchip TechnologyIn Stock: 1115PIC12C672-04E/MF Datasheet

Current PartRFQ

PIC12F683-E/MF

Microchip TechnologyIn Stock: 3495PIC12F683-E/MF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC12C672-04E/MF is determined by the following critical parameters:

• Core Architecture: Must be PIC 8-bit processor
• Package Compatibility: Must use 8-DFN-S (6x5) surface mount package
• Memory Configuration: Program memory size of 4.6KB (2K x 14) and RAM of 128 x 8
• I/O Count: Minimum 5 I/O pins required
• Voltage Range: Supply voltage compatibility within 3V ~ 5.5V
• Operating Temperature: Support for -40°C ~ 125°C range

The PIC12F683-E/MF qualifies as a direct substitute based on these parameters. While it features FLASH memory (reprogrammable) instead of OTP, and enhanced specifications (20MHz vs 4MHz, additional peripherals), it maintains full compatibility with the critical electrical and mechanical requirements for socket-level replacement.

Parameter Comparison

Engineering Selection Recommendations

The PIC12F683-E/MF is the qualified substitute for the obsolete PIC12C672-04E/MF. Selection is based on:

• Product Status: The PIC12C672 is obsolete; the PIC12F683 is active and in production, ensuring long-term availability and supply chain continuity.
• Compliance: Both devices maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings, meeting regulatory requirements for new designs.
• Electrical Compatibility: Identical program memory size (4.6KB), RAM configuration (128 x 8), I/O count (5 pins), and overlapping voltage supply ranges ensure functional compatibility.
• Package Compatibility: Both use the 8-VDFN Exposed Pad package in 8-DFN-S (6x5) form factor, enabling direct PCB-level replacement without layout modifications.
• Enhanced Capabilities: The PIC12F683 provides FLASH memory (enabling field reprogramming), higher clock speed (20MHz), additional EEPROM (256 x 8), improved A/D resolution (10-bit vs 8-bit), and additional peripherals (Brown-out Detect/Reset, PWM), offering superior functionality for new applications.

Frequently Asked Questions (FAQ)

Q: Can the PIC12F683-E/MF be used as a direct replacement for the PIC12C672-04E/MF?

A: Yes. Both devices share identical package geometry (8-DFN-S), pin count (5 I/O), program memory size (4.6KB), RAM configuration (128 x 8), and operating temperature range (-40°C ~ 125°C). Electrical characteristics are compatible within the overlapping voltage supply range (3V ~ 5.5V).

Q: What are the key differences between these parts?

A: The primary differences are memory type (OTP vs FLASH), clock speed (4MHz vs 20MHz), EEPROM availability (none vs 256 x 8), and A/D resolution (8-bit vs 10-bit). The PIC12F683 also includes additional peripherals (Brown-out Detect/Reset, PWM) not present in the PIC12C672.

Q: Does the substitute part require firmware modifications?

A: Firmware compatibility depends on application-specific code. The identical instruction set architecture and memory organization support direct code migration. However, applications exploiting the PIC12C672's specific timing characteristics or peripheral limitations may require validation on the faster PIC12F683 platform.

Q: Are there any package or mounting considerations?

A: Both parts use identical surface mount packaging (8-VDFN Exposed Pad, 6x5mm). No PCB layout or assembly process changes are required for substitution.

Q: What is the supply voltage compatibility?

A: The PIC12C672 operates at 3V ~ 5.5V, while the PIC12F683 operates at 2V ~ 5.5V. The overlapping range (3V ~ 5.5V) ensures compatibility in existing designs. The PIC12F683 offers extended low-voltage operation capability.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the PIC12C672-04E/MF and PIC12F683-E/MF are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level).