PIC12CE673/JW Equivalent & Substitute Parts

Part Overview

The PIC12CE673/JW is an 8-bit microcontroller from Microchip Technology's PIC® 12C series, featuring 1.75KB EPROM program memory with UV erasability, 128 x 8 RAM, and 16 x 8 EEPROM. This device operates at 10MHz with a 3V to 5.5V supply range and includes integrated analog-to-digital conversion (4x8-bit) and standard peripherals (POR, WDT). The product is classified as obsolete, making equivalent or substitute parts necessary for ongoing system support and new designs requiring similar functionality.

Substiute Parts

PIC12CE673/JW

Microchip TechnologyIn Stock: 689PIC12CE673/JW Datasheet

Current PartRFQ

PIC12F675-I/P

Microchip TechnologyIn Stock: 59225PIC12F675-I/P Datasheet

DirectRFQ

PIC12CE673-10/P

Microchip TechnologyIn Stock: 1052PIC12CE673-10/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC12CE673/JW is determined by the following critical parameters:

• Core Processor & Architecture: Must be PIC microcontroller with 8-bit core
• Program Memory Capacity: Must provide 1.75KB (1K x 14) minimum
• I/O Count: Must maintain 5 I/O pins
• Analog Capability: Must include 4-channel analog-to-digital converter
• Peripherals: Must include POR and WDT
• Package Compatibility: Must support 8-pin DIP form factor (0.300", 7.62mm pitch)
• Supply Voltage Range: Must operate within 3V to 5.5V envelope

Two substitute parts meet these criteria with varying trade-offs in memory technology, speed, and compliance status.

Parameter Comparison

Engineering Selection Recommendations

PIC12CE673-10/P (MFR Recommended Substitute)

This part is the manufacturer-recommended alternative, maintaining identical electrical specifications and operating parameters as the main part. It preserves the 10MHz speed, 3V to 5.5V supply range, 128 x 8 RAM, and 16 x 8 EEPROM. The primary difference is the transition from UV-erasable EPROM to One-Time Programmable (OTP) memory, eliminating field reprogramming capability. This part is active in production and ROHS3 compliant, providing long-term availability and regulatory compliance for new designs.

PIC12F675-I/P (Direct Substitute)

This part provides functional equivalence with enhanced specifications. It maintains the 1.75KB program memory, 5 I/O pins, and 4-channel analog-to-digital converter. Key differences include FLASH memory (enabling field reprogramming), 20MHz operation speed (2x faster), extended operating temperature range (-40°C to 85°C), and expanded EEPROM (128 x 8 versus 16 x 8). The A/D converter offers 10-bit resolution versus 8-bit, and RAM is reduced to 64 x 8. This part is active in production and ROHS3 compliant. The lower minimum supply voltage (2V) provides additional flexibility for battery-powered applications.

Frequently Asked Questions (FAQ)

Q: Can PIC12CE673-10/P directly replace PIC12CE673/JW in existing designs?

A: Yes. Both parts share identical electrical specifications, operating temperature range, supply voltage requirements, and pin configuration. The package transitions from 8-CDIP (windowed) to 8-PDIP (standard), which is mechanically compatible on through-hole PCBs. The functional difference is memory technology: OTP versus UV-erasable EPROM. Once programmed, OTP devices cannot be erased, eliminating field reprogramming capability.

Q: What are the trade-offs when using PIC12F675-I/P?

A: The PIC12F675-I/P offers FLASH memory (field-reprogrammable), double the clock speed (20MHz), extended temperature range, and higher A/D resolution (10-bit). RAM is reduced from 128 x 8 to 64 x 8 bytes. EEPROM capacity increases from 16 x 8 to 128 x 8 bytes. The minimum supply voltage is lower (2V), enabling operation in lower-power applications. These enhancements make it suitable for designs requiring reprogrammability and higher performance, though code must account for reduced RAM if the original design utilized the full 128-byte space.

Q: Are package differences between 8-CDIP and 8-PDIP significant?

A: Both packages use identical 0.300" (7.62mm) pitch and 8-pin through-hole configuration. The primary difference is the windowed ceramic package (CDIP) of the original part versus the plastic package (PDIP) of substitutes. Electrically and mechanically, they are interchangeable on standard through-hole PCBs. The windowed package was used for UV erasure capability; plastic packages are standard for OTP and FLASH devices.

Q: Which substitute should be selected for new designs?

A: For new designs requiring field reprogrammability, select PIC12F675-I/P. For designs where one-time programming is acceptable and cost optimization is prioritized, select PIC12CE673-10/P. Both are active products with ROHS3 compliance and long-term availability.

Q: Are there supply voltage compatibility concerns?

A: The main part and PIC12CE673-10/P both require 3V to 5.5V. PIC12F675-I/P operates from 2V to 5.5V, providing broader compatibility. If the original design operates below 3V, only PIC12F675-I/P is suitable.