PIC16C57-LPE/SP Equivalent & Substitute Parts

Part Overview

The PIC16C57-LPE/SP is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 3KB OTP program memory, 72 x 8 bytes of RAM, and 20 I/O pins. Designed for embedded applications requiring external oscillator operation, this device integrates Power-On Reset (POR) and Watchdog Timer (WDT) peripherals. The PIC16C57-LPE/SP carries an Obsolete product status, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

PIC16C57-LPE/SP

Microchip TechnologyIn Stock: 937PIC16C57-LPE/SP Datasheet

Current PartRFQ

PIC16C57-LPI/SP

Microchip TechnologyIn Stock: 2418PIC16C57-LPI/SP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16C57-LPE/SP is determined by strict alignment across the following critical parameters:

• Core Architecture & Memory: Identical PIC core processor, 8-bit configuration, 3KB OTP program memory (2K x 12), and 72 x 8 RAM
• Operational Specifications: Matching 40MHz speed, 20 I/O pins, and integrated POR and WDT peripherals
• Electrical Compatibility: Supply voltage range and external oscillator requirement
• Physical Form Factor: 28-DIP package with 0.300" (7.62mm) pitch
• Compliance & Certifications: ROHS3 compliance and EAR99 classification

The PIC16C57-LPI/SP qualifies as a direct substitute based on these parameters, with documented variations in product status and operating temperature range noted in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C57-LPI/SP is a functionally equivalent substitute for the obsolete PIC16C57-LPE/SP. Both devices share identical core architecture, memory configuration, I/O count, and peripheral integration. The substitute part carries Active product status, ensuring ongoing availability and manufacturing support.

Key considerations for selection:

• Supply Voltage Range: The substitute extends the upper voltage limit to 6.25V compared to 6V on the main part. Applications operating at or near 6V should confirm compatibility with the substitute's extended range.
• Operating Temperature Range: The substitute operates to 85°C maximum, compared to 125°C for the main part. Designs requiring operation above 85°C must retain the original part or identify alternative solutions.
• Compliance: Both parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 classification, ensuring regulatory alignment.
• Availability: The substitute offers significantly higher inventory availability (2400 Pcs vs. 891 Pcs), supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can the PIC16C57-LPI/SP directly replace the PIC16C57-LPE/SP in existing designs?

A: Yes, for applications operating within -40°C to 85°C and 2.5V to 6.25V. The core architecture, memory, I/O configuration, and peripherals are identical. Designs requiring operation above 85°C must use the original part.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The main part is Obsolete, indicating discontinued manufacturing. The substitute is Active, meaning Microchip Technology continues production and support. This ensures long-term availability for new designs and ongoing system support.

Q: Are the 28-DIP packages physically interchangeable?

A: Yes. Both parts use the 28-DIP (0.300", 7.62mm) package, ensuring identical pin spacing and board-level compatibility.

Q: What is the impact of the voltage supply range difference?

A: The substitute supports 2.5V to 6.25V versus 2.5V to 6V for the main part. Applications operating below 6V are unaffected. Systems designed for 6V operation remain compatible with the substitute's extended upper limit.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical ROHS3 compliance, REACH Unaffected status, Moisture Sensitivity Level 1, and EAR99 classification.