PIC16F628-20E/P Equivalent & Substitute Parts

Part Overview

The PIC16F628-20E/P is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, featuring 4.6KB FLASH program memory and operating at 20MHz. This device is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement. The PIC16F628-20E/P provides core embedded control functionality with integrated peripherals including UART/USART connectivity, PWM, watchdog timer, and brown-out detection across a 3V to 5.5V supply range.

Substiute Parts

PIC16F628-20E/P

Microchip TechnologyIn Stock: 1097PIC16F628-20E/P Datasheet

Current PartRFQ

PIC16F628A-E/P

Microchip TechnologyIn Stock: 2291PIC16F628A-E/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16F628-20E/P is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Memory Configuration: 4.6KB FLASH program memory, 128 x 8 EEPROM, 224 x 8 RAM
• Operating Frequency: 20MHz
• I/O Count: 16 I/O pins
• Peripheral Set: UART/USART, PWM, WDT, Brown-out Detect/Reset, POR
• Supply Voltage Range: 3V ~ 5.5V
• Temperature Range: -40°C ~ 125°C
• Package: 18-DIP (0.300", 7.62mm)
• Mounting: Through Hole

The PIC16F628A-E/P meets all these criteria and represents the direct active equivalent. The substitution is based on identical electrical specifications, memory architecture, peripheral functionality, and physical packaging.

Parameter Comparison

Engineering Selection Recommendations

The PIC16F628A-E/P is the direct equivalent for the obsolete PIC16F628-20E/P. Selection of the PIC16F628A-E/P is supported by:

• Product Status: Active manufacturing status ensures long-term availability and supply chain continuity
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical regulatory certifications (REACH Unaffected, ECCN EAR99, HTSUS 8542.31.0001)
• Electrical Equivalence: Identical core architecture, memory configuration, operating frequency, and peripheral functionality
• Physical Compatibility: Identical 18-DIP package and through-hole mounting enable direct PCB substitution without layout modification
• Packaging Availability: PIC16F628A-E/P is supplied in tube packaging with verified programmability

Frequently Asked Questions (FAQ)

Q: Can the PIC16F628A-E/P be used as a direct replacement for the PIC16F628-20E/P?

A: Yes. The PIC16F628A-E/P is electrically and mechanically equivalent. All electrical parameters, memory specifications, peripheral functionality, and package dimensions are identical. Direct PCB substitution is possible without design modification.

Q: What is the primary difference between these parts?

A: The PIC16F628-20E/P is obsolete, while the PIC16F628A-E/P is in active production. The "A" designation indicates an updated version with identical specifications but current manufacturing status and supply availability.

Q: Are there any compatibility concerns with existing firmware?

A: No compatibility concerns exist. Identical core architecture, instruction set, memory organization, and peripheral registers ensure existing firmware executes without modification.

Q: What packaging options are available for the substitute part?

A: The PIC16F628A-E/P is supplied in tube packaging. Both parts use the same 18-DIP (0.300", 7.62mm) through-hole package.

Q: Are regulatory certifications maintained with the substitute part?

A: Yes. The PIC16F628A-E/P maintains identical regulatory status: ROHS3 compliant, REACH unaffected, ECCN EAR99, and HTSUS 8542.31.0001.

Q: Is the operating temperature range the same?

A: Yes. Both parts operate across -40°C to 125°C (TA), maintaining identical thermal specifications.