PIC16F628-20E/SS Equivalent & Substitute Parts

Part Overview

The PIC16F628-20E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring compact flash memory and integrated peripherals. This device features 4.6KB of FLASH program memory, 224 bytes of RAM, and 128 bytes of EEPROM, operating at speeds up to 20MHz across a supply voltage range of 3V to 5.5V. The component is housed in a 20-SSOP surface mount package and maintains Active product status with full RoHS3 compliance. Substitute parts are identified when electrical specifications, memory configurations, package types, and operating parameters remain identical or functionally equivalent.

Substiute Parts

PIC16F628-20E/SS

Microchip TechnologyIn Stock: 1238PIC16F628-20E/SS Datasheet

Current PartRFQ

PIC16F628A-E/SS

Microchip TechnologyIn Stock: 3828PIC16F628A-E/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16F628-20E/SS is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Memory Configuration: 4.6KB FLASH, 128 x 8 EEPROM, 224 x 8 RAM
• Operating Speed: 20MHz maximum frequency
• Supply Voltage Range: 3V to 5.5V
• Package Type: 20-SSOP surface mount with identical physical dimensions (0.209", 5.30mm Width)
• Peripheral Set: UART/USART connectivity, Brown-out Detect/Reset, POR, PWM, WDT
• I/O Count: 16 I/O pins
• Operating Temperature Range: -40°C to 125°C
• Compliance Status: RoHS3 compliance, REACH unaffected status

The PIC16F628A-E/SS qualifies as a direct substitute based on complete alignment with all specified electrical, memory, package, and environmental parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16F628-20E/SS and PIC16F628A-E/SS maintain Active product status from Microchip Technology, ensuring continued availability and support. Both components carry identical RoHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements for industrial and commercial applications.

Selection between these parts should be based on inventory availability and supply chain considerations, as electrical performance, memory architecture, package specifications, and operating parameters are fully equivalent. The PIC16F628A-E/SS currently maintains higher inventory levels (3774 units versus 1172 units), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Are the PIC16F628-20E/SS and PIC16F628A-E/SS pin-compatible?

A: Yes. Both devices use the 20-SSOP package with identical physical dimensions (0.209", 5.30mm Width) and pin configuration, supporting direct PCB-level substitution without layout modifications.

Q: Do these parts have identical memory specifications?

A: Yes. Both contain 4.6KB FLASH program memory, 128 x 8 EEPROM, and 224 x 8 RAM with identical addressing and access characteristics.

Q: What is the operating frequency range for both parts?

A: Both parts operate at a maximum frequency of 20MHz with identical internal oscillator architecture.

Q: Are both parts suitable for the same supply voltage applications?

A: Yes. Both parts operate across the identical supply voltage range of 3V to 5.5V, supporting applications from battery-powered to standard 5V logic systems.

Q: Do both parts include the same peripheral set?

A: Yes. Both include UART/USART connectivity, Brown-out Detect/Reset, Power-On Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT) functions.

Q: What is the temperature operating range for both devices?

A: Both parts operate across -40°C to 125°C ambient temperature range, suitable for industrial and extended-temperature applications.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are RoHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level).