PIC16C622T-20E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C622T-20E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 4.6KB OTP program memory, 128 bytes of RAM, and 13 I/O pins. Designed for embedded applications requiring external oscillator operation at up to 20MHz, this device integrates brown-out detection, power-on reset, and watchdog timer functionality. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

PIC16C622T-20E/SS

Microchip TechnologyIn Stock: 919PIC16C622T-20E/SS Datasheet

Current PartRFQ

PIC16C622-20I/SS

Microchip TechnologyIn Stock: 1103PIC16C622-20I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16C622T-20E/SS is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Memory Configuration: 4.6KB OTP program memory, 128 x 8 RAM
• I/O Count: 13 pins
• Operating Frequency: 20MHz maximum
• Supply Voltage Range: 3V to 6V
• Package: 20-SSOP form factor
• Peripheral Set: Brown-out Detect/Reset, POR, WDT

Direct substitutes must maintain identical electrical specifications and pinout compatibility. The primary substitute identified is the PIC16C622-20I/SS, which shares the base product number PIC16C622 and maintains all core functional parameters.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C622-20I/SS serves as the direct substitute for the obsolete PIC16C622T-20E/SS. Both devices are manufactured by Microchip Technology and maintain identical core specifications, memory architecture, I/O configuration, and peripheral functionality. The substitute is currently in active production status, ensuring availability for new designs and system replacements.

The primary distinction between the two parts is the operating temperature range: the main part supports -40°C to 125°C, while the substitute operates from -40°C to 85°C. Applications requiring operation above 85°C must evaluate this thermal limitation against system requirements.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), supporting standard manufacturing and storage practices. The 20-SSOP package format remains consistent, enabling direct PCB-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the PIC16C622-20I/SS replace the PIC16C622T-20E/SS in existing designs?

A: Yes. The substitute maintains identical electrical specifications, memory configuration, I/O count, and package format. Direct substitution is supported at the PCB level without design modifications.

Q: What is the significance of the temperature range difference?

A: The main part operates to 125°C; the substitute to 85°C. Applications operating above 85°C ambient or junction temperature must confirm the substitute meets thermal requirements.

Q: Are there pinout differences between these parts?

A: No. Both devices use the 20-SSOP package with identical pinout and signal assignments.

Q: Why is the main part listed as obsolete?

A: The PIC16C622T-20E/SS has been discontinued by Microchip Technology. The PIC16C622-20I/SS remains in active production and is the recommended source for new inventory.

Q: Do both parts require the same external oscillator configuration?

A: Yes. Both devices operate with external oscillator type and support 20MHz maximum frequency operation.

Q: Are there compliance or certification differences?

A: Both parts are ROHS3 compliant with MSL 1 rating. No compliance differences exist between the main part and substitute.