PIC16F18446-E/SS Equivalent & Substitute Parts

Part Overview

The PIC16F18446-E/SS is an 8-bit microcontroller from Microchip Technology's PIC® XLP™ 16F series with integrated Functional Safety (FuSa) capabilities. This device operates at 32MHz with 28KB FLASH program memory and is housed in a 20-SSOP surface mount package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the product line.

Substiute Parts

PIC16F18446-E/SS

Microchip TechnologyIn Stock: 1000252PIC16F18446-E/SS Datasheet

Current PartRFQ

PIC16F18446-I/SS

Microchip TechnologyIn Stock: 3421PIC16F18446-I/SS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16F18446-E/SS is determined by strict equivalence across all electrical and mechanical parameters. The primary differentiator between the main part and its substitute is the packaging specification suffix. Both parts maintain identical core functionality, memory configuration, peripheral set, voltage specifications, and thermal operating range. The substitution is valid when the following criteria are met:

• Identical base product number (PIC16F18446)
• Identical core processor architecture (PIC 8-Bit)
• Identical speed rating (32MHz)
• Identical memory configuration (28KB FLASH, 256 x 8 EEPROM, 2K x 8 RAM)
• Identical voltage supply range (2.3V ~ 5.5V)
• Identical I/O count (18)
• Identical data converter specifications (A/D 17x12b; D/A 1x5b)
• Identical connectivity and peripheral features
• Identical operating temperature range (-40°C ~ 125°C)
• Identical package type (20-SSOP)
• Active product status with current manufacturing support

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16F18446-E/SS and PIC16F18446-I/SS are functionally equivalent devices with identical electrical specifications and mechanical compatibility. Selection between these parts is based on packaging and supply chain considerations rather than technical performance differences. Both parts maintain active production status with full regulatory compliance including RoHS3 certification and REACH compliance. The difference in part number suffix reflects packaging specification variations. Component selection should be based on availability, lead time, and packaging requirements specific to your procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Are PIC16F18446-E/SS and PIC16F18446-I/SS electrically identical?

A: Yes. Both parts share identical core specifications including processor architecture, clock speed, memory configuration, I/O count, voltage range, and peripheral features. They are functionally equivalent at the electrical level.

Q: What is the difference between these part numbers?

A: The suffix difference (E/SS versus I/SS) indicates a variation in packaging specification. Both parts use the same 20-SSOP package type with identical pinout and mechanical dimensions.

Q: Can I substitute PIC16F18446-I/SS for PIC16F18446-E/SS in my design?

A: Yes, provided your design accommodates the packaging specification associated with the substitute part. No circuit modifications or firmware changes are required due to the electrical equivalence of these devices.

Q: Are both parts currently available?

A: Both parts maintain active production status with current manufacturing support from Microchip Technology.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications.

Q: What is the operating temperature range for these microcontrollers?

A: Both parts operate across the temperature range of -40°C to 125°C (TA), suitable for industrial and extended temperature applications.

Q: How much program memory is available on these devices?

A: Both parts provide 28KB of FLASH program memory organized as 16K x 14 bits, with an additional 256 x 8 EEPROM and 2K x 8 RAM.