PIC16C770T-E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C770T-E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 4.6KB OTP program memory, 256 bytes of RAM, and integrated peripherals including PWM, watchdog timer, and brown-out detection. The device operates at 20MHz with a 4V to 5.5V supply range and is housed in a 20-SSOP surface mount package.

This part carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems.

Substiute Parts

PIC16C770T-E/SS

Microchip TechnologyIn Stock: 1092PIC16C770T-E/SS Datasheet

Current PartRFQ

PIC16C770-E/SS

Microchip TechnologyIn Stock: 942PIC16C770-E/SS Datasheet

DirectRFQ

PIC16C770-I/SS

Microchip TechnologyIn Stock: 3511PIC16C770-I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PIC16C770T-E/SS are identified based on strict electrical and mechanical parameter matching within the PIC® 16C microcontroller family. The substitution logic is based on the following key parameters:

• Core Processor & Architecture: PIC processor family
• Core Size: 8-Bit processing capability
• Operating Speed: 20MHz clock frequency
• Program Memory: 4.6KB OTP configuration
• RAM Configuration: 256 x 8 byte organization
• Supply Voltage Range: 4V ~ 5.5V compatibility
• Analog Capability: A/D 6x12b converter specification
• I/O Count: 15 I/O pins
• Package Format: 20-SSOP surface mount package
• Connectivity Protocols: I2C and SPI support
• Integrated Peripherals: Brown-out detection, POR, PWM, and WDT functionality

Substitute parts must maintain identical or functionally equivalent specifications across all these parameters to ensure direct replacement capability without design modification.

Parameter Comparison

Engineering Selection Recommendations

PIC16C770-E/SS: This part is functionally equivalent to the main part across all electrical and mechanical parameters. It maintains Active product status with verified programmability through DiGi-Electronics. The operating temperature range matches the main part (-40°C ~ 125°C), ensuring compatibility in identical thermal environments. ROHS3 compliance and MSL 1 rating are maintained. This part is suitable for direct substitution in applications requiring the full temperature range.

PIC16C770-I/SS: This part is electrically equivalent with identical core specifications, memory configuration, and peripheral integration. It carries Active product status with verified programmability. The primary distinction is the operating temperature range, which is limited to -40°C ~ 85°C compared to the main part's -40°C ~ 125°C specification. This part is suitable for substitution only in applications where the maximum operating temperature does not exceed 85°C. ROHS3 compliance and MSL 1 rating are maintained. Packaging is specified as Tube format.

Both substitute parts maintain full compliance with RoHS3 and REACH requirements, matching the regulatory status of the main part.

Frequently Asked Questions (FAQ)

Q: Can PIC16C770-E/SS be used as a direct replacement for PIC16C770T-E/SS?

A: Yes. The PIC16C770-E/SS maintains identical electrical specifications, memory configuration, peripheral set, and operating temperature range (-40°C ~ 125°C). Both parts are housed in 20-SSOP packages and support the same supply voltage, clock speed, and connectivity protocols. The primary difference is product status: the main part is Obsolete while the substitute is Active.

Q: What is the key difference between PIC16C770-E/SS and PIC16C770-I/SS?

A: Both parts share identical core specifications, memory size, I/O count, and peripheral functionality. The critical difference is the operating temperature range: PIC16C770-E/SS operates from -40°C to 125°C, while PIC16C770-I/SS operates from -40°C to 85°C. Selection depends on the maximum ambient temperature requirement of your application. Additionally, PIC16C770-I/SS is supplied in Tube packaging.

Q: Are all three parts compatible with the same PCB layout?

A: Yes. All three parts use the identical 20-SSOP (0.209", 5.30mm Width) package format, enabling direct pin-for-pin substitution on the same PCB without layout modifications.

Q: Do the substitute parts maintain the same compliance certifications?

A: Yes. Both PIC16C770-E/SS and PIC16C770-I/SS are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the regulatory status of the main part.

Q: Which substitute part should I select for a new design?

A: For new designs, either Active substitute part is appropriate. Select PIC16C770-E/SS if your application requires operation up to 125°C. Select PIC16C770-I/SS if your maximum operating temperature is 85°C or below, as this part offers equivalent functionality within that thermal envelope.