PIC16C63AT-04I/SO Equivalent & Substitute Parts

Part Overview

The PIC16C63AT-04I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring OTP (One-Time Programmable) memory. This device operates at 4MHz with 7KB program memory and integrates essential peripherals including I2C, SPI, and UART/USART connectivity. The part is currently active in production and RoHS3 compliant, making it suitable for industrial and commercial applications. Finding equivalent or substitute parts may be necessary due to inventory constraints, packaging preferences, or performance requirements that exceed the original specification.

Substiute Parts

PIC16C63AT-04I/SO

Microchip TechnologyIn Stock: 847PIC16C63AT-04I/SO Datasheet

Current PartRFQ

PIC16C63A-04I/SO

Microchip TechnologyIn Stock: 936PIC16C63A-04I/SO Datasheet

DirectRFQ

PIC16F723A-I/SO

Microchip TechnologyIn Stock: 2297PIC16F723A-I/SO Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16C63AT-04I/SO is determined by strict alignment of core electrical and mechanical parameters. The following criteria define valid substitutes:

Critical Parameters for Substitution:

• Core processor architecture (PIC family)
• Core size (8-Bit)
• Program memory size (7KB / 4K x 14)
• RAM size (192 x 8)
• Package type (28-SOIC)
• Mounting type (Surface Mount)
• Operating temperature range (-40°C ~ 85°C)
• Connectivity interfaces (I2C, SPI, UART/USART)
• Peripheral set (Brown-out Detect/Reset, POR, PWM, WDT)

Allowable Variations:

• Program memory type (OTP to FLASH)
• Operating speed (4MHz to higher frequencies)
• Voltage supply range (4V ~ 5.5V to wider ranges)
• Number of I/O pins (22 to higher counts)
• Packaging format (Tape & Reel to Tube)
• Data converter additions (A/D converters)

Substitutes are grouped into two categories: direct equivalents with identical specifications and manufacturer-recommended alternatives with enhanced capabilities.

Parameter Comparison

Engineering Selection Recommendations

PIC16C63A-04I/SO (Direct Equivalent)

The PIC16C63A-04I/SO is a direct functional equivalent to the PIC16C63AT-04I/SO. Both devices share identical electrical specifications, memory configuration, and peripheral architecture. The primary difference is packaging format: the substitute is supplied in Tube packaging rather than Tape & Reel. This part maintains full RoHS3 compliance and active product status. Selection of this substitute is appropriate when Tube packaging meets assembly requirements and inventory availability is a consideration.

PIC16F723A-I/SO (Manufacturer-Recommended Alternative)

The PIC16F723A-I/SO is a manufacturer-recommended alternative from Microchip Technology's PIC® XLP™ 16F series. This device maintains core compatibility with identical program memory size (7KB), RAM configuration (192 x 8), and peripheral set. Key enhancements include:

• Operating speed increased to 20MHz (versus 4MHz)
• Program memory type upgraded to FLASH (versus OTP)
• Voltage supply range expanded to 1.8V ~ 5.5V (versus 4V ~ 5.5V)
• Additional I/O pins (25 versus 22)
• Integrated A/D converter (11x8b)
• Internal oscillator capability (versus external-only)

This alternative is suitable for applications requiring higher performance, reprogrammability, or lower voltage operation. The device maintains RoHS3 compliance and active product status. Tube packaging is standard for this part.

Frequently Asked Questions (FAQ)

Q: Can PIC16C63A-04I/SO be used as a direct replacement for PIC16C63AT-04I/SO?

A: Yes. The PIC16C63A-04I/SO is functionally equivalent with identical electrical and memory specifications. The only difference is packaging format (Tube versus Tape & Reel). Verify that your assembly process accommodates Tube packaging before substitution.

Q: What are the main differences between PIC16C63AT-04I/SO and PIC16F723A-I/SO?

A: The PIC16F723A-I/SO offers higher operating speed (20MHz versus 4MHz), FLASH memory instead of OTP, expanded voltage range (1.8V ~ 5.5V), additional I/O pins (25 versus 22), and integrated A/D conversion. All three devices share the same 28-SOIC package and core 8-bit architecture with 7KB program memory.

Q: Is the PIC16F723A-I/SO backward compatible with designs using PIC16C63AT-04I/SO?

A: The PIC16F723A-I/SO maintains the same 28-SOIC pinout and core peripheral set (I2C, SPI, UART/USART, PWM, WDT, Brown-out Detect/Reset, POR). However, firmware may require modification to account for the higher operating speed (20MHz) and FLASH memory characteristics. Pin-level compatibility is confirmed; functional compatibility depends on application-specific requirements.

Q: Are all three parts RoHS3 compliant?

A: Yes. PIC16C63AT-04I/SO, PIC16C63A-04I/SO, and PIC16F723A-I/SO are all RoHS3 compliant with MSL rating of 1 (Unlimited).

Q: What is the difference between OTP and FLASH memory in these devices?

A: OTP (One-Time Programmable) memory in PIC16C63AT-04I/SO and PIC16C63A-04I/SO can be programmed once during manufacturing. FLASH memory in PIC16F723A-I/SO allows multiple reprogramming cycles, enabling field updates and development flexibility.

Q: Can I use PIC16F723A-I/SO in a 4MHz application?

A: Yes. The PIC16F723A-I/SO operates at up to 20MHz but can be configured for lower clock speeds including 4MHz. Verify that your oscillator configuration and firmware timing loops are compatible with the internal oscillator option available on this device.

Q: What packaging options are available for these parts?

A: PIC16C63AT-04I/SO is supplied in Tape & Reel (TR) format. PIC16C63A-04I/SO and PIC16F723A-I/SO are supplied in Tube packaging. Confirm packaging compatibility with your assembly process before ordering.