PIC16C712T-20E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C712T-20E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 1.75KB OTP program memory, 128 bytes of RAM, and 13 I/O pins. This device is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and component procurement. The part operates at 20MHz with a supply voltage range of 4V to 5.5V and includes integrated peripherals such as brown-out detection, power-on reset, PWM, and watchdog timer functionality. Surface mount packaging in 20-SSOP format enables compact board integration.

Key Parameters

Parameter	Value
Core Processor	PIC
Core Size	8-Bit
Speed	20MHz
Program Memory Size	1.75KB (1K x 14)
Program Memory Type	OTP
RAM Size	128 x 8
Number of I/O	13
Voltage - Supply (Vcc/Vdd)	4V ~ 5.5V
Data Converters	A/D 4x8b
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	20-SSOP (0.209", 5.30mm Width)
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT

Substitute Part Grouping Explanation

Substitution of the PIC16C712T-20E/SS is determined by strict equivalence across the following critical parameters:

Core Processor Architecture: PIC platform
Core Size: 8-Bit
Operating Speed: 20MHz
Program Memory: 1.75KB OTP
RAM Configuration: 128 x 8
I/O Count: 13 pins
Supply Voltage Range: 4V ~ 5.5V
Package Type: 20-SSOP form factor
Peripheral Set: Brown-out Detect/Reset, POR, PWM, WDT
Data Converter: A/D 4x8b

The identified substitute parts maintain identical electrical and mechanical specifications across all these parameters, ensuring functional compatibility in existing designs.

Parameter Comparison

Parameter	PIC16C712T-20E/SS (Main)	PIC16C712-20E/SS	PIC16C712-20I/SS
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology
Core Processor	PIC	PIC	PIC
Core Size	8-Bit	8-Bit	8-Bit
Speed	20MHz	20MHz	20MHz
Program Memory Size	1.75KB (1K x 14)	1.75KB (1K x 14)	1.75KB (1K x 14)
Program Memory Type	OTP	OTP	OTP
RAM Size	128 x 8	128 x 8	128 x 8
Number of I/O	13	13	13
Voltage - Supply (Vcc/Vdd)	4V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V
Data Converters	A/D 4x8b	A/D 4x8b	A/D 4x8b
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	20-SSOP (0.209", 5.30mm Width)	20-SSOP (0.209", 5.30mm Width)	20-SSOP (0.209", 5.30mm Width)
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both PIC16C712-20E/SS and PIC16C712-20I/SS are active product alternatives to the obsolete PIC16C712T-20E/SS. Selection between these substitutes is based on the following criteria:

PIC16C712-20E/SS: This part maintains the full operating temperature range of -40°C to 125°C, matching the original device specification. It is verified as programmable and carries active product status with ROHS3 compliance and REACH unaffected certification. This variant is suitable for applications requiring the extended temperature range.

PIC16C712-20I/SS: This part operates within a reduced temperature range of -40°C to 85°C. It is also verified as programmable and maintains active product status with identical compliance certifications. This variant is appropriate for applications with standard industrial temperature requirements.

Both parts are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity) and REACH unaffected status, ensuring regulatory compliance for commercial and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can PIC16C712-20E/SS and PIC16C712-20I/SS be used interchangeably with PIC16C712T-20E/SS?

A: Yes, both parts are functionally equivalent substitutes. The primary difference is the operating temperature range. PIC16C712-20E/SS supports -40°C to 125°C, while PIC16C712-20I/SS supports -40°C to 85°C. Selection depends on your application's temperature requirements.

Q: What is the significance of the temperature range difference between the E and I variants?

A: The E-grade variant (PIC16C712-20E/SS) is rated for extended temperature operation up to 125°C, suitable for high-temperature environments. The I-grade variant (PIC16C712-20I/SS) is rated to 85°C, appropriate for standard industrial applications. Choose based on your thermal environment specifications.

Q: Are all three parts packaged identically?

A: Yes. All three parts use the 20-SSOP surface mount package with 0.209" width and 5.30mm dimensions. PCB footprints and board layout remain unchanged when substituting between these parts.

Q: What compliance certifications apply to the substitute parts?

A: Both substitute parts are ROHS3 compliant, have MSL rating of 1 (unlimited), and are REACH unaffected. These certifications match the original part and ensure regulatory compliance for commercial and industrial applications.

Q: Why is the original PIC16C712T-20E/SS listed as obsolete?

A: The original part has been discontinued by Microchip Technology. The active alternatives PIC16C712-20E/SS and PIC16C712-20I/SS provide identical functionality and are recommended for new designs and ongoing production support.

Q: Are there any programming or firmware compatibility concerns when switching to a substitute part?

A: No. All three parts share identical core processor architecture, memory configuration, and peripheral set. Existing firmware and programming procedures remain valid across all variants.

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