PIC16F872T-E/SS Equivalent & Substitute Parts

Part Overview

The PIC16F872T-E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, featuring 4.6KB FLASH program memory and operating at 20MHz. This device is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and production continuity. The substitute part maintains identical electrical and mechanical specifications while offering active product status and verified programmability.

Key Parameters

Parameter	Value
Core Processor	PIC
Core Size	8-Bit
Speed	20MHz
Program Memory Size	4.6KB (2K x 14)
Program Memory Type	FLASH
EEPROM Size	64 x 8
RAM Size	128 x 8
Voltage Supply (Vcc/Vdd)	4V ~ 5.5V
Number of I/O	22
Data Converters	A/D 5x10b
Connectivity	I2C, SPI
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	28-SSOP (0.209", 5.30mm Width)

Substitute Part Grouping Explanation

The PIC16F872-E/SS qualifies as a direct substitute for the PIC16F872T-E/SS based on the following substitution criteria:

Identical Electrical Parameters:

Core processor architecture (PIC 8-bit)
Operating frequency (20MHz)
Program memory capacity and type (4.6KB FLASH)
EEPROM and RAM configuration (64 x 8 and 128 x 8 respectively)
Supply voltage range (4V ~ 5.5V)
I/O count (22 pins)
Analog-to-digital converter specification (5x10b)
Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
Communication interfaces (I2C, SPI)
Temperature operating range (-40°C ~ 125°C)

Identical Mechanical Parameters:

Surface mount mounting type
28-SSOP package with identical physical dimensions (0.209", 5.30mm Width)

Compliance & Status:

Both parts maintain ROHS3 compliance
Both parts are REACH unaffected
Both parts share identical ECCN (EAR99) and HTSUS (8542.31.0001) classifications

The primary distinction is product status: PIC16F872T-E/SS is obsolete, while PIC16F872-E/SS maintains active status with verified programmability.

Parameter Comparison

Parameter	PIC16F872T-E/SS (Main)	PIC16F872-E/SS (Substitute)
Manufacturer	Microchip Technology	Microchip Technology
Series	PIC® 16F	PIC® 16F
Core Processor	PIC	PIC
Core Size	8-Bit	8-Bit
Speed	20MHz	20MHz
Program Memory Size	4.6KB (2K x 14)	4.6KB (2K x 14)
Program Memory Type	FLASH	FLASH
EEPROM Size	64 x 8	64 x 8
RAM Size	128 x 8	128 x 8
Voltage Supply (Vcc/Vdd)	4V ~ 5.5V	4V ~ 5.5V
Number of I/O	22	22
Data Converters	A/D 5x10b	A/D 5x10b
Connectivity	I2C, SPI	I2C, SPI
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	28-SSOP (0.209", 5.30mm Width)	28-SSOP (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001
Product Status	Obsolete	Active
Programmability Verification	Not Verified	Verified

Engineering Selection Recommendations

The PIC16F872-E/SS is the direct equivalent for the obsolete PIC16F872T-E/SS. Selection of the substitute part is based on:

Product Status: The PIC16F872-E/SS maintains active product status, ensuring ongoing availability and manufacturer support. The original PIC16F872T-E/SS is obsolete and subject to discontinuation.

Compliance Certifications: Both parts maintain identical regulatory compliance: ROHS3 compliant, REACH unaffected, and EAR99 export classification. No compliance risk exists in substitution.

Programmability: The PIC16F872-E/SS carries verified programmability status, confirming functional compatibility with existing development tools and programming procedures.

Electrical & Mechanical Equivalence: All electrical parameters, memory configurations, peripheral features, and mechanical specifications are identical. Direct pin-for-pin and functional compatibility is established.

Frequently Asked Questions (FAQ)

Q: Can PIC16F872-E/SS be used as a direct replacement for PIC16F872T-E/SS?

A: Yes. The PIC16F872-E/SS is a direct equivalent. All electrical specifications, memory configurations, I/O count, peripheral features, operating temperature range, and 28-SSOP package dimensions are identical. No circuit modifications are required.

Q: What is the difference between PIC16F872T-E/SS and PIC16F872-E/SS?

A: The primary difference is product status. PIC16F872T-E/SS is classified as obsolete, while PIC16F872-E/SS maintains active status. The substitute part also carries verified programmability certification. All technical specifications are identical.

Q: Are there any packaging differences?

A: No. Both parts use the 28-SSOP surface mount package with identical physical dimensions (0.209" width, 5.30mm). Packaging material differs (tube for the substitute), but this does not affect component functionality or PCB assembly compatibility.

Q: Will existing firmware and development tools work with the substitute part?

A: Yes. The PIC16F872-E/SS maintains identical core processor architecture, memory organization, and peripheral configuration. Existing firmware compiled for PIC16F872T-E/SS will execute without modification on PIC16F872-E/SS.

Q: Are there any compliance or regulatory concerns with substitution?

A: No. Both parts maintain identical ROHS3 compliance, REACH status, and export classifications (EAR99). Substitution introduces no regulatory risk.

Q: What is the supply voltage requirement for the substitute part?

A: The PIC16F872-E/SS operates at 4V to 5.5V supply voltage, identical to the original part. No power supply modifications are necessary.

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