PIC16F819-I/SSTSL Equivalent & Substitute Parts

Part Overview

The PIC16F819-I/SSTSL is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring compact flash memory and integrated peripherals. This device operates at 20MHz with 4.6KB of FLASH program memory and includes integrated analog-to-digital conversion, PWM, and communication interfaces. The part is currently in active production status with 703 units available in new original stock. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and optimize procurement across different packaging and inventory scenarios.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Core Processor	PIC
Core Size	8-Bit
Speed	20MHz
Program Memory Size	4.6KB (2K x 14)
Program Memory Type	FLASH
EEPROM Size	256 x 8
RAM Size	256 x 8
Number of I/O	16
Voltage Supply (Vcc/Vdd)	4V ~ 5.5V
Data Converters	A/D 5x10b
Connectivity	I2C, SPI
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Oscillator Type	Internal
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	20-SSOP (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PIC16F819-I/SSTSL is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part PIC16F819-I/SS maintains identical specifications in the following key areas:

Core processor architecture (PIC 8-bit)
Operating frequency (20MHz)
Memory configuration (4.6KB FLASH, 256 x 8 EEPROM, 256 x 8 RAM)
I/O count (16 pins)
Supply voltage range (4V ~ 5.5V)
Peripheral set (Brown-out Detect/Reset, POR, PWM, WDT)
Communication interfaces (I2C, SPI)
Analog conversion capability (A/D 5x10b)
Operating temperature range (-40°C ~ 85°C)
Package footprint (20-SSOP, 0.209" × 5.30mm)
Compliance certifications (ROHS3, REACH Unaffected, EAR99)

The primary difference between these parts is the packaging format: the main part uses tape and reel packaging, while the substitute uses tube packaging. Both parts are manufactured by Microchip Technology and maintain active product status.

Parameter Comparison

Parameter	PIC16F819-I/SSTSL	PIC16F819-I/SS
Manufacturer	Microchip Technology	Microchip Technology
Base Product Number	PIC16F819	PIC16F819
Series	PIC® 16F	PIC® 16F
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	256 x 8	256 x 8
RAM Size	256 x 8	256 x 8
Number of I/O	16	16
Voltage Supply (Vcc/Vdd)	4V ~ 5.5V	4V ~ 5.5V
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
Oscillator Type	Internal	Internal
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	20-SSOP (0.209", 5.30mm Width)	20-SSOP (0.209", 5.30mm Width)
Supplier Device Package	20-SSOP	20-SSOP
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	Active	Active
Packaging Format	Tape and Reel	Tube

Engineering Selection Recommendations

Both the PIC16F819-I/SSTSL and PIC16F819-I/SS are suitable for direct substitution based on electrical and mechanical equivalence. Selection between these parts should be based on the following factors:

Packaging requirements: The main part (SSTSL) is supplied in tape and reel format, suitable for high-volume automated assembly. The substitute (SS) is supplied in tube format, suitable for lower-volume or manual assembly operations.
Inventory availability: The substitute part (PIC16F819-I/SS) currently has higher stock availability (2200 units) compared to the main part (703 units).
Compliance status: Both parts maintain identical compliance certifications (ROHS3 Compliant, REACH Unaffected, EAR99 classification).
Product status: Both parts are in active production, ensuring long-term availability and support.

Frequently Asked Questions (FAQ)

Q: Can PIC16F819-I/SS be used as a direct replacement for PIC16F819-I/SSTSL in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (tape and reel versus tube). If your assembly process accommodates tube packaging, direct substitution is valid.

Q: Are there any functional differences between these two part numbers?

A: No. Both parts share identical core specifications including processor architecture, memory configuration, I/O count, operating frequency, voltage range, and peripheral set.

Q: What does the suffix difference (SSTSL vs. SS) indicate?

A: The suffix indicates the packaging format. SSTSL denotes tape and reel packaging with lead-free termination. SS denotes tube packaging with lead-free termination. The electrical specifications remain unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both PIC16F819-I/SSTSL and PIC16F819-I/SS are ROHS3 Compliant and REACH Unaffected.

Q: Can I mix these parts in the same production batch?

A: Yes, provided your assembly equipment can handle both packaging formats. The parts are functionally identical and will perform identically in the circuit.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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