PIC16LC620-04E/SS Equivalent & Substitute Parts

Part Overview

The PIC16LC620-04E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 896B of OTP (One-Time Programmable) memory, 80 bytes of RAM, and 13 I/O pins. Designed for embedded applications requiring low-power operation across a 2.5V to 6V supply range, this device integrates brown-out detection, power-on reset, and watchdog timer functionality.

The PIC16LC620-04E/SS carries an Obsolete product status. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility permits the use of active alternatives that maintain functional and electrical compatibility.

Key Parameters

Parameter	Value
Core Processor	PIC
Core Size	8-Bit
Speed	4MHz
Program Memory Size	896B (512 x 14)
Program Memory Type	OTP
RAM Size	80 x 8
Number of I/O	13
Voltage - Supply (Vcc/Vdd)	2.5V ~ 6V
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, WDT

Substitute Part Grouping Explanation

Substitution of the PIC16LC620-04E/SS is determined by strict alignment of the following electrical and mechanical parameters:

Core Processor Architecture: Must be PIC to ensure instruction set compatibility
Core Size: Must remain 8-Bit
Program Memory: Must be 896B (512 x 14) OTP
RAM Configuration: Must be 80 x 8
I/O Count: Must provide 13 I/O pins
Supply Voltage Range: Must support 2.5V ~ 6V operation
Package Type: Must be 20-SSOP with identical physical dimensions (0.209", 5.30mm Width)
Peripherals: Must include Brown-out Detect/Reset, POR, and WDT

The PIC16LC620-04I/SS qualifies as a direct substitute based on identical electrical specifications and package compatibility. The primary distinction is the operating temperature range and product status classification.

Parameter Comparison

Parameter	PIC16LC620-04E/SS (Main)	PIC16LC620-04I/SS (Substitute)
Manufacturer	Microchip Technology	Microchip Technology
Series	PIC® 16C	PIC® 16C
Core Processor	PIC	PIC
Core Size	8-Bit	8-Bit
Speed	4MHz	4MHz
Program Memory Size	896B (512 x 14)	896B (512 x 14)
Program Memory Type	OTP	OTP
RAM Size	80 x 8	80 x 8
Number of I/O	13	13
Voltage - Supply (Vcc/Vdd)	2.5V ~ 6V	2.5V ~ 6V
Operating Temperature	-40°C ~ 125°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)
Peripherals	Brown-out Detect/Reset, POR, WDT	Brown-out Detect/Reset, POR, WDT
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The PIC16LC620-04I/SS serves as a direct functional substitute for the PIC16LC620-04E/SS. Both devices maintain identical electrical characteristics, memory configuration, I/O architecture, and peripheral integration. The substitute part carries Active product status, ensuring continued availability and supply chain reliability compared to the Obsolete classification of the original part.

Both variants comply with ROHS3 and REACH requirements, supporting equivalent environmental and regulatory standards. The MSL rating of 1 (Unlimited) applies to both, indicating no moisture sensitivity constraints during storage or handling.

The operating temperature range differs: the main part supports -40°C to 125°C, while the substitute operates within -40°C to 85°C. Selection between these variants depends on application requirements within the specified thermal envelope. For applications operating exclusively within the -40°C to 85°C range, the PIC16LC620-04I/SS provides equivalent performance with the advantage of active product status and ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Are the PIC16LC620-04E/SS and PIC16LC620-04I/SS pin-compatible?

A: Yes. Both devices use the 20-SSOP package with identical physical dimensions (0.209", 5.30mm Width) and pinout configuration, enabling direct PCB-level substitution without layout modifications.

Q: What is the primary difference between these two parts?

A: The PIC16LC620-04I/SS is the active production variant of the PIC16LC620-04E/SS. The main part is classified as Obsolete, while the substitute maintains Active status. Additionally, the operating temperature range differs: -40°C to 125°C for the main part versus -40°C to 85°C for the substitute.

Q: Can I use the PIC16LC620-04I/SS in applications requiring operation above 85°C?

A: No. The PIC16LC620-04I/SS is specified for operation only within -40°C to 85°C. Applications requiring sustained operation above 85°C must use the PIC16LC620-04E/SS or identify alternative components rated for extended temperature ranges.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the PIC16LC620-04E/SS and PIC16LC620-04I/SS are ROHS3 Compliant and REACH Unaffected, meeting equivalent environmental and regulatory standards.

Q: What is the MSL rating for these microcontrollers?

A: Both parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices apply without special moisture control requirements.

Q: Are the memory configurations identical between these parts?

A: Yes. Both devices feature 896B (512 x 14) OTP program memory, 80 x 8 bytes of RAM, and 13 I/O pins. Firmware and application code developed for one part transfers directly to the other without modification.

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