C8051F206 Equivalent & Substitute Parts

Part Overview

The C8051F206 is an 8-bit microcontroller from Silicon Labs' C8051F2xx series, featuring an 8051 core processor operating at 25MHz with 8KB of FLASH program memory and 1.25KB of RAM. The device integrates SPI and UART/USART connectivity, along with analog-to-digital conversion capabilities (32x12-bit), making it suitable for embedded control applications requiring moderate processing power and mixed-signal functionality.

The C8051F206 is classified as Obsolete, indicating it has reached end-of-life status and is no longer recommended for new designs. This necessitates identifying functionally equivalent alternatives that maintain compatibility with existing applications while offering improved product status and compliance certifications.

Key Parameters

Parameter	Value
Core Processor	8051
Core Size	8-Bit
Speed	25MHz
Program Memory Size	8KB (8K x 8)
Program Memory Type	FLASH
RAM Size	1.25K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 3.6V
Data Converters	A/D 32x12b
Connectivity	SPI, UART/USART
Number of I/O	32
Package / Case	48-TQFP (7x7)
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the C8051F206 is determined by strict equivalence across the following critical parameters:

Core Architecture: 8051-based processor
Memory Configuration: 8KB FLASH program memory, 1.25KB RAM
Operating Frequency: 25MHz
Voltage Range: 2.7V ~ 3.6V supply compatibility
Package Format: 48-TQFP (7x7) surface mount
Peripheral Set: SPI and UART/USART connectivity with integrated A/D conversion (32x12-bit)
I/O Count: 32 I/O pins
Temperature Range: -40°C ~ 85°C operation

The C8051F206-GQ qualifies as a direct substitute, maintaining identical electrical and mechanical specifications while offering improved product status and RoHS compliance certification.

Parameter Comparison

Parameter	C8051F206	C8051F206-GQ
Manufacturer	Silicon Labs	Silicon Labs
Series	C8051F2xx	C8051F2xx
Core Processor	8051	8051
Core Size	8-Bit	8-Bit
Speed	25MHz	25MHz
Program Memory Size	8KB (8K x 8)	8KB (8K x 8)
Program Memory Type	FLASH	FLASH
RAM Size	1.25K x 8	1.25K x 8
Voltage - Supply (Vcc/Vdd)	2.7V ~ 3.6V	2.7V ~ 3.6V
Data Converters	A/D 32x12b	A/D 32x12b
Connectivity	SPI, UART/USART	SPI, UART/USART
Number of I/O	32	32
Peripherals	Brown-out Detect/Reset, POR, WDT	Brown-out Detect/Reset, POR, WDT
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	48-TQFP (7x7)	48-TQFP (7x7)
Product Status	Obsolete	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
ECCN	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001

Engineering Selection Recommendations

The C8051F206-GQ is the direct equivalent substitute for the C8051F206. Both devices share identical electrical specifications, memory configuration, and package format, ensuring pin-for-pin and functional compatibility.

The primary distinction between these parts lies in product status and compliance certification. The C8051F206-GQ carries ROHS3 compliance, whereas the original C8051F206 is RoHS non-compliant. For applications subject to RoHS regulatory requirements or environmental compliance mandates, the C8051F206-GQ is the appropriate selection.

The C8051F206-GQ is classified as "Not For New Designs," indicating limited availability and potential supply constraints. For new development projects, evaluation of alternative microcontroller architectures from current product lines is recommended to ensure long-term supply security and access to contemporary design support resources.

Frequently Asked Questions (FAQ)

Q: Can the C8051F206-GQ be used as a direct replacement for the C8051F206?

A: Yes. The C8051F206-GQ is electrically and mechanically identical to the C8051F206. Both devices feature the same 8051 core processor, 25MHz operating frequency, 8KB FLASH memory, 1.25KB RAM, 32 I/O pins, and 48-TQFP package format. No circuit modifications are required for substitution.

Q: What is the difference between the C8051F206 and C8051F206-GQ?

A: The primary differences are product status and RoHS compliance. The C8051F206 is Obsolete and RoHS non-compliant, while the C8051F206-GQ is classified as "Not For New Designs" and carries ROHS3 compliance certification. All functional and electrical parameters are identical.

Q: Are there packaging differences between these parts?

A: No. Both the C8051F206 and C8051F206-GQ are supplied in 48-TQFP (7x7) surface mount packages with identical pin configurations and mechanical dimensions. The C8051F206-GQ is available in Tray packaging, while the C8051F206 packaging format is not specified in the provided data.

Q: What does "Not For New Designs" mean for the C8051F206-GQ?

A: This classification indicates the device is in mature or declining production status. While functionally suitable for existing applications, Silicon Labs does not recommend this part for new product development. Supply availability may be limited, and design support resources may be restricted.

Q: Is the C8051F206-GQ suitable for applications requiring RoHS compliance?

A: Yes. The C8051F206-GQ carries ROHS3 compliance certification, making it suitable for applications subject to RoHS regulatory requirements. The original C8051F206 is RoHS non-compliant and should not be used in RoHS-mandated applications.

Q: What is the Moisture Sensitivity Level (MSL) for these devices?

A: Both the C8051F206 and C8051F206-GQ have an MSL rating of 3 (168 Hours). This indicates the devices must be stored in controlled humidity conditions and have a floor life of 168 hours after exposure to ambient conditions before soldering.

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