C8051F062 Equivalent & Substitute Parts

Part Overview

The C8051F062 is an 8-bit microcontroller from Silicon Labs' C8051F06x series, featuring a 25MHz 8051 core with 64KB Flash program memory and integrated peripherals including CANbus, I2C, SPI, and UART connectivity. The device is classified as Obsolete, making equivalent and substitute parts necessary for ongoing system support, maintenance, and component sourcing in production environments.

Key Parameters

Parameter	Value
Core Processor	8051
Core Size	8-Bit
Speed	25MHz
Program Memory Size	64KB (64K x 8)
Program Memory Type	FLASH
RAM Size	4.25K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 3.6V
Number of I/O	59
Connectivity	CANbus, EBI/EMI, SMBus (2-Wire/I2C), SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Data Converters	A/D 2x16b, 8x10b; D/A 2x12b
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	100-TQFP (14x14)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the C8051F062 is determined by strict equivalence across the following critical parameters:

Core Architecture: 8051 processor core
Memory Configuration: 64KB Flash program memory, 4.25K x 8 RAM
Clock Speed: 25MHz operation
Voltage Range: 2.7V to 3.6V supply compatibility
I/O Count: 59 I/O pins
Connectivity Interfaces: CANbus, I2C/SMBus, SPI, UART/USART, EBI/EMI
Peripheral Set: Brown-out detection, POR, PWM, temperature sensor, watchdog timer
Data Conversion: A/D converters (2x16-bit, 8x10-bit), D/A converters (2x12-bit)
Package: 100-TQFP (14x14mm) surface mount

The C8051F062-GQ variant meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Parameter	C8051F062	C8051F062-GQ
Manufacturer	Silicon Labs	Silicon Labs
Series	C8051F06x	C8051F06x
Core Processor	8051	8051
Core Size	8-Bit	8-Bit
Speed	25MHz	25MHz
Program Memory Size	64KB (64K x 8)	64KB (64K x 8)
Program Memory Type	FLASH	FLASH
RAM Size	4.25K x 8	4.25K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 3.6V	2.7V ~ 3.6V
Number of I/O	59	59
Connectivity	CANbus, EBI/EMI, SMBus (2-Wire/I2C), SPI, UART/USART	CANbus, EBI/EMI, SMBus (2-Wire/I2C), SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT	Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Data Converters	A/D 2x16b, 8x10b; D/A 2x12b	A/D 2x16b, 8x10b; D/A 2x12b
Oscillator Type	Internal	Internal
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	100-TQFP (14x14)	100-TQFP (14x14)
Mounting Type	Surface Mount	Surface Mount
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
ECCN	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001
Product Status	Obsolete	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	Not specified	REACH Unaffected
Packaging	Not specified	Tray

Engineering Selection Recommendations

The C8051F062-GQ is a direct functional equivalent to the C8051F062 across all electrical and mechanical parameters. Selection between these parts should be based on the following factors:

Product Status: The C8051F062 is classified as Obsolete, while the C8051F062-GQ is classified as Not For New Designs. For legacy system maintenance and repair, either part is functionally suitable. For new production designs, neither part is recommended.

Compliance: The C8051F062-GQ offers improved regulatory compliance with ROHS3 certification and REACH Unaffected status, compared to the C8051F062 which is RoHS non-compliant. For applications requiring regulatory compliance, the C8051F062-GQ is the preferred choice.

Packaging and Availability: The C8051F062-GQ is supplied in Tray packaging with higher inventory availability (2100 Pcs vs. 789 Pcs), supporting higher-volume production requirements.

Programmability Verification: The C8051F062-GQ has verified programmability status, while the C8051F062 is not verified. This distinction may be relevant for in-house programming and verification workflows.

Frequently Asked Questions (FAQ)

Q: Can the C8051F062-GQ replace the C8051F062 in existing designs?

A: Yes. The C8051F062-GQ is electrically and mechanically equivalent to the C8051F062. All pin assignments, voltage ratings, memory configurations, clock speeds, and peripheral functions are identical. Direct substitution is supported without design modifications.

Q: What is the difference between C8051F062 and C8051F062-GQ?

A: The primary differences are packaging format (Tray for -GQ variant), regulatory compliance status (ROHS3 for -GQ), and product lifecycle status. Functionally and electrically, both parts are identical.

Q: Are there any package compatibility concerns?

A: No. Both parts use the 100-TQFP (14x14mm) surface mount package with identical pin configurations and mechanical dimensions. PCB layouts and footprints are fully compatible.

Q: Which part should be selected for new production?

A: Neither the C8051F062 nor the C8051F062-GQ is recommended for new designs, as both are classified as Obsolete or Not For New Designs. For new production, consult Silicon Labs for current-generation 8051-based microcontroller alternatives.

Q: Does the C8051F062-GQ meet RoHS requirements?

A: Yes. The C8051F062-GQ is ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards. The original C8051F062 is RoHS non-compliant.

Q: Are there inventory or lead time differences?

A: The C8051F062-GQ has higher inventory availability (2100 Pcs) compared to the C8051F062 (789 Pcs), potentially offering better lead time performance for component sourcing.

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