C8051F331-GMR vs C8051F321

This in-depth comparison of the C8051F331-GMR and C8051F321 provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

C8051F331-GMR

Silicon Labs

Lifecycle
Active
Stock
5310 PCS
Package
QFN-20
Series
Embedded - Microcontrollers
+BOM RFQ
Part B

C8051F321

Silicon Labs

Lifecycle
Active
Stock
3352 PCS
Package
VFQFN-28
Series
Embedded - Microcontrollers
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification C8051F331-GMR C8051F321
Series C8051F33x C8051F32x
Part Status Not For New Designs Obsolete
Core Processor 8051 8051
Core Size 8-Bit 8-Bit
Speed 25MHz 25MHz
Connectivity SMBus (2-Wire/I²C), SPI, UART/USART SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number of I/O 17 21
Program Memory Size 8KB (8K x 8) 16KB (16K x 8)
Program Memory Type FLASH FLASH
RAM Size 768 x 8 2.25K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 3.6V 2.7V ~ 3.6V
Data Converters - A/D 13x10b
Oscillator Type Internal Internal
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
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