C8051F321 vs C8051F561-IM

This in-depth comparison of the C8051F321 and C8051F561-IM 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

C8051F321

Silicon Labs

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

C8051F561-IM

Silicon Labs

Lifecycle
Active
Stock
4553 PCS
Package
VFQFN-32
Series
Embedded - Microcontrollers
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification C8051F321 C8051F561-IM
Supplier - Silicon Labs
Series C8051F32x C8051F56x
Part Status Obsolete Active
Core Processor 8051 8051
Core Size 8-Bit 8-Bit
Speed 25MHz 50MHz
Connectivity SMBus (2-Wire/I²C), SPI, UART/USART, USB SMBus (2-Wire/I²C), CANbus, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT POR, PWM, Temp Sensor, WDT
Number of I/O 21 25
Program Memory Size 16KB (16K x 8) 32KB (32K x 8)
Program Memory Type FLASH FLASH
RAM Size 2.25K x 8 2.25K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 3.6V 1.8V ~ 5.25V
Data Converters A/D 13x10b A/D 25x12b
Oscillator Type Internal Internal
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount
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