C8051F380 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F380

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F380/1/2/3/4/5/6/7/C

2.1. Hardware Incompatibilities

While the C8051F38x family includes a number of new features not found on the C8051F34x family, there

are some differences that should be considered for any design port.

 Clock Multiplier: The C8051F38x does not include the 4x clock multiplier from the C8051F34x device

families. This change only impacts systems which use the clock multiplier in conjunction with an

external oscillator source.

 External Oscillator C and RC Modes: The C and RC modes of the oscillator have a divide-by-2 stage

on the C8051F38x to aid in noise immunity. This was not present on the C8051F34x device family, and

any clock generated with C or RC mode will change accordingly.

 Fab Technology: The C8051F38x is manufactured using a different technology process than the

C8051F34x. As a result, many of the electrical performance parameters will have subtle differences.

These differences should not affect most systems but it is nonetheless important to review the electrical

parameters for any blocks that are used in the design, and ensure they are compatible with the existing

hardware.

Rev. 1.4

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