C8051F342 查看數據表（PDF） - Silicon Laboratories

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C8051F342

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D

Table 14.1. Oscillator Electrical Characteristics

VDD = 2.7 to 3.6 V; –40 to +85 °C unless otherwise specified

Parameter

Conditions

Min Typ

Internal High-Frequency Oscillator (Using Factory-Calibrated Settings)

Oscillator Frequency

Oscillator Supply Current 

(from VDD)

IFCN = 11b

24 ºC, VDD = 3.0 V,

OSCICN.7 = 1

11.82 12.00

— 685

Internal Low-Frequency Oscillator (Using Factory-Calibrated Settings)

Oscillator Frequency

Oscillator Supply Current 

(from VDD)

OSCLD = 11b

24 ºC, VDD = 3.0 V,

OSCLCN.7 = 1

72 80

— 7.0

External USB Clock Requirements

USB Clock Frequency*

Full Speed Mode

Low Speed Mode

47.88 48

5.91 6

*Note: Applies only to external oscillator sources.

Max

12.18

—

99

—

48.12

6.09

Units

MHz

µA

kHz

µA

MHz

Rev. 1.3

141

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