ST7LITE3XF2 datasheet(144/173 Pages) STMICROELECTRONICS

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ST7LITE3xF2

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13.5.3 Crystal and Ceramic Resonator Oscillators

The ST7 internal clock can be supplied with four

different Crystal/Ceramic resonator oscillators. All

the information given in this paragraph are based

on characterization results with specified typical

external components. In the application, the reso-

nator and the load capacitors have to be placed as

close as possible to the oscillator pins in order to

minimize output distortion and start-up stabiliza-

tion time. Refer to the crystal/ceramic resonator

manufacturer for more details (frequency, pack-

age, accuracy...).

1. When PLL is used, please refer to the PLL characteristics chapter and to “SUPPLY, RESET AND CLOCK MANAGE-

MENT” on page 23 (fCrOSC min. is 8 MHz with PLL).

2. Resonator characteristics given by the ceramic resonator manufacturer. For more information on these resonators,

please consult www.murata.com

3. SMD = [-R0: Plastic tape package (∅ = 180mm), -B0: Bulk]

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fCrOSC

Crystal Oscillator Frequency1)

216

MHz

CL1

CL2

Recommended load capacitance ver-

sus equivalent serial resistance of the

crystal or ceramic resonator (RS)

See table below

Supplier

fCrOSC

(MHz)

Typical Ceramic Resonators2)

CL1

[pF]

CL2

[pF]

Supply Voltage

Range (V)

Reference3)

Oscillator Modes

CSTCC2M00G56-R0

LP or MP

(47)

3.0V to 5.5V

CSTCR4M00G55-R0

MP or MS

(39)

CSTCE8M00G55-R0

MS or HS

(33)

CSTCE16M0V53-R0

(15)

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