ST7FMC1K2B3 STMICROELECTRONICS [STMicroelectronics], ST7FMC1K2B3 Datasheet - Page 257

• Manufacturer Part Number: ST7FMC1K2B3
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

CLOCK AND TIMING CHARACTERISTICS (Cont’d)
12.5.3 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
Figure 136. Typical Application with a Crystal or Ceramic Resonator
Notes:
1. When PLL is used, please refer to the PLL characteristics chapter and to the “supply, reset and clock management”
description chapter (f
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 (ý =180mm), -B0: Bulk]
f
R
C
C
OSC
Symbol
F
L1
L2
LEAD = [-A0: Flat pack package (Radial taping Ho= 18mm), -B0: Bulk]
Supplier
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
Oscillator Frequency
Feedback resistor
Recommended load capacitance ver-
sus equivalent serial resistance of the
crystal or ceramic resonator (R
(MHz)
f
OSC
16
OSC
4
8
C
L2
min. is 8 Mhz with PLL).
Parameter
C
L1
1)
Typical Ceramic Resonators
RESONATOR
CSTCR4M00G53-R0
CSTCE8M00G52-R0
CSTCE16M0V53-R0
S
)
Reference
OSC1
OSC2
3)
Conditions
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...).
R
F
2)
i
2
Min
4
See table below
CL1
[pF]
(15)
(10)
(15)
ST7MC1xx/ST7MC2xx
Typ
92
ST7FMC
f
OSC
Max
16
CL2
[pF]
(15)
(10)
(15)
257/309
MHz
Unit
kΩ
pF