ST62E10LT6/CCC View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST62E10LT6/CCC
STMicroelectronics
ST62E10LT6/CCC Datasheet PDF : 104 Pages
| |||
ST6208C/ST6209C/ST6210C/ST6220C
CLOCK AND TIMING CHARACTERISTICS (Cont’d)
10.5.3 Crystal and Ceramic Resonator Oscillators
The ST6 internal clock can be supplied with sever-
al different Crystal/Ceramic resonator oscillators.
Only parallel resonant crystals can be used. All the
information given in this paragraph are based on
characterization results with specified typical ex-
ternal components. Refer to the crystal/ceramic
resonator manufacturer for more details (frequen-
cy, package, accuracy...).
Symbol
RF
CL1
CL2
Parameter
Conditions
Feedback resistor
fOSC=32 kHz,
Recommended load capacitances versus equiva-
lent crystal or ceramic resonator frequency
fOSC=1 MHz
fOSC=2 MHz
fOSC=4 MHz
fOSC=8 MHz
Typ
Unit
3
MΩ
120
47
33
pF
33
22
Oscillator
Reference
Typical Crystal or Ceramic Resonators
Freq.
Characteristic 1)
CSB455E
455KHz ∆fOSC=[±0.5KHztolerance,±0.3%∆Ta,±0.5%aging]
CSB1000J
1MHz ∆fOSC=[±0.5KHztolerance,±0.3%∆Ta,±0.5%aging]
CSTCC2.00MG0H6 2MHz ∆fOSC=[±0.5%tolerance,±0.5%∆Ta,±0.3%aging]
CSTCC4.00MG0H6 4MHz ∆fOSC=[±0.5%tolerance,±0.3%∆Ta,±0.3%aging]
CSTCC8.00MG
8MHz ∆fOSC=[±0.5%tolerance,±0.3%∆Ta,±0.3%aging]
CL1 CL2 tSU(osc)
[pF] [pF] [ms] 1)
220 220
100 100
47 47
47 47
15 15
Notes:
1. Resonator characteristics given by the crystal/ceramic resonator manufacturer.
2. tSU(OSC) is the typical oscillator start-up time measured between VDD=2.8V and the fetch of the first instruction (with a
quick VDD ramp-up from 0 to 5V (<50µs).
3. The oscillator selection can be optimized in terms of supply current using an high quality resonator with small RS value.
Refer to crystal/ceramic resonator manufacturer for more details.
Figure 50. Typical Application with a Crystal or Ceramic Resonator
VDD
CL1
OSCIN
RESONATOR
CL2
RF
OSCOUT
FOSC
ST62XX
73/104
1
Share Link: 