ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 199

• Manufacturer Part Number: ST7FOXK1
• Description: Low cost flash 8bit micro
• Manufacturer: STMicroelectronics

Specifications of ST7FOXK1

• 4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 1K write/erase cycles guaranteed Data retention
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
• A/d Converter: up to 10 input channels

ST7FOXF1, ST7FOXK1, ST7FOXK2
12.6.2
Crystal and ceramic resonator oscillators
The ST7 internal clock can be supplied with ten 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 resonator 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 stabilization time. Refer to the crystal/ceramic resonator
manufacturer for more details (frequency, package, accuracy...).
Table 80.
Figure 87. Typical application with a crystal or ceramic resonator
Symbol
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
f
CrOSC
C
C
L1
L2
Recommended load capacitance
Crystal/ceramic resonator oscillator characteristics
Crystal oscillator frequency
resistance of the crystal or
versus equivalent serial
ceramic resonator (R
C
L2
Parameter
C
L1
RESONATOR
R
S
d
)
OSC1
OSC2
Conditions
i
Electrical characteristics
2
Min Typ Max Unit
2
TBD
ST7FOX
f
OSC
16
199/226
MHz
pF