SAK-C868-1SR BA Infineon Technologies, SAK-C868-1SR BA Datasheet - Page 23

• Manufacturer Part Number: SAK-C868-1SR BA
• Description: IC MCU 8BIT 8KB RAM TSSOP-38-1
• Manufacturer: Infineon Technologies
• Series: C5xx/C8xxr

Specifications of SAK-C868-1SR BA

• Core Processor: C800
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: RAM
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 5x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 38-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: SAKC8681SRBAXT; SP000014357

C868
Figure 12
shows the recommended oscillator circuitries for crystal and external clock
operation.
Driving from External Source
Crystal Oscillator Mode
External Oscillator
XTAL2
Signal
XTAL2
6.67-10.67
C868
MHz
N.C.
XTAL1
XTAL1
C = 20 pF
10 pF for crystal operation
(incl. StrayCapacitance)
Figure 12
Recommended Oscillator Circuit
In this application the on-chip oscillator is used as a crystal-controlled, positive-
reactance oscillator (a more detailed schematic is given in
Figure
13). lt is operated in
its fundamental response mode as an inductive reactor in parallel resonance with a
capacitor external to the chip. The crystal specifications and capacitances are non-
critical. In this circuit tbd pF can be used as single capacitance at any frequency together
with a good quality crystal. A ceramic resonator can be used in place of the crystal in
cost-critical applications. If a ceramic resonator is used, the two capacitors normally
have different values depending on the oscillator frequency. We recommend consulting
the manufacturer of the ceramic resonator for value specifications of these capacitors.
Data Sheet
23
V 1.0, 2003-05