参数资料
型号: SAF-C868A-1SGBA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 40 MHz, MICROCONTROLLER, PDSO28
封装: PLASTIC, SO-28
文件页数: 17/82页
文件大小: 1252K
代理商: SAF-C868A-1SGBA
C868
Data Sheet
24
V 1.0, 2003-05
Figure 13
On-Chip Oscillator Circuitry
To drive the C868 with an external clock source, the external clock signal has to be
applied to XTAL2, as shown in Figure 14. XTAL1 has to be left unconnected. A pullup
resistor is suggested (to increase the noise margin), but is optional if V
OH of the driving
gate corresponds to the V
IH2 specification of XTAL2.
Figure 14
External Clock Source
XTAL2
XTAL1
*)
*) Crystal or ceramic resonator
C868
To internal
timing circuitry
C1
C2
VDDC
N.C.
External
Clock
Signal
XTAL1
XTAL2
C868
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