参数资料
型号: SAX-XC878LM-13FFA5V
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
封装: GREEN, PLASTIC, LQFP-64
文件页数: 130/145页
文件大小: 2156K
代理商: SAX-XC878LM-13FFA5V
XC87xCLM
Functional Description
Data Sheet
78
V1.5, 2011-03
resistance method. Oscillation measurement with the final target system is strongly
recommended to verify the input amplitude at XTAL1 and to determine the actual
oscillation allowance (margin negative resistance) for the oscillator-crystal system.
When using an external clock signal, the signal must be connected to XTAL1. XTAL2 is
left open (unconnected).
The oscillator can also be used in combination with a ceramic resonator. The final
circuitry must also be verified by the resonator vendor. Figure 21 shows the
recommended external oscillator circuitries for both operating modes, external crystal
mode and external input clock mode.
Figure 21
External Oscillator Circuitry
Note: For crystal operation, it is strongly recommended to measure the negative
resistance in the final target system (layout) to determine the optimum parameters
for the oscillator operation. Please refer to the minimum and maximum values of
the negative resistance specified by the crystal supplier.
XC87x
Oscillator
VSS
C
X1
2 - 20
MHz
C
X2
XTAL1
XTAL2
XC87x
Oscillator
XTAL1
XTAL2
External Clock
Signal
f
OSC
f
OSC
Fundamental
Mode Crystal
RX2
RQ
VSS
Rf
相关PDF资料
PDF描述
SAF-XC878-13FFI5V 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
SAF-XC878CLM-16FFA5V 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
SB80960HD-33 32-BIT, 66 MHz, RISC PROCESSOR, PQFP208
SB80960HA-40 32-BIT, 40 MHz, RISC PROCESSOR, PQFP208
SB80960HA-25 32-BIT, 25 MHz, RISC PROCESSOR, PQFP208
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