參數(shù)資料
型號(hào)： SAX-XC878M-13FFI5V
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
封裝： PLASTIC, TQFP-64
文件頁數(shù)： 40/141頁
文件大小： 2385K
代理商： SAX-XC878M-13FFI5V
XC878CLM
Electrical Parameters
Data Sheet
129
V1.1, 2009-08
4.3.6
External Clock Drive XTAL1
Table 51 shows the parameters that define the external clock supply for XC878. These
timing parameters are based on the direct XTAL1 drive of clock input signals. They are
not applicable if an external crystal or ceramic resonator is considered.
Figure 42
External Clock Drive XTAL1
Table 51
External Clock Drive Characteristics (Operating Conditions apply)
Parameter
Symbol
Limit Values
Unit
Test Conditions
Min.
Max.
Oscillator period
t
osc
SR 50
500
ns
1)2)
1) The clock input signals with 45-55% duty cycle are used.
2) Not all parameters are 100% tested, but are verified by design/characterization and test correlation.
High time
t
1
SR 15
-
ns
3) The clock input signal must reach the defined levels
V
ILX and VIHX.
Low time
t
2
SR 15
-
ns
Rise time
t
3
SR -
10
ns
Fall time
t
4
SR -
10
ns
t
1
t
2
t
3
t
4
t
OSC
0.5 V
DDC
V
IHX
V
ILX
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