参数资料
型号: ST40RA150XH6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PBGA372
封装: 27 X 27 MM, BGA-372
文件页数: 49/90页
文件大小: 672K
代理商: ST40RA150XH6
6 Electrical specifications
ST40RA166
53/88
6.9
System CLKIN AC specifications
The timings referenced in
Figure 16 refer to the case where CLKIN is directly clocked from an
external source. In this case care should be taken that the total load on the CLOCKOSC output is
<2pF.
Symbol
Parameter
Min
Nom
Max
Units
Notes
tCLCH
CLKIN
pulse width low
6
ns
tCHCL
CLKIN
pulse width high
6
ns
tCLCL
CLKIN
period
27
MHz
a
a. Measured between corresponding points on consecutive falling edges.
tCr
CLKIN
rise time
10
ns
b, c
b. When driven by an external clock.
c. Clock transitions must be monotonic within the range VIH to VIL.
tCf
CLKIN
fall time
10
ns
2, 3
Table 29: CLKIN timings
Figure 16: CLKIN timings
VDDCORE * 0.8
VDDCORE * 0.5
VDDCORE * 0.2
tCLCH
tCHCL
tCLCL
90%
10%
tCf
90%
10%
tCr
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