參數(shù)資料
型號(hào): MD83C154XXX-20P883D
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40
封裝: 0.600 INCH, CERAMIC, DIP-40
文件頁數(shù): 126/142頁
文件大?。?/td> 61013K
代理商: MD83C154XXX-20P883D
84
XMEGA B3 [DATASHEET]
8074D–AVR–08/2013
36.14.6 External Clock Characteristics
Figure 36-3. External Clock Drive Waveform
Table 36-25. External clock used as system clock without prescaling.
Note:
1.
The maximum frequency vs. supply voltage is linear between 1.8V and 2.7V, and the same applies for all other parameters with supply voltage conditions.
tCH
tCL
tCK
tCH
VIL1
VIH1
tCR
tCF
Symbol
Parameter
Condition
Min
Typ
Max
Units
1/t
CK
Clock frequency(1)
VCC = 1.6 - 1.8V
0
12
MHz
V
CC = 2.7 - 3.6V
0
32
t
CK
Clock period
V
CC = 1.6 - 1.8V
83.3
ns
VCC = 2.7 - 3.6V
31.5
tCH
Clock high time
V
CC = 1.6 - 1.8V
30.0
ns
V
CC = 2.7 - 3.6V
12.5
t
CL
Clock low time
VCC = 1.6 - 1.8V
30.0
ns
VCC = 2.7 - 3.6V
12.5
tCR
Rise time (for maximum frequency)
V
CC = 1.6 - 1.8V
10
ns
VCC = 2.7 - 3.6V
3
tCF
Fall time (for maximum frequency)
VCC = 1.6 - 1.8V
10
ns
V
CC = 2.7 - 3.6V
3
t
CK
Change in period from one clock cycle to the next
10
%
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