參數(shù)資料
型號(hào): MB90F574/APFF
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, MICROCONTROLLER, PQFP120
封裝: PLASTIC, LQFP-120
文件頁數(shù): 106/120頁
文件大?。?/td> 1834K
代理商: MB90F574/APFF
MB90570 Series
86
(3) Clock Timings
(AVCC = VCC = 5.0 V
±10%, AVSS = VSS = 0.0 V, TA = –40°C to +85°C)
* : The frequency fluctuation rate is the maximum deviation rate of the preset center frequency when the multiplied
PLL signal is locked.
The PLL frequency deviation changes periodically from the preset frequency “(about CLK
× (1CYC to 50 CYC)”,
thus minimizing the chance of worst values to be repeated (errors are minimal and negligible for pulses with
long intervals).
Parameter
Symbol
Pin name
Condi-
tion
Value
Unit
Remarks
Min
Typ
Max
Clock frequency
FC
X0, X1
3—
16
MHz
FCL
X0A, X1A
32.768
kHz
Clock cycle time
tHCYL
X0, X1
62.5
333
ns
tLCYL
X0A, X1A
30.5
s
Input clock pulse width
PWH,
PWL
X0
10
ns
Recommend
duty ratio of
30% to 70%
PWLH,
PWLL
X0A
15.2
s
Input clock rising/falling time
tCR,
tCF
X0, X0A
5
ns
External clock
operation
Internal operating clock fre-
quency
fCP
—1.5
16
MHz
Main clock op-
eration
fLCP
8.192
kHz
Subclock oper-
ation
Internal operating clock cycle
time
tCP
62.5
333
ns
External clock
operation
tLCP
122.1
s
Subclock oper-
ation
Frequency fluctuation rate
locked
f—
5
%
*
|
α |
fO
+
+
α
fO
α
f =
× 100 (%) Center frequency
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