參數(shù)資料
型號: MB90F523PFF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP120
封裝: PLASTIC, LQFP-120
文件頁數(shù): 93/106頁
文件大?。?/td> 1541K
代理商: MB90F523PFF
MB90520 Series
87
(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 Condition
Value
Unit
Remarks
Min.
Typ.
Max.
Clock frequency
FC
X0, X1
3
16
MHz
FC
X0, X1
4.0 V to
4.5 V
3
10
MHz MB90F523
FCL
X0A, X1A
32.768
kHz
Clock cycle time
tHCYL
X0, X1
62.5
333
ns
tHCYL
X0, X1
4.0 V to
4.5 V
100
333
ns
MB90F523
tLCYL
X0A, X1A
30.5
s
Input clock pulse width
PWH,
PWL
X0
10
ns
Recommended
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
frequency
fCP
1.5
16
MHz
When the main
clock is used
fCP
4.0 V to
4.5 V
1.5
10
MHz
When the main
clock is used
fLCP
——
8.192
kHz
When the
subclock is
used
Internal operating clock cycle
time
tCP
62.5
333
ns
When the main
clock is used
tCP
4.0 V to
4.5 V
100
333
ns
When the main
clock is used
tLCP
122.1
s
When the
subclock is
used
Frequency fluctuation rate
locked
f—
5
%
*
|
α |
fO
Center frequency
+
+
α
fO
α
f =
× 100 (%)
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