參數(shù)資料
型號(hào)： MB91F249PFV-GSE1
廠商： FUJITSU LTD
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PQFP144
封裝： 20 X 20 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁(yè)數(shù)： 57/84頁(yè)
文件大小： 2105K
代理商： MB91F249PFV-GSE1
MB91245/S Series
60
DS07-16803-3E
5.
AC Specifications
(1) Clock timing
(TA : Recommended operating conditions; Vcc
= 5.0 V ±10%, VSS = DVSS = AVSS = 0.0 V)
Parameter
Sym-
bol
Pin
name
Con-
dition
Value
Unit
Remarks
Min
Typ
Max
Frequency of source
oscillation clock
FC
X0, X1
4
MHz
Fca
X0A, X1A
32
kHz
Source oscillation clock
Cycle time
tCYL
X0, X1
250
ns
Input clock pulse width
PWH ,
PWL
X0
100
ns
The duty ratio normally
ranges from 40% to
60%.
Frequency of internal
operating clock
fCPB
0.0312
32
MHz CPU based (CLKB)
fCPT
0.0312
16
MHz
External bus based
(CLKT)
fCPP
0.0312
32
MHz
Peripheral based
(CLKP)
Internal operating clock
cycle
tCPB
31.25
32000
ns
CPU based (CLKB)
tCPT
62.5
32000
ns
External bus based
(CLKT)
tCPP
31.25
32000
ns
Peripheral based
(CLKP)
Input clock
Rise/fall time
tcr
tcf
X0
5ns
When external clock is
used
Frequency of internal
base clock
FCP
32
MHz
When main oscillation
is at 4 MHz and PLL
multiplied by 8 is used
Internal base clock
Cycle time
tCP
31.25
ns
When main oscillation
is at 4 MHz and PLL
multiplied by 8 is used
0.2 VCC
tcr
tcf
tCYL
X0
PWH
PWL
0.8 VCC
X0/X1 Clock Timing
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