參數(shù)資料
型號: MB91F725RPMC-GSE1
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: RISC MICROCONTROLLER, PQFP144
封裝: 20 X 20 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-144
文件頁數(shù): 8/120頁
文件大?。?/td> 4549K
代理商: MB91F725RPMC-GSE1
MB91725 Series
DS07-16914-1E
105
(11) External bus I/F (synchronous mode) timing (target value)
(TA : Recommended operating conditions, VCC
= AVCC = 5.0 V±10%, VSS = AVSS = 0.0 V)
(external load capacitance 50 pF)
* : If the bus is expanded by automatic wait insertion or RDY input, add time (tcyc
× the number of expanded cycles)
to the rated value.
Parameter
Symbol
Pin name
Condi-
tions
Value
Unit
Remarks
Min
Max
Cycle time
tCYC
SYSCLK
31.25
ns
ASX delay time
tCHASL
tCHASH
SYSCLK
ASX
0.5
18
ns
CS0X to CS3X
delay time
tCHCSL
tCHCSH
SYSCLK
CS0X to
CS3X
0.5
18
ns
A00 to A21
delay time
tCHAV
tCHAX
SYSCLK
A00 to A21
0.5
18
ns
RDX delay time
tCHRL
tCHRH
SYSCLK
RDX
0.5
18
ns
RDX
minimum pulse
tRLRH
RDX
tCYC
× 2
20
ns
RWT=1,
set RWT to 1 or more.*
data setup
→ RDX ↑ time
tDSRH
RDX
D16 to D31
18
+ tCYC
ns
Same as above
RDX
↑ →
data hold
tRHDH
0
ns
WRnX delay time
tCHWL
tCHWH
SYSCLK
WR0X,
WR1X
0.5
18
ns
WRnX minimum
pulse width
tWLWH
WR0X,
WR1X
tCYC
10
ns
WWT
= 0*
SYSCLK
↑ →
data output time
tCHDV
SYSCLK
D16 to D31
0.5
18
ns
SYSCLK
↑ →
data hold time
tCHDX
18
ns
Set WRCS to 1 or more.
SYSCLK
↑ →
address output
time
tCHMAV
SYSCLK
D16 to D31
0.5
18
ns
SYSCLK
↑ →
Address hold
time
tCHMAX
18
ns
In multiplex mode, set as follows:
Set CSWR and CSRD to
2 or more.
ASCY must satisfy the
following conditions
because of setting
ADCY>ASCY and protocol
violation prevention.
ADCY
+ 1 ≤ ACS + CSRD
ADCY
+ 1 ≤ ACS + CSWR
ASCY
+ 1 ≤ ACS + CSRD
ASCY
+ 1 ≤ ACS + CSWR
Refer to Hardware Manual for
details.
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