參數(shù)資料
型號(hào): MB91F775RPMC-ESE1
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, PLASTIC, LQFP-144
文件頁(yè)數(shù): 10/120頁(yè)
文件大?。?/td> 4532K
代理商: MB91F775RPMC-ESE1
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MB91770 Series
DS07-16913-1E
107
(14) External bus I/F (Asynchronous mode) timing
(TA : Recommended operating conditions, VCC
= AVCC = 5.0 V±10%,VSS = AVSS = 0.0 V)
(VCC
= 4.5 V to 5.5 V, VSS = AVSS = 0 V f = 16 MHz) (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
Value
Unit
Remarks
Min
Max
Cycle time
tCYC
SYSCLK
31.25
ns
Address setup
→ RDX ↑ time
tASRH
RDX
A00 to A21
2
× tCYC - 12 2 × tCYC + 12
ns
RWT=1,
set RWT to 1 or more.*
RDX
↑→
Address hold
tRHAH
tCYC - 12
tCYC
+ 12
ns
Set RDCS to 1 or more.
Data setup
→ RDX ↑ time
tDSRH
RDX
D16 to D31
18
+ tCYC
ns
RWT=1,
set RWT to 1 or more.
RDX
↑ →
Data hold
tRHDH
0
ns
Address setup
→ WRnX ↑ time
tASWH
WR0X to WR1X
A00 to A21
tCYC - 12
tCYC
+ 12
ns
WWT
= 0*
WRnX
↑ →
Address hold
tWHAH
tCYC - 12
tCYC
+ 12
ns
Set WRCS to 1 or more.
Data setup
WRnX
↑ time
tDSWH
WR0X to WR1X
D16 to D31
tCYC - 16
tCYC
+ 16
ns
WWT
= 0*
WRnX
↑ →
Data hold
tWHDH
tCYC - 16
tCYC
+ 16
ns
Set WRCS to 1 or more.
Address setup
→ ASX ↑ time
tMASASH
ASX
D16 to D31
tCYC - 16
tCYC
+ 16
ns
ASCY
= 0
ASX
↑ →
Address hold
tMASHAH
tCYC - 16
tCYC
+ 16
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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