參數(shù)資料
型號(hào): MB90487PF
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁(yè)數(shù): 104/113頁(yè)
文件大?。?/td> 1195K
代理商: MB90487PF
MB90480/485 Series
90
(5) Bus Read Timing
(VCC
= 2.7 V to 3.6 V, VSS = 0.0 V, TA = 0 °C to +70 °C)
* : tCP : See “ (1) Clock Timing Standards”.
Parameter
Symbol
Pin name
Conditions
Value
Unit
Remarks
Min
Max
ALE pulse width
tLHLL
ALE
tCP*
/ 2 15
ns
at fcp
= 25 MHz
tCP*
/ 2 20
ns
at fcp
= 16 MHz
tCP*
/ 2 35
ns
at fcp
= 8 MHz
Valid address
ALE
↓time
tAVLL
Address,
ALE
tCP*
/ 2 17
ns
tCP*
/ 2 40
ns
at fcp
= 8 MHz
ALE
↓→
address valid time
tLLAX
ALE,
Address
tCP*
/ 2 15
ns
Valid address
RD
↓time
tAVRL
RD,
address
tCP*
25
ns
Valid address
valid data input
tAVDV
Address,
Data
5 tCP*
/ 2 55
ns
5 tCP*
/ 2 80
ns
at fcp
= 8 MHz
RD pulse width
tRLRH
RD
3 tCP*
/ 2 25
ns
at fcp
= 25 MHz
3 tCP*
/ 2 20
ns
at fcp
= 16 MHz
RD
↓→
valid data input
tRLDV
RD,
Data
3 tCP*
/ 2 55
ns
3 tCP*
/ 2 80
ns
at fcp
= 8 MHz
RD
↑→data hold time
tRHDX
RD,
Data
0
ns
RD
↑→ALE↑rise time
tRHLH
RD, ALE
tCP*
/ 2 15
ns
RD
↑→
address valid time
tRHAX
Address,
RD
tCP*
/ 2 10
ns
Valid address
CLK
↑time
tAVCH
Address,
CLK
tCP*
/ 2 17
ns
RD
↓→CLK↑time
tRLCH
RD, CLK
tCP*
/ 2 17
ns
ALE
↓→RD↓time
tLLRL
RD, ALE
tCP*
/ 2 15
ns
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