參數(shù)資料
型號: MB90478PFV
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數(shù): 114/118頁
文件大小: 1199K
代理商: MB90478PFV
MB90470 Series
95
(6) Bus Write Timing
(VCC
= 2.7 V to 3.6 V, VSS = 0.0 V, TA = 40 °C to +85 °C)
Notes :
tCP : See (1) Clock Timing Ratings.
VCC = VCC3 = VCC5
Parameter
Sym-
bol
Pin name
Condi-
tions
Value
Unit
Remarks
Min
Max
Valid address
→ WR ↓ time tAVWL
Address pins,
WR
tCP
20
ns
WR pulse width
tWLWH
WRL, WRH
3 tCP
/ 2 25
ns
at fcp
= 20 MHz
3 tCP
/ 2 20
ns
at fcp
= 16 MHz
Valid data output
→ WR ↑
time
tDVWH
Data pins,
WR
3 tCP
/ 2 20
ns
WR
↑ → data hold time
tWHDX
WR,
Data pins
15
ns
at fcp
= 20 MHz
20
ns
at fcp
= 16 MHz
30
ns
at fcp
= 8 MHz
WR
↑ → address valid time tWHAX
WR,
Address pins
tCP
/ 2 10
ns
WR
↑ → ALE ↑ time
tWHLH
WR , ALE
tCP
/ 2 15
ns
WR
↓ → CLK ↑ time
tWLCH
WR , CLK
tCP
/ 2 20
ns
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