參數(shù)資料
型號: MB90474PFV
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數(shù): 112/118頁
文件大小: 1199K
代理商: MB90474PFV
MB90470 Series
93
(5) Bus read 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
ALE pulse width
tLHLL
ALE
tCP
/ 2 15
ns
at fcp
= 20 MHz
tCP
/ 2 20
ns
at fcp
= 16 MHz
tCP
/ 2 35
ns
at fcp
= 8 MHz
Valid address
ALE
↓ time
tAVLL
Address pins,
ALE
tCP
/ 2 20
ns
tCP
/ 2 40
ns
at fcp
= 8 MHz
ALE
↓ →
address valid time
tLLAX
ALE,
Address pins
tCP
/ 2 15
ns
Valid address
RD
↓ time
tAVRL
RD,
address
tCP
20
ns
Valid address
valid data input
tAVDV
Address/data
5 tCP
/ 2 60
ns
5 tCP
/ 2 80
ns
at fcp
= 8 MHz
RD pulse width
tRLRH
RD
3 tCP
/ 2 25
ns
at fcp
= 20 MHz
3 tCP
/ 2 20
ns
at fcp
= 16 MHz
RD
↓ →
valid data input
tRLDV
RD,
Data
3 tCP
/ 2 60
ns
3 tCP
/ 2 80
ns
at fcp
= 8 MHz
RD
↑ →
data hold time
tRHDX
RD,
Data
0
ns
RD
↑ → ALE ↑ 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 20
ns
RD
↓ → CLK ↑ time
tRLCH
RD, CLK
tCP
/ 2 20
ns
ALE
↓ → RD ↓ time
tLLRL
RD, ALE
tCP
/ 2 15
ns
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