參數(shù)資料
型號: MB89P955PFM
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 5 MHz, MICROCONTROLLER, PQFP64
封裝: 0.65 MM PITCH, QFP-64
文件頁數(shù): 22/40頁
文件大小: 600K
代理商: MB89P955PFM
MB89950 Series
29
(3) Clock Timing
(VSS = 0.0 V, TA = –40
°C to +85°C)
* : duty = PWH/tHCYL
(4) Instruction Cycle
(VSS = 0.0 V, TA = –40
°C to +85°C)
Parameter
Symbol
Pin name
Value
Unit
Remarks
Min.
Typ.
Max.
Clock frequency
FC
X0, X1
1
5
MHz
Clock cycle time
tHCYL
X0, X1
400
2000
ns
Input clock duty ratio*
duty
X0
30
70
%
crystal & ceramic
Input clock rising/falling
time
tCR
tCF
X0
10
ns
Applied when external
clock used
Parameter
Symbol
Value
Unit
Remarks
Instruction cycle
(Minimum instruction
executing time)
tinst
4/FC to 64/FC
s
tinst = 0.8
s when operating at
FC = 5 MHz
Timing Conditions
tCF
tCR
X0
0.8 VCC
0.2 VCC
PWH
When crystal
or
ceramic resonator is used
Open
When external clock is used
X0
X1
X0
X1
FC
fCH
C0
C1
0.8 VCC
0.2 VCC
tHCYL
PWL
Clock Configurations
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