參數(shù)資料
型號(hào): MSM66Q579L-TB
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類(lèi): 微控制器/微處理器
英文描述: 16-BIT, FLASH, 28 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, TQFP-100
文件頁(yè)數(shù): 9/37頁(yè)
文件大小: 327K
代理商: MSM66Q579L-TB
PEDL66579-03
1Semiconductor
MSM66579 Family
17/37
(2) Multiplexed bus type
External program memory control
(V
DD = 4.5 to 5.5 V, Ta = –30 to +70°C)
Parameter
Symbol
Condition
Min.
Max.
Unit
Cycle time
t
cyc
f
OSC = 30 MHz
33.3
Clock pulse width (HIGH level)
tφWH
13
Clock pulse width (LOW level)
tφWL
13
ALE pulse width
T
AW
2 t
φ – 10
PSEN pulse width
t
PW
2 t
φ – 14
PSEN pulse delay time
t
PAD
t
φ – 10
t
φ + 10
Low address setup time
t
ALS
2t
φ – 20
2t
φ + 3
Low address hold time
t
ALH
t
φ – 10
t
φ + 10
High address setup time
t
AHS
3t
φ – 30
4t
φ + 3
High address hold time
t
AHH
0t
φ + 10
Instruction setup time
t
IS
24
Instruction hold time
t
IH
C
L = 50 pF
0t
φ – 3
ns
Note: t
φ = t
cyc/2
t
cyc
INST0 to 7
tφ
WH
CPUCLK
PSEN
A8 to A19
AD0 to AD7
ALE
PC0 to 7
PC8 to 19
tφ
WL
t
AW
t
PAD
t
PW
t
ALS
t
ALH
t
IS
t
IH
t
AHS
t
AHH
Bus timing during no wait cycle time
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