參數(shù)資料
型號: MC68HC05P8EVS
廠商: Motorola, Inc.
英文描述: HCMOS MICROCONTROLLER UNIT
中文描述: HCMOS微控制器
文件頁數(shù): 74/82頁
文件大?。?/td> 327K
代理商: MC68HC05P8EVS
MOTOROLA
11-8
ELECTRICAL SPECIFICATIONS
MC68HC705J2
Rev. 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
11.7 Control Timing (V
DD
= 3.3 Vdc)
NOTES:
1. The 2-bit timer prescaler is the limiting factor in determining timer resolution.
2. The minimum period t
ILIL
should not be less than the number of cycle times it takes to execute
the interrupt service routine plus 19 t
cyc
.
Table 11-6. Control Timing (V
DD
= 3.3 Vdc)
(V
DD
= 3.3 Vdc ± 10%, V
SS
= 0 Vdc; T
A
= T
L
to T
H
)
Characteristic
Oscillator Frequency
Crystal Option
External Clock Option
Internal Operating Frequency
Crystal (f
osc
÷
2)
External Clock (f
osc
÷
2)
Cycle Time
RESET Pulse Width
Timer Resolution (NOTE 1)
Interrupt Pulse Width Low (Edge-Triggered)
Interrupt Pulse Period
OSC1 Pulse Width
Symbol
Min
Max
Unit
f
osc
dc
2.0
2.0
MHz
f
op
dc
1.0
1.0
MHz
t
cyc
t
RL
t
RESL
t
ILIH
t
ILIL
t
OH
, t
OL
1000
1.5
4.0
250
(NOTE 2)
400
ns
t
cyc
t
cyc
ns
t
cyc
ns
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