參數(shù)資料
型號(hào): HMS77C2000
英文描述: [General Purpose(2) : ADC/ LED/ SCI/ PWM]
中文描述: [通用(2):藝術(shù)發(fā)展局/發(fā)光/工商/脈寬調(diào)制]
文件頁(yè)數(shù): 15/59頁(yè)
文件大?。?/td> 660K
代理商: HMS77C2000
HMS77C2000/2001
12
Nov. 2002 Ver 1.1
7.6 AC ELECTRICAL CHARACTERISTICS (2)
(T
A
=-40
°
C~+85
°
C)
Parameter
1
1.
2.
These parameters are characterized but not tested.
Data in “Typ” column is at 25
°
C unless otherwise stated. These parameters are for design guidance only and are not tested.
Symbol
Test Condition
Specification
Unit
Min
Typ
2
Max
RESET Pulse Width (Low)
T
RESET
V
DD
= 5V
4000
-
nS
Watchdog Timer Time-Out
Period ( No-prescaler )
T
WDT
V
DD
= 5V
9
18
30
mS
Internal Reset Timer Period
T
IRT
V
DD
= 5V, ERC/IRC
osc
9
18
30
mS
V
DD
= 5V, XT/LF osc
-
300
-
uS
Internal Calibrated RC Fre-
quency
F
IRC
V
DD
= 5V
3.6
-
4.4
MHz
EC0 High or Low Pulse Width
T
EC0
H
T
EC0
L
T
CY
= 4 X T
XIN
Instruction cycle time
nS
No Prescaler
10
-
-
With Prescaler
0.5T
CY
+ 20
-
-
EC0 Period
T
EC0
P
N
= Prescaler Value
( 1,2,4,......256 )
nS
No Prescaler
20
-
-
With Prescaler
(T
CY
+40) / N
-
-
T
XIN
R
X
IN
EC0
0.15V
0.85V
DD
0.15V
DD
RESET
0.15V
DD
0.85V
DD
T
EC0
H
T
XIN
T
RESET
T
XIN
F
T
XIN
H
T
XIN
L
T
EC0
H
T
EC0
P
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