參數(shù)資料
型號: SDA 5251
廠商: SIEMENS AG
英文描述: TVTEXT 8-Bit Microcontroller(ROM-Versions )(TV視頻的8位微控制器(含ROM 型 ))
中文描述: TVTEXT 8位微控制器(ROM的版本)(電視視頻的8位微控制器(含光盤型))
文件頁數(shù): 131/143頁
文件大?。?/td> 1050K
代理商: SDA 5251
SDA 525x
Semiconductor Group
131
1998-04-08
7.3
AC-Characteristics
External Clock Drive XTAL1 / Quartz Clock Drive XTAL1 - XTAL2
Table 35
T
A
= 0 to 70
°
C;
V
DD
= 5 V
±
10 %,
V
SS
= 0 V (
C
L
= 80 pF)
Parameter
Figure 39
External Clock Cycle
Symbol
Limit Values
Fixed internal Clock
1/
t
CLCL
= 18 MHz
min.
6
t
CLCL
55.6
13
13
Unit
max.
Cycle time
Address out to valid instr in
Oscillator period
External clock high time
External clock low time
External clock rise time
External clock fall time
t
CY
t
AVIV
t
CLCL
t
CHCX
t
CLCX
t
CLCH
t
CHCL
2.3. x
t
CLCL
13
13
ns
ns
ns
ns
ns
ns
ns
UED04735
CHCX
t
0.7
0.2
V
DD
V
DD
-0.1
-0.5
V
DD
t
CLCX
CLCL
t
t
CLCH
CHCL
t
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