參數(shù)資料
型號(hào): SAF-C505-LM
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, MQFP-44
文件頁數(shù): 72/85頁
文件大小: 487K
代理商: SAF-C505-LM
C505L
Data Sheet
70
06.99
AC Characteristics (16 MHz, 0.4 to 0.6 Duty Cycle)
(cont’d)
Note: The 16 MHz values in the tables are given as an example for a typical duty cycle variation
of the oscillator clock from 0.4 to 0.6.
External Clock Drive Characteristics
Parameter
Symbol
CPU Clock = 16 MHz
Duty Cycle 0.4 to 0.6
Variable CPU Clock
1/CLP = 2 to 16 MHz
Unit
min.
max.
min.
max.
Oscillator period
CLP
62.5
62.5
62.5
500
ns
High time
TCL
H
TCL
L
t
R
t
F
DC
25
25
CLP – TCL
L
CLP – TCL
H
10
ns
Low time
25
25
ns
Rise time
10
ns
Fall time
10
10
ns
Oscillator duty cycle
0.4
0.6
25 / CLP
CLP
×
DC
min
1 – 25 / CLP
CLP
×
DC
max
Clock cycle
TCL
25
37.5
ns
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