參數(shù)資料
型號(hào): Q67126-C2001
廠商: SIEMENS AG
元件分類: 8位微控制器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件頁數(shù): 50/65頁
文件大?。?/td> 427K
代理商: Q67126-C2001
Semiconductor Group
50
1997-10-01
C540U
C541U
AC Characteristics
(cont’d)
External Clock Drive Characteristics
Parameter
Symbol
CPU Clock = 12 MHz
Duty cycle 0.4 to 0.6
Variable CPU Clock
1/CLP = 2 to 12 MHz
Unit
min.
83.3
max.
83.3
min.
83.3
max.
500
Oscillator period
CLP
ns
High time
TCL
H
TCL
L
t
R
t
F
DC
33
33
CLP-TCL
L
CLP-TCL
H
12
ns
Low time
33
33
ns
Rise time
12
ns
Fall time
12
12
ns
Oscillator duty cycle
0.4
0.6
33 / CLP
1 - 33 / CLP
Clock cycle
TCL
33
50
CLP * DC
min
CLP * DC
max
ns
SSC Interface Characteristics
Parameter
Symbol
Limit Values
Unit
min.
667
667
max.
Clock Cycle Time : Master Mode
Slave Mode
t
SCLK
t
SCLK
t
SCH
t
SCL
t
D
t
HO
t
S
t
HI
t
DTC
t
SC
ns
ns
Clock high time
300
ns
Clock low time
300
ns
Data output delay
100
ns
Data output hold
0
ns
Data input setup
100
ns
Data input hold
50
ns
TC bit set delay
2
t
CLCL
t
CLCL
0
8 CLP
ns
SLS low to first SCLK clock edge
Last SCLK clock edge to SLS high
t
CS
SLS low to STO active
ns
ns
t
TS
t
ST
t
D
100
ns
SLS high to STO tristate
100
ns
Data output delay (already
defined)
100
ns
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