参数资料
型号: DS80C323-QCD
厂商: DALLAS SEMICONDUCTOR
元件分类: Microcontroller
英文描述: 8-BIT, MROM, 18 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 25/42页
文件大小: 687K
代理商: DS80C323-QCD
DS80C320/DS80C323
31 of 42
DS80C320/DS80C323 EXTERNAL CLOCK CHARACTERISTICS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Clock High Time
tCHCX
10
ns
Clock Low Time
tCLCX
10
ns
Clock Rise Time
tCLCH
5
ns
Clock Fall Time
tCHCL
5
ns
DS80C320/DS80C323 SERIAL PORT MODE 0 TIMING CHARACTERISTICS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Serial Port Clock Cycle Time
SM2=0 12 clocks per cycle
SM2=1 4 clocks per cycle
tXLXL
12tCLCL
4tCLCL
ns
Output Data Setup to Clock
Rising Edge
SM2=0 12 clocks per cycle
SM2=1 4 clocks per cycle
tQVXH
10tCLCL
3tCLCL
ns
Output Data Hold from Clock
Rising
SM2=0 12 clocks per cycle
SM2=1 4 clocks per cycle
tXHQX
2tCLCL
tCLCL
ns
Input Data Hold after Clock
Rising
SM2=0 12 clocks per cycle
SM2=1 4 clocks per cycle
tXHDX
tCLCL
ns
Clock Rising Edge to Input
Data Valid
SM2=0 12 clocks per cycle
SM2=1 4 clocks per cycle
tXHDV
11tCLCL
2tCLCL
ns
EXPLANATION OF AC SYMBOLS
In an effort to remain compatible with the original 8051 family, this device specifies the same parameter
as such devices, using the same symbols. For completeness, the following is an explanation of the
symbols.
t
Time
A
Address
C
Clock
D
Input data
H
Logic level high
L
Logic level low
I
Instruction
P
PSEN
Q
Output data
R
RD
signal
V
Valid
W
WR
signal
X
No longer a valid logic level
Z
Tristate
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相关代理商/技术参数
参数描述
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