参数资料
型号: DS2480
英文描述: Serial 1.Wire Line Driver
中文描述: 串行、1-Wire线驱动器
文件页数: 24/26页
文件大小: 185K
代理商: DS2480
DS2480
042498 24/26
RS232 DATA TIMING TXD LINE
Figure 13
START
BIT 0
BIT 1
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
STOP
T
T
T
T
= 1/BAUD RATE OF UART
10 T
T
1.5 T
R
2.5 T
R
3.5 T
R
4.5 T
R
5.5 T
R
6.5 T
R
7.5 T
R
8.5 T
R
9.5 T
R
T
R
= 1/BAUD RATE OF DEVICE
V
IL
V
IH
t
IDLET
DIAGRAM DRAWN FOR POL = 5V)
FUNCTION AND SPEED MATRIX
Table 7
Baud Rate
1–Wire Speed
Function
Regular
Flexible
Overdrive
9600 bps
Search
Command/Data
19200 bps
X
X
Search
X
Command/Data
57600 bps
X
X
Search
X
X
Command/Data
115200 bps
X
X
X
Search
X
X
Command/Data
X
t
IDLET
is guaranteed by the UART; no precautions necessary
not recommended unless t
IDLET
is controlled by the host through a wait function
TXD LINE ASYMMETRY
Figure 14
2T
T
(DIAGRAM DRAWN FOR POL = 5V)
t
START
= T
T
+ (–) t
ASYM
t
BIT0
= T
T
– (+) t
ASYM
2t
ASYM
STOP
START
BIT 0
BIT 1
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相关代理商/技术参数
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