參數(shù)資料
型號(hào)： DS2480
廠商： Maxim Integrated Products, Inc.
英文描述： Serial 1-Wire Line Driver(1線(xiàn)串行線(xiàn)驅(qū)動(dòng)器)
中文描述： 串行、1-Wire線(xiàn)驅(qū)動(dòng)器
文件頁(yè)數(shù)： 14/26頁(yè)
文件大?。?/td> 191K
代理商： DS2480
DS2480
042498 14/26
The idle time following the Reset/Presence Detect
sequence depends on the serial communication speed
and the host’s response time.
A Write 1 and Read Data time slot is comprised of the
segments t
LOW1
, t
DSO
and t
HIGH
. During write 1 time
slots, after the write 1 low time t
LOW1
is over, the
DS2480 waits for the duration of the data sample offset
and then samples the voltage at the 1–Wire bus to read
the response. After this, the waiting time t
HIGH1
must
expire before the time slot is complete. A Write 0 time
slot only consists of the two segments t
LOW0
and t
REC0
.
If the network is large or heavily loaded, one should
select flexible speed and extend t
LOW1
to more than 8
μ
s to allow the 1–Wire bus to completely discharge.
Since a large or heavily loaded network needs more
time to recharge, it is also recommended to delay sam-
pling the bus for reading. A higher value for t
DSO
will
increase the voltage margin and also provide extra
energy to the slave devices when generating a long
series of write 0 time slots. However, the total of t
LOW1
+
t
DSO
should not exceed 22
μ
s*. Otherwise the slave
device responding may have stopped pulling the bus
low when transmitting a logic 0.
The idle time between time slots within a byte or during a
12–bit sequence while the Search Accelerator is on is
zero. Between bytes, 12–bit search sequences and
single bits the idle time depends on the RS232 data rate
and the host’s response time. The response byte is sent
to the host as soon as the last time slot of a byte, 12–bit
sequence or the command is completed.
WRITE 1 AND READ DATA TIME SLOT
Figure 6b
t
HIGH1
t
LOW1
t
DSO
TIME SLOT DURATION
t
SLOT
NEXT
T.S.
IDLE
TIME
SAMPLING
5V
0V
Speed
Regular
t
LOW1
8
μ
s
1
μ
s
8 to 15
μ
s
t
DSO
3
μ
s
1
μ
s
t
HIGH1
49
μ
s
8
μ
s
49
μ
s
t
SLOT
*
60
μ
s
10
μ
s
60 to 74
μ
s
Overdrive
Flexible
3 to 10
μ
s
WRITE 0 TIME SLOT
Figure 6c
TIME SLOT DURATION
t
SLOT
IDLE
TIME
t
RECO
t
LOW0
NEXT
T.S.
5V
0V
Speed
Regular
t
LOW0
*
57
μ
s
7
μ
s
57
μ
s
t
REC0
3
μ
s
3
μ
s
3 to 10
μ
s
t
SLOT
*
60
μ
s
10
μ
s
60 to 67
μ
s
Overdrive
Flexible
*In a 5V environment (
±
1V, full temperature range) the tolerance of the internal time base of 1–Wire slave devices is
much narrower than what it is when operated at the minimum voltage of 2.8V. Therefore, the timing generated by the
DS2480 is in compliance with the requirements of all MicroLAN–compatible 1–Wire devices.
相關(guān)PDF資料
PDF描述
DS2505-UNW UniqueWare Add-only Memory(專(zhuān)用只加存儲(chǔ)器)
DS2506-UNW UniqueWare Add-only Memory(專(zhuān)用只加存儲(chǔ)器)
DS2506 64K bit Add-Only Memory(64K位只加存儲(chǔ)器)
DS26303 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303G-120 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2480B 功能描述:緩沖器和線(xiàn)路驅(qū)動(dòng)器 RoHS:否 制造商:Micrel 輸入線(xiàn)路數(shù)量:1 輸出線(xiàn)路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DS2480B 制造商:Maxim Integrated Products 功能描述:IC SERIAL LINE DRIVER 2480 SOIC8
DS2480B/T&R 功能描述:緩沖器和線(xiàn)路驅(qū)動(dòng)器 RoHS:否 制造商:Micrel 輸入線(xiàn)路數(shù)量:1 輸出線(xiàn)路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DS2480B+ 功能描述:緩沖器和線(xiàn)路驅(qū)動(dòng)器 Serial - 1-Wire Line Driver RoHS:否 制造商:Micrel 輸入線(xiàn)路數(shù)量:1 輸出線(xiàn)路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DS2480B+R 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Serial to 1-Wire Line Driver
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*