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參數資料
| 型號： | DS1481S |
| 英文描述： | 1?Wire Bus Master with Overdrive |
| 中文描述： | 1？Wire總線主機，帶有高速 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 69K |
| 代理商： | DS1481S |
DS1481
1–Wire Bus Master with Overdrive
DS1481
PRELIMINARY
021798 1/10
FEATURES
Provides a synchronous interface to Dallas Semicon-
ductor 1–wire devices
Compatible with low power parallel ports
Can be cascaded with other DS1481’s
Allows print spooler and other processes to run during
1–wire I/O
Provides high speed communcation with overdrive
capable devices
Space saving 14–pin (150 mil), SOIC package
PIN ASSIGNMENT
D/CLK
O2/BSY2
O1/BSY1
RES
ENO
ENI
V
CC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
I/O
I1
I2
NC
NC
GND
NC
14–PIN SOIC (150 MIL)
PIN DESCRIPTION
V
CC
ENI
D/CLK
RES
O1/BSY1
O2/BSY2
GND
I1
I2
I/O
ENO
NC
– Supply
– Enable In
– Data/Clock
– Reset
– Output 1/Busy 1
– Output 2/Busy 2
– Ground
– Input 1
– Input 2
– 1–wire I/O
– Enable Out
– No Connect
DESCRIPTION
The DS1481 is a dedicated 1–wire timing generator.
The device is normally used in conjunction with a paral-
lel port controller to provide the necessary interface to
the host processor. Busy signals allow the host proces-
sor to perform other tasks while 1–wire “time–slots” are
completed. The DS1481 also saves the state of D/CLK
and RES allowing print spoolers to operate without
affecting 1–wire communication.
DS1481 based devices can be cascaded. The first
device’s O1/BSY1 and O2/BSY2 connect to the PC
printer port’s BUSY and SELECT OUT signals (pins 11
and 13 respectively). The next DS1481 connects its
O1/BSY1 and O2/BSY2 to the first device’s I1 and I2
respectively. ENO of the first device connects to ENI of
the second device. More DS1481’s can be stacked in a
similar manner. The last devices I1 and I2 connect to
BUSY and SELECT of the attached printer.
The DS1481’s 3–volt operation insures compatibility
with most low power parallel ports (i.e., portable com-
puters).
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1481S/T&R | 制造商:Maxim Integrated Products 功能描述:IC BUS MASTER 1 WIRE 14-SOIC |
| DS1481S/T&R | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
| DS1482 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor |
| DS1482S | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor |
| DS1482S/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor |
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