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参数资料
| 型号： | DS1481S |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/10页 |
| 文件大小： | 0K |
| 描述： | IC BUS MASTER 1 WIRE 14-SOIC |
| 标准包装： | 50 |
| 接口： | 1 线 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
DS1481
4 of 10
EPP/ECP TRANSPARENT MODE
When the DS1481 first powers up it is in a transparent mode in which the three signal lines (auto line
feed, busy and select) that pass through the part are directly connected by transmission gates. This allows
bi-directional printers (or other parallel port peripherals) to communicate in either the EPP or ECP mode
of the PC parallel port. The DS1481 pin sets connected are as follows:
ENI
ENO
O1/BSY1
I1
O2/BSY2
I2
1-Wire communication using the DS1481 is impossible in transparent mode. To toggle to normal mode
four consecutive overdrive toggle commands must be issued. If this sequence has been issued and the
ENI pin remains high for at least 10ms the part will enter its normal mode of operation. Note that any
other 1-Wire time slot command issued during the sequence resets the sequence. The steps needed to
return to transparent mode are as described above with the exception that no additional wait is required at
the end of the four overdrive toggles to enter transparent mode.
While in transparent mode if the DS1481 detects that the ENO pin has been held low for more than 10ms
it turns off the transmission gate connecting ENI and ENO. This guarantees the host will have the ability
to take the DS1481 out of transparent mode and perform 1-Wire I/O operations.
Figure 1. DS1481 FUNCTIONAL BLOCK DIAGRAM
50K
I2
I1
O1/BSY1
O2/BSY2
I/O
RES
ENI
D/CLK
ENO
LAST PART
DETECTION
1-WIRE BUS
MASTER
OD
D
Q
CLK
Q
D
Q
CLK
Q
Not
Recommended
for
New
Design
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS1482 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor |
| DS1482S | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor |
| DS1482S/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Level Shifter and Line Driver with Load Sensor |
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