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| 型号： | DS1482S+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/7页 |
| 文件大小： | 0K |
| 描述： | IC LEVEL SHIFT 1-WIRE 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 线路驱动器，发射器 |
| 驱动器/接收器数： | 1/1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
DS1482
3 of 7
Figure 2. Typical Operating Circuit
(21)
VCCQ
SH7622
C
(164)
TxD0
(171)
RxD0
(32)
PTA0
(31)
PTA1
(178)
IRQ7
VCC
PCTLZ
VCCQ
DS1482
TXD
I/O
RXD
SPU
START
DONE
GND
IRLMS6702
RS
VCC = 5V
1-Wire
NETWORK
VCCQ = 3.3V
Selecting RS
Assuming that the series resistance of the FET in
on-condition can be neglected, the value of RS is
limited as follows:
RSmax = 0.0015 x VCCmin/I(standby,max)
RSmin = 0.01 x VCCmax/I(active,min)
Example:
VCCmin = 4.5V, VCCmax = 5.5V
I(standby,max) = 0.15mA
I(active,min) = 12mA
RSmax = 45
Ω, RSmin = 4.58Ω
To maximize available power on the 1-Wire line,
RS should be close to the lowest permissible
value, in this example 5.1
Ω ±5%. The effect of the
on-chip pullup resistor is negligible.
Figure 3. DS1482 Application Signals, Normal Communication
TXD
SPU, START, DONE ALL LOW
I/O
RXD
H
L
H
L
H
L
Figure 4. DS1482 Application Signals, Strong Pullup Case
TXD
SPU
RXD
I/O
START
CURRENT
tCF
1
DONE
2
3
4
H
L
H
L
H
L
PCTLZ
H
L
H
L
H
L
H
L
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| DS1482S/T | 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/T&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 |
| DS1482S+ | 功能描述:IC LEVEL SHIFT 1-WIRE 16-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| DS1482S+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 |
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