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参数资料
| 型号： | DS2482S-100+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | IC I2C TO 1WIRE BRIDGE 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | DS2482S-100+T&RDKR |
Single-Channel 1-Wire Master
Pin Description
PIN
SO
WLP
NAME
FUNCTION
1
B3
VCC
Power-Supply Input
2
C3
IO
Input/Output Driver for 1-Wire Line
3
C2
GND
Ground Reference
4
B1
SCL
I2C Serial Clock Input. Must be connected to VCC through a pullup resistor.
5
B2
SDA
I2C Serial Data Input/Output. Must be connected to VCC through a pullup resistor.
6
A1
PCTLZ
Active-Low Control Output for an External p-Channel MOSFET. Provides extra power to the 1-Wire
line, e.g., for use with 1-Wire devices that require a higher current temporarily to operate.
7
A2
AD1
8
A3
AD0
I2C Address Inputs. Must be connected to VCC or GND. These inputs determine the I2C slave
address of the device (see Figure 8).
CONFIGURATION
REGISTER
I2C
INTERFACE
CONTROLLER
INPUT/OUTPUT
CONTROLLER
LINE
XCVR
T-TIME OSC
DS2482-100
STATUS
REGISTER
READ DATA
REGISTER
SDA
IO
PCTLZ
AD0
AD1
SCL
Figure 1. Block Diagram
Detailed Description
The DS2482-100 is a self-timed 1-Wire master that sup-
ports advanced 1-Wire waveform features including
standard and overdrive speeds, active pullup, and
strong pullup for power delivery. The active pullup
affects rising edges on the 1-Wire side. The strong
pullup function uses the same pullup transistor as the
active pullup, but with a different control algorithm. In
addition, the strong pullup activates the PCTLZ pin,
controlling optional external circuitry to deliver addition-
al power beyond the capabilities of the on-chip pullup
transistor. Once supplied with command and data, the
input/output controller of the DS2482-100 performs
time-critical 1-Wire communication functions such as
reset/presence-detect cycle, read-byte, write-byte, sin-
gle-bit R/W, and triplet for ROM Search, without requir-
ing interaction with the host processor. The host obtains
feedback (completion of a 1-Wire function, presence
pulse, 1-Wire short, search direction taken) through the
Status Register and data through the Read Data
Register. The DS2482-100 communicates with a host
processor through its I2C bus interface in standard
mode or in fast mode. The logic state of two address pins
determines the I2C slave address of the DS2482-100,
allowing up to four devices operating on the same bus
segment without requiring a hub. See Figure 1 for a block
diagram.
DS2482-100
Maxim Integrated
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2482S-101+ | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Channel 1-Wire Master with Sleep Mode |
| DS2482S-101+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Channel 1-Wire Master with Sleep Mode |
| DS2482S-800 | 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 |
| DS2482S-800/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 |
| DS2482S-800+ | 功能描述:接口 - 专用 8 Ch 1-Wire Master 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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