corebai芯佰微CBM485低功耗EIA RS-485/,SOP-8封装,可直接替换MAXIM美信,TI德州,MAX485,Anlog Devices ADM485。
FEATURES 特征
Low Quiescent Current: 300µA 低静态电流:300μA
-7V to +12V Common-Mode InputVoltage Range -7V 至 +12V 共模输入电压范围
Three-State Outputs 三态门输出
50ns Propagation Delays, 5ns Skew 50ns 传播延迟,5ns 倾斜
Half-Duplex Version Available 提供半双工版本
Operate from a Single 5V Supply 单5V 电源运行he Bus
Allows up to 32 Transceivers on t 总线上允许 32 个收发器
Data rate: 10 Mbps 数据速率:10 Mbps
Current-Limiting and Thermal Shutdown for Driver Overload Protection 限流和热关闭用于驱动过载保护
Enhanced ESD Specifications: 增强的 ESD 规范:
±15kV IEC61000-4-2 Air Discharge ±15kV IEC61000-4-2 空气放电
±8kV IEC61000-4-2 Contact Discharge ±8kV IEC61000-4-2 触点放电
APPLICATIONS 应用
Low power RS-485 systems 低功耗 RS-485 系统
DTE/DCE interface DTE/DCE 接口
Packet switching、 数据包交换
Local area networks (LNAs) 本地网络 (LNA)
Data multiplexers 多路数据转换器
Data concentration 数据集中
Integrated services digital network (ISDN) 集成服务数字网络 (ISDN)
GENERAL DESCRIPTION
The CBM485 is low-power transceivers for RS-485 and RS-422 communication. IC contains one driver and one receiver.
The driver slew rates of the CBM485 is not limited, allowing them to transmit up to 10 Mbps.
These transceivers draw between 120µA and 500µA of supply current when unloaded or fully loaded with disabled drivers. All parts
operate from a single 5V supply. Drivers are short-circuit current limited and are protected against excessive power dissipation by
thermal shutdown circuitry that places the driver outputs into a high-impedance state.
The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit. The CBM485 is designed
for half-duplex applications.
一般描述
CBM485 是低功耗收发器,用于RS-485 和 RS-422 通信。IC包含一个驱动程序和一个接收器。
CBM485 的驱动摆率不限,深圳市洛伦兹科技有限公司,原装进口485A价格,洛伦兹科技,允许他们传输多达10M b p s。这些收发器绘图在 120μA 与500μA电源电流之间时退出或满载时禁用驱动程序。所有零件从单个 5V 电源运行。驱动程序是短路电流有限,且受到保护防止过度功耗热关闭电路,原装进口485A价格,使驱动器输出进入高阻抗状态。
接收器输入具有故障安全功能保证逻辑高输出,如果输入是开路。CBM485 设计用于半双工应用。
接口电路
Part No Description Package Cross Reference
CBM485A 低功耗EIA RS-485/422收发器 SOP-8 MAX485 ADM485
CBM3085A 失效保护、高速(10Mbps)、限摆率、RS-485/RS-422收发器 SOP-8 MAX3085 ADM3085
CBM3485A 3.3 V、低功耗、RS-485/RS-422收发器 SOP-8 MAX3485 ADM3485
CBM3232A ±15 kV ESD保护,3.0V至5.5V、低功耗、1Mbps、真RS-232收发器 SOP-16 MAX3232 ADM3232
CBM232A 正5V ,多通道RS-232驱动器/接收器 SOP-16 MAX232A ADM232
corebai芯佰微CBM485低功耗EIA RS-485/,SOP-8封装,可直接替换MAXIM美信,原装进口485A价格,TI德州,原装进口485A价格,MAX485,Anlog Devices ADM485。
PACKAGE/ORDERING INFORMATION
PRODUCTORDERINGNUMBERTEMPRANGE PACKAGEPAKEAGEMARKINGTRANSPOTMEDIA,QUANTILY
CBM485CBM485AS -40℃~85℃ SOIC-8(SOP8) CBM485A Tape and Reel,2500
CBM485ACS -0℃~70℃ SOIC-8(SOP8) CBM485C Tape and Reel,2500
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) 12V Continuous Power Dissipation (TA= +70℃)
Control Input Voltage -0.5V to (VCC + 0.5V) 8-Pin Plastic DIP (derate 9.09mW/°C above +70℃)727mW
Driver Input Voltage (DI) -0.5V to (VCC+ 0.5V) 8-Pin SOP (derate 5.88mW/℃ above +70℃) 471mW
Driver Output Voltage (A, B) -8V to +12.5V Operating Temperature Ranges -40℃ to +85℃
Receiver Input Voltage (A, B) -8V to +12.5V Storage Temperature Range -65℃ to +160℃
Receiver Output Voltage (RO) -0.5V to (VCC+0.5V) Lead Temperature (soldering, 10sec) +300℃
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond
those indicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Differential Driver Output (no load) Vod1 5 V
Differential Driver Output (with load) VOD2 R = 50Ω (RS-422) 2 V
R = 27Ω (RS-485), Figure 1 1.5 5
Change in Magnitude of Driver
Differential Output Voltage for ∆VOD R = 27Ω or 50Ω, Figure 1 0.2 V
Complementary Output States
Driver Common-Mode Output Voltage VOC R = 27Ω or 50Ω, Figure 1 3 V
Change in Magnitude of Driver
Common-Mode Output Voltage for ∆VOC R = 27Ω or 50Ω, Figure 1 0.2 V
Complementary Output States
Input High Voltage VIH DE, DI, RE 2.0 V
Input Low Voltage VIL DE, DI, RE 0.8 V
Input Current IIN1 DE, DI, RE ±2 μA
Input Current (A, B) IIN2 DE = 0V;VIN = 12V 1.0 毫安
VCC = 0V or 5.25VVIN = -7V -0.8
Receiver Differential ThresholdVoltage VTH -7V ≤ VCM ≤12V -0.2 0.2 V
Receiver Input Hysteresis ∆VTH VCM = 0V 70 mV
Receiver Output High Voltage VOH IO = -4豪安,VID = 200mV 3.5 V
Receiver Output Low Voltage VOL IO = 4豪安 VID = -200mV 0.4 V
Three-State (high impedance) Output
Current at Receiver IOZR 0.4V ≤ VO ≤ 2.4V ±1 微安
Receiver Input Resistance RIN -7V ≤ VCM ≤ 12V 12 kΩ
No-Load Supply Current (Note 3) ICC DE = VCC 500 900
RE = 0V or VCC 300 500 微安
DE = 0V
Driver Short-Circuit Current IOSD1 -7V ≤ VO ≤ 12V (Note 4) 35 250 毫安
VO = High
Driver Short-Circuit Current IOSD2 -7V ≤ VO ≤12V (Note 4) 35 250 毫安
VO = Low
Receiver Short-Circuit Current IOSR 0V ≤ VO ≤ VCC 7 95 mA
ESD Protection A, B, Y and Z pins, tested using 15 kV
Human Body Model
德州ULN2003A深圳代理商_2003A厂家直销相关-深圳市洛伦兹科技有限公司
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