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LTC1321ISW#TRPBF

厂商:
Linear
类别:
多协议收发器
包装:
-
封装:
SO
无铅情况/ROHS:
无铅
描述:
RS232/EIA562/RS485 Transceivers

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  • 参数
  • 描述
  • 文档
参数 数值
Drivers (#) 2
Receivers (#) 2
Protocols Supported RS232, RS562, RS422, RS485
Multiprotocol Data Rate 120kbps (RS232/RS562), 10Mbps (RS422/RS485)
Signals
Additional Signals
Termination
Packages SW-24, N-24
ESD (kV) 10
Supply Voltage Range 5V
DCE or DTE
Additional Supply
Extended Temp C, I
Featured no
Date Added 1984-01-01
Price 1k * $4.60 (LTC1321CN)
New no

特点
LTC1321: 2-EIA562/RS232 Transceivers/2-RS485 Transceivers
LTC1322: 4-EIA562/RS232 Transceivers/2-RS485 Transceivers
LTC1335: 4-EIA562 Transceivers/2-RS485 Transceivers with OE
LTC1321/LTC1322 Have the Same Pinout as SP301/SP302
LTC1335 Features Receiver Three-State Outputs
Low Supply Current: 1mA Typical
15μA Supply Current in Shutdown
120kBaud in EIA/TIA-562 or RS232 Mode
10MBaud in RS485/RS422 Mode
Self-Testing Capability in Loopback Mode
Power-Up/Down Glitch-Free Outputs
Driver Maintains High Impedance in Three-State, Shutdown or With Power Off
Thermal Shutdown Protection
I/O Lines Can Withstand ±25V
Withstands Repeated 10kV ESD Pulses

典型应用

描述
The LTC1321/LTC1322/LTC1335 are low power CMOS bidirectional transceivers, each featuring two reconfigurable interface ports. Each can be configured as two RS485 differential ports, as two single-ended ports, or as one RS485 differential port and one single-ended port. The LTC1321/LTC1322 can provide RS232 or EIA562 compatible single-ended outputs; the LTC1335 provides EIA562 compatible outputs and additionally includes an output enable pin, allowing the receiver logic level outputs to be three-stated.
The RS232/EIA562 transceivers operate to 120kbaud and are in full compliance with EIA/TIA-562 specification. The RS485 transceivers operate to 10Mbaud and are in full compliance with RS485 and RS422 specifications. All interface drivers feature short-circuit and thermal shutdown protection. An enable pin allows RS485 driver outputs to be forced into high impedance which is maintained even when the outputs are forced beyond supply rails or power is off. Both driver outputs and receiver inputs feature ±10kV ESD protection. A loopback mode connects the driver outputs back to the receiver inputs for diagnostic self-test.
The LTC1321/LTC1322 can support RS232 voltage levels when 6.5V /= –10V. The LTC1335 supports receiver output enable but not RS232 levels. A shutdown mode reduces the IM CC supply current to 15μA.

LT Journal
文档名称 文档类型 软件 描述
LTC1321ISW#TRPBFPDF下载 点击下载 点击下载 Sep 2000 PolyPhase Switcher Reduces Parts Count for Smaller, Less Expensive Mobile CPU Supply
数据表 (英文)
文档名称 文档类型 软件 描述
LTC1321ISW#TRPBFPDF下载 点击下载 点击下载 LTC1709-7 - 2-Phase, 5-Bit VID, Current Mode, High Efficiency, Synchronous Step-Down Switching Regulator
可靠性数据
文档名称 文档类型 软件 描述
LTC1321ISW#TRPBFPDF下载 点击下载 点击下载 R384 Reliability Data
设计要点 (英文)
文档名称 文档类型 软件 描述
LTC1321ISW#TRPBFPDF下载 点击下载 点击下载 DN247 - Dual-Phase High Efficiency Mobile CPU Power Supply Minimizes Size and Thermal Stress
LTC1321ISW#TRPBFPDF下载 点击下载 点击下载 Design Solutions 10 - Active Voltage Positioning Reduces Output Capacitors