厂商：Freescale
类别：16位单片机
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Linear
类别：微功率比较器
类别：功率控制
厂商：Yageo
类别：铝电解电容
厂商：
类别：混频器
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特点Four RS232 Transceivers or Two RS485 Transceivers on One ChipOperates from a Single 5V SupplyWithstands Repeated ±10kV ESD PulsesUses Small Charge Pump Capacitors: 0.1μFLow Supply Current: 8mA Typical10μA Supply Current in ShutdownSelf-Testing Capability in Loopback ModePower-Up/Down Glitch-Free OutputsDriver Maintains High Impedance in Three-State, Shutdown or with Power OffThermal Shutdown ProtectionReceiver Inputs Can Withstand ±25V典型应用描述描述 The LTC?1334 is a low power CMOS bidirectional transceiver featuring two reconfigurable interface ports. It can be configured as two RS485 differential ports, as two dual RS232 single-ended ports or as one RS485 differential port and one dual RS232 single-ended port. An onboard charge pump requires four 0.1μF capacitors to generate boosted positive and negative supplies, allowing the RS232 drivers to meet the RS232 ±5V output swing requirement with only a single 5V supply. A shutdown mode reduces the I CC supply current to 10μA. The RS232 transceivers are in full compliance with RS232 specifications. The RS485 transceivers 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 allows the driver outputs to be connected back to the receiver inputs for diagnostic self-test.