SP338E RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
● The SP338 is an advanced multiprotocol transceiver supporting RS-232, RS-485, and RS-422 serial standards in a 40 pin QFN package Integrated cable termination and four confguration modes allow all three protocols to be used interchangeably over a single cable or connector with no additional switching components. Full operation requires only four extemal charge pump capacitors.
● The RS-485/422 modes feature up to two drivers and four receivers (2TX/4RX) in half, full, and mixed duplex configurations. The RS-232 mode(3TX/5RX) provides full support of all eight signals commonly used with the Db9 RS-232 connector. a dedicated diagnostic loopback mode is also provided.
● The high speed drivers operate up to 20Mbps in RS-485/422 modes, and up to 1Mbps in RS-232 mode. All drivers can be slew limited to 250kbps in any mode to minimize electromagnetic interference (EMI).
● All transmitter outputs and receiver inputs feature robust electrostatic discharge (ESD) protection to ±15 KV Human Body Model (HBM) and ±8KV IEC-61000-4-2 Contact.Each receiver output has full fail-protection to avoid system lockup, oscillation, or terminate states by defaulting to logic-high output level when the inputs are open, shorted, or terminated but undriven. No extemal biasing resistors are required.
● The RS-232 receiver inputs include a 5kΩ pull-down to ground. The RS-485/422 receiver inputs are high impedance (› 96kΩ when termination is disabled allowing up to 256 devices on a single communication bus (1/8th unit load).
● The SP338 operates from a single power supply, either 3.3V or 5V, with low idle current The shutdown mode consumes less than 10uA for low power stand by operaton,
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SP338E 、 SP338 、 SP33BEER1-L 、 SP33BEER1-L/TR 、 XR21B142CIL28-0A-EVB |
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TRANSCEIVER WITH INTERNAL TERMINATION 、 multiprotocol transceiver |
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[ Dual Protocol Serial Ports(RS-232 or RS-485/422) ][ Industrial Computers ][ Industrial and Process Control Equipment ][ Point-of-Sale Equipment ][ Networking Equipment ][ HVAC Controls Equipment ][ Building Security and Automaton Equipment ] |
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Datasheet |
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Please see the document for details |
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QFN |
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English Chinese Chinese and English Japanese |
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APRIL 2020 |
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REV.1.0.3 |
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3.5 MB |
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