SP337E 3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER
■The SP337E is a dual mode serial transceiver containing both RS-232 and RS-485/422 line drivers and receivers. The RS-232 mode provides three drivers and five receivers to support all eight signals commonly used in the DB9 serial port connector (3TX/5RX). In RS-485 mode the device features two independent high speed RS-485/422 transmit and receive channels (2TX/2RX). The default RS-485 configuration is full-duplex, but half-duplex operation can be obtained by tying together the TX and RI pins, and the TXEN and RXEN signals.
■The SP337E is pin compatible to MaxLinear’s SP334.
■The SP337EB features a maximum data rate of 250kbps in RS-232 mode and a maximum data rate of 15Mbps in RS-485. However, the SP337EU features a maximum data rate of 1Mbps in RS-232 mode and a maximum data rate of 15Mbps in RS-485 mode.
■The MaxLinear-patented high efficiency charge pumps (5,306,954) deliver true RS-232 driver output voltages from a single power supply from 3.3V to 5V. Charge pump outputs are self-monitored to minimize power consumption. The SP337E requires only four 0.1μF capacitors for complete functionality.
■All RS-485 receivers or transceivers feature high impedance inputs which allow up to 256 transceivers on a single shared bus. When configured in RS-485 mode, each driver may be individually enabled or put into tri-state, simplifying use on shared buses or for bidirectional communication. The RS-485/422 drivers can be disabled (high-Z output) by the TXEN enable pin. The RS-232 receiver outputs can be disabled by the RXEN enable pin.
■All receivers have advanced failsafe protection to prevent oscillation when inputs are un-connected. In RS-232 mode, each receiver input has a 5kΩ pull- down to ground. in RS-485 mode, receivers will default to output logic 1 if inputs are floating, shorted, or open but terminated.
■All driver outputs and receiver inputs are protected against ESD strikes up to ±15,000 volts.
●FEATURES:
■ 3.3V to 5V Single Supply Operation
■ Robust ±15kV ESD Protection
▲Human Body Model
■ Max Data Rate of 15Mbps in RS-485 mode and up to 1Mbps in RS-232 mode (SP337EU)
■ 3 Drivers, 5 Receivers RS-232/V.28
■ 2 Drivers, 2 Receivers RS-485/RS-422
▲Full-Duplex Configuration
▲1/8th Unit Load, up to 256 receivers on bus
■ RS-485 Advanced Failsafe on Open, Short or Terminated Lines
■ Full Differential Driver Tri-State (Hi-Z) Control
■ Receiver Output Tri-State Control
■ TSSOP-28 Package
|
SP337E 、 SP337EBEY-L 、 SP337EBEY-L/TR 、 SP337EUEY-L 、 SP337EUEY-L/TR 、 XR21B1420IL28-0A-EVB 、 SP337EU 、 SP337EB |
|
|
[ Dual Protocol Serial Ports ][ RS-232 ][ RS-485 ][ Industrial Computers ][ Industrial and Process Control Equipment ][ Point-Of-Sales Equipment ][ Networking Equipment ][ HVAC Controls Equipment ][ Building Security Equipment ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
TSSOP |
|
|
English Chinese Chinese and English Japanese |
|
|
July 5, 2021 |
|
|
Rev. 2.0.0 |
|
|
208DSR00 |
|
|
598 KB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
