Datasheet > SP335E

SP335E

更新时间： 2024-11-26 01:00:31

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
23页	1720K
描述
TRANSCEIVER WITH INTERNAL TERMINATION

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中文翻译

获取价格

数据手册

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SP335E 数据手册

SP335E

RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION

August 2017

Rev. 1.0.2

FEATURES

GENERAL DESCRIPTION

 Pin-Selectable Cable Termination

The SP335 is an advanced multiprotocol transceiver

supporting RS-232, RS-485, and RS-422 serial

standards. Integrated cable termination and multiple

configuration modes allow all three protocols to be

 No External Resistors Required for RS-485/422

Termination or Biasing

 Robust ESD Protection:

used interchangeably over

single cable or

connector with no additional switching components.

Full operation requires only four external charge

pump capacitors.

■ ±15kV IEC 61000-4-2 Air Gap Discharge

■ ± 8kV IEC 61000-4-2 Contact Discharge

■ ±15kV Human Body Model (HBM)

The RS-485/RS-232 mode pin selects RS-485 mode

when high, and RS-232 mode when low. In RS-485

mode, the TERM pin enables the differential 120

termination, and the HALF/FULL pin configures the

transceiver as either half or full duplex.

 20Mbps RS-485 and 1Mbps RS-232 Data Rates

 Pin-Selectable 250kbps Slew Limiting

 Single Supply Operation from 3V to 5.5V

 1.65V to 5.5V Logic Interface V pin

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)

by setting the dedicated SLEW pin low.

 2 Drivers, 2 Receivers RS-232/V.28

 1 Driver, 1 Receiver RS-485/422

■ Full or Half Duplex Configuration

■ 1/8th Unit Load, up to 256 receivers on bus

All transmitter outputs and receiver inputs feature

robust electrostatic discharge (ESD) protection to

±15kV IEC 61000-4-2 Airgap, ±15kV Human Body

Model (HBM) and ±8kV IEC 61000-4-2 Contact. Each

receiver output has full fail-safe protection to avoid

system lockup, oscillation, or indeterminate states by

defaulting to logic-high output level when the inputs

are open, shorted, or terminated but undriven. No

external biasing resistors are required.

 RS-485/422 Enhanced Receiver Fail-safe for open,

shorted, or terminated but idle inputs

 10nA Shutdown Supply Current (typical)

 Small 32 QFN package (5mm x 5mm)

TYPICAL APPLICATIONS

 Software Programmable Serial Ports

The RS-232 receiver inputs include a 5k pull-down

to ground when in RS-232 mode. The RS-485/422

receiver inputs are high impedance (>96k when

termination is disabled), allowing up to 256 devices

on a single communication bus (1/8th unit load).

(RS-232, RS-422, RS-485)

 Industrial and Single Board Computers

 Industrial and Process Control Equipment

 Point-Of-Sale Equipment

The SP335 operates from a single power supply,

either 3.3V or 5V, with low idle current. The shutdown

mode consumes less than 1µA in low power standby

operation with RS-232 receivers enabled.

 HVAC Controls and Networking Equipment

 Building Security and Automation

(1)

ORDERING INFORMATION

PART NUMBER

SP335EER1-L

OPERATING TEMPERATURE RANGE

LEAD-FREE

PACKAGE

PACKAGE METHOD

Tray

Reel

Tray

Reel

-40°C to +85°C

SP335EER1-L/TR

SP335ECR1-L

Yes⁽²⁾

32-pin QFN

0°C to +70°C

SP335ECR1-L/TR

SP335EER1-0A-EB

NOTES:

SP335E Evaluation Board

1. Refer to www.exar.com/SP335E for most up-to-date Ordering Information

2. Visit www.exar.com for additional information on Environmental Rating

12 3 4 5 6 7...23

中文翻译

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与SP335E相关器件

型号	品牌	获取价格	描述	数据表
SP335E_17	EXAR	获取价格	TRANSCEIVER WITH INTERNAL TERMINATION
SP335ECR1-L	EXAR	获取价格	TRANSCEIVER WITH INTERNAL TERMINATION
SP335ECR1-L/TR	EXAR	获取价格	TRANSCEIVER WITH INTERNAL TERMINATION
SP335EER1-0A-EB	EXAR	获取价格	TRANSCEIVER WITH INTERNAL TERMINATION
SP335EER1-L	EXAR	获取价格	TRANSCEIVER WITH INTERNAL TERMINATION
SP335EER1-L/TR	EXAR	获取价格	TRANSCEIVER WITH INTERNAL TERMINATION
SP336E	EXAR	获取价格	3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
SP336ECT-L	EXAR	获取价格	3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
SP336ECY-L	EXAR	获取价格	3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
SP336ECY-L/TR	EXAR	获取价格	Line Driver/Receiver, 4 Driver, PDSO28,

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