Texas Instruments 4Q 2006 manual Can 3.3-V and 5-V High-Speed can Transceivers, Selection Guide

Page 18

18CAN (3.3-V and 5-V High-Speed CAN Transceivers)

➔

Design Considerations

Bus Protection — Features such as short-circuit protection, thermal shutdown protection, glitch-free power-up and power- down protection, high-ESD protection, wide common-mode range that provides for common-mode noise rejection, and current- limiting circuitry to protect the transceivers and system from damage during a fault condition have been incorporated into these devices.

CAN Transceiver Selection Guide

Electromagnetic Compatibility — An important requirement for products intended for networking applications is that they behave in a way that does not interfere with the operation of other nearby components or systems. TI offers specially designed and tested transceivers for EM compatibility without malfunction or degradation of performance in rugged EM environments. Compatibility in this definition means both immunity to external EM fields, and the limited strength of generated EM fields.

Supply Voltage — In addition to 5-V transceivers, TI offers 3.3-V transceivers that accomplish the same tasks with less than half the power and save on the cost of an additional voltage regulator in 3.3-V powered applications.

Technical Information

•ISO11898 specifies the physical-layer implementation of CAN.

•This specification describes a twisted wire pair bus with 120-W characteristic impedance (Zo) and differential signaling rate of up to 1 Mbps on a 40-meter bus with multi-drop topology.

 

Supply

 

 

ICC

ESD

Bus Fault

Operating

Price*

 

Voltage

Device

Description

Max (mA)

(kV)

Protection (V)

Temp Range

 

5.0

SN65HVD251

Improved Drop-In Replacement for the PCA82C250 and PCA82C251

65

±14

±36

–40 to 125° C

0.90

 

5.0

 

 

 

 

 

 

 

 

SN65HVD1050

Improved Drop-In Replacement for the TJA1050 with Better ESD

70

±8

–27 to 40

–40 to 125° C

0.55

 

3.3

SN65HVD230

3.3-V CAN Bus Transceiver, Standby Mode

67

±16

–4 to 16

–40 to 85° C

1.35

 

 

SN65HVD231

3.3-V CAN Bus Transceiver, Sleep Mode

67

±16

–4 to 16

–40 to 85° C

1.35

 

3.3

SN65HVD232

3.3-V CAN Bus Transceiver, Cost Effective

67

±16

–4 to 16

–40 to 85° C

1.30

 

 

SN65HVD233

3.3-V CAN Bus Transceiver, Standby Mode, Diagnostic Loop-back

56

±16

±36

–40 to 125° C

1.50

 

 

SN65HVD234

3.3-V CAN Bus Transceiver, Standby Mode, Sleep Mode

56

±16

±36

–40 to 125° C

1.45

 

 

SN65HVD235

3.3-V CAN Bus Transceiver, Standby Mode, Autobaud Loop-back

56

±16

±36

–40 to 125° C

1.50

All devices have a signaling rate of 1 Mbps.

*Suggested resale price in U.S. dollars in quantities of 1,000.

New products are listed in bold red.

Selection Guide

Device

DSPs with CAN Controllers (3.3-V Supply Voltage)

 

 

 

 

 

TMS320LF2403A

TMS320F2802-60

TMS320LC2403A

TMS320F2806

TMS320LF2406A

TMS320F2808

TMS320LC2406A

TMS320F2809

TMS320LF2407A

TMS320F2810

TMS320LF2407A

TMS320C2810

TMS320F2801

TMS320F2811

TMS320F2801-100

TMS320R2811

TMS320F2801-60

TMS320C2811

TMS320F28016

TMS320F2812

TMS320C2802

TMS320C2812

TMS320F2802-100

TMS320R2812

ARM7 Microprocessors with CAN Controllers (3.3-V Supply Voltage)

TMS470R1A64

TMS470R1A384

TMS470R1A128

TMS470R1B512

TMS470R1A256

TMS470R1B768

TMS470R1A288

TMS470R1B1M

Standard Compliant Protocols

CAN is a serial communications bus for robust real-time control applications that is rapidly gaining the attention of industrial process, test, measurement and control engineers worldwide. It has excellent error detection and confinement capabilities, and has the flexibility to operate either as a primary backbone data communications network, as a secondary local embedded system, or as both. The engineering community is just now exploring the limits of what this bus can do when coupled with newly developed intelligent sensing technologies.

Besides CAN’s high reliability, another of the main advantages of CAN when compared to alternative networks, is the availability of higher layer protocols (HLPs). There are many CAN-related system development packages prepared for these HLPs – hardware interface cards and easy-to-use software packages that provide system designers with a wide range of design and diagnostic tools. These compo- nents provide for the rapid development of complex control applications without building each node of a system network from scratch.

The HLP relieves a developer from the burden of dealing with CAN-specific details such as

bit-timing and implementation functions. It provides standardized communication objects for real-time data with Process Data Objects (PDOs) and Service Data Objects (SDOs), and provides special functions such as a time stamp, a sync message, and emergency shut-down procedures as well as network management, boot-up commands, and error management.

Among the most popular HLPs are CANopen, CANkingdom and DeviceNet with applications ranging from medical equipment to process control and assembly line coordination.

Interface Selection Guide

Texas Instruments 4Q 2006

Page 17 Page 19
Image 18
Page 17 Page 19
Contents Interface Selection Guide Table of Contents Interface Selection GuideInterface Selection Guide Clock Distribution Circuits pTechnical Information LVDS, xECL, CMLDesign Considerations Lvds Family of ProductsPecl Selection Guide Texas Instruments 4QLvds Selection Guide Dual Family SupplyDevice Pin/Packages Price Single Family Quad FamilyMultipoint Lvds Lvds FeaturesMultipoint-LVDS M-LVDS Lvds Devices from TIHalf Part-toDigital Isolators Mbps Jitter To ensure signal integrityKey Features Digital Isolators Selection GuideRS-485/422 RS-485/422 Family of ProductsNodes FeaturesNo. Dr/Rx SoicRS232 IEC6100-4-2 Level ESD-Protected Devices Flexible power-saving options enable longer battery lifeRS-232 Space-saving QFN package options for portable applicationsDevice Drivers ReceiversPin/Packages Price RS-232 Selection Guide Pin/Package PriceUart Family of Products Programmable sleep mode and low-power modeUARTs Universal Asynchronous Receiver/Transmitters 64-byte FIFOs available 3-, 2.5- and 1.8-V supplyAsynchronous Communications Element with Autoflow Control UARTs Universal Asynchronous Receiver/TransmittersUart Selection Guide PDAs MP3 players Gaming systems Modems Serial ports TelecomSelection Guide Can 3.3-V and 5-V High-Speed can TransceiversCan Transceiver Selection Guide Standard Compliant ProtocolsFlatLink 3G Selection Guide Flatlink 3GFlatLinkTM 3G Display SerDes for Mobile Phones 1755Buffer SerDes Solutions-Frontplane/BackplaneSerDes Serial Gigabit Transceivers and Lvds PhotoGigabit Xaui Ethernet SerDes Serial Gigabit Transceivers Selection GuideGigabit Ethernet/FibreChannel Lvds Serdes22 DVI/PanelBus High Bandwidth Digital Content Protection HdcpContent protection for video sent over DVI Hdcp ElementsDesktop LCD monitors DLP and LCD projectors Digital TVs Digital visual interface DVI compliantSet-top boxes Max ps Intra-Pair ps Inter-Pair Clock P-P Data P-PJitter 40QFNTransfer Type Universal Serial Bus USBSpeed USB-to-Serial BridgeUSB Hub Controllers and Peripheral Devices USB Family of ProductsPackage USB Power Managers Family of Products Port USB Hub Power ControllersUniversal Serial Bus USB Power Managers USB Power Managers Selection GuidePCI Express DeviceClassifications PCI Express Key BenefitsTarget Markets Target Market ExpressCards PC Add-In Cards PC MotherboardsPainful and not robust TX BlockRX Block Capabilities PCI BridgesTwo 32-bit, 33- or 66-MHz buses FunctionalityCardBus Power Switches Power Distribution Devices Family of ProductsEnable Predecessor Transition TimeIN1 to IN2 Link-Layer Selection Issues 36 1394 FireWirePhysical-Layer Selection Issues OverviewFaster speeds from 800 Mbps to 3200 Mbps 1394b AdvantagesReal-time streaming of audio and video More efficient Boss arbitrationFireWire Key Features ApplicationsSignal Integrity TI vs Competition Conn. Conn. Conn. Conn. Conn. ConnDevice Description Price Gtlp Gunning Transceiver Logic PlusGtlp Selection Guide Other LiteratureVME HighlightsClock Distribution Circuits SN65HVD3085E SN65HVD3082ECross-Reference Guide SN65HVD3088ECross-Reference Guide SN65LVDT3486BPericom SN65LVDT9637BDevice Index Texas InstrumentsInternet Product Information CentersImportant Notice
Top Page Image Contents