SN65HVD21 Status: ACTIVE

Extended Common-mode RS-485 Transceiver

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Datasheet

Extended Common-Mode RS-485 Transceivers (Rev. D) (PDF 706 KB)
06 Apr 2005

	SN65HVD20	SN65HVD21	SN65HVD22	SN65HVD23	SN65HVD24
Drivers Per Package	1	1	1	1	1
Receivers Per Package	1	1	1	1	1
Supply Voltage(s)(V)	5	5	5	5	5
ESD(kV)	16	16	16	16	16
Temp Range(C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Signaling Rate(Mbps)	25	5	0.5	25	3
ICC(Max)(mA)	9	12	9	11	14
Fail Safe	Idle, Open, Short	Idle, Open, Short	Idle, Open, Short	Open, Short	Open, Short
Isolated	No	No	No	No	No
# of TX/RX	1 TX / 1 RX	1 TX / 1 RX	1 TX / 1 RX	1 TX / 1 RX	1 TX / 1 RX
Common Mode Range	-20 to 25	-20 to 25	-20 to 25	-20 to 25	-20 to 25
Number of Nodes	64	256	256	64	256
Duplex	Half	Half	Half	Half	Half
Footprint	SN75176	SN75176	SN75176	SN75176	SN75176
Comments	Wide Common Mode, 25 Mbps	Wide Common Mode, 5 Mbps	Wide Common Mode, 0.5 Mbps	Receiver Equalization, Wide Common Mode, 25 Mbps	Receiver Equalization, Wide Common Mode, 3 Mbps
Pin/Package	8PDIP, 8SOIC	8PDIP, 8SOIC	8PDIP, 8SOIC	8PDIP, 8SOIC	8PDIP, 8SOIC
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
Fault Protection(V)	-27 to 27	-27 to 27	-27 to 27	-27 to 27	-27 to 27
	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory

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PGA202: Digitally Controlled Programmable-Gain Instrumentation Amp

Product Information

Features

Common-Mode Voltage Range (–20 V to 25 V) More Than Doubles TIA/EIA-485 Requirement
Receiver Equalization Extends Cable Length, Signaling Rate (HVD23, HVD24)
Reduced Unit-Load for Up to 256 Nodes
Bus I/O Protection to Over 16-kV HBM
Failsafe Receiver for Open-Circuit, Short-Circuit and Idle-Bus Conditions
Low Standby Supply Current 1-µA Max
More Than 100 mV Receiver Hysteresis
APPLICATIONS
- Long Cable Solutions
  - Factory Automation
  - Security Networks
  - Building HVAC
- Severe Electrical Environments
  - Electrical Power Inverters
  - Industrial Drives
  - Avionics

Description

The transceivers in the HVD2x family offer performance far exceeding typical RS-485 devices. In addition to meeting all requirements of the TIA/EIA-485-A standard, the HVD2x family operates over an extended range of common-mode voltage, and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devices is ideally suited for long-cable networks, and other applications where the environment is too harsh for ordinary transceivers.

These devices are designed for bidirectional data transmission on multipoint twisted-pair cables. Example applications are digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
SN65HVD21D	ACTIVE	-40 to 85	1.55 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
SN65HVD21DG4	ACTIVE	-40 to 85	1.55 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
SN65HVD21DR	ACTIVE	-40 to 85	1.40 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
SN65HVD21DRG4	ACTIVE	-40 to 85	1.40 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
SN65HVD21P	ACTIVE	-40 to 85	1.55 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
SN65HVD21PE4	ACTIVE	-40 to 85	1.55 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:20 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksSN65HVD21D
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Asia	WPI	184
Worldwide	Mouser Electronics	150
TI Lead Time*: 20 WeeksSN65HVD21DG4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN65HVD21DR
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	>1k
TI Lead Time*: 20 WeeksSN65HVD21DRG4
None Reported View Distributors
TI Lead Time*: 14 WeeksSN65HVD21P
Americas	Newark	125
Americas	Rochester Electronics	>1k
Asia	WPI	78
Europe	Spoerle	150
Worldwide	DigiKey	102
TI Lead Time*: 14 WeeksSN65HVD21PE4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
SN65HVD21D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN65HVD21DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN65HVD21DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN65HVD21DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN65HVD21P	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN65HVD21PE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for SN65HVD21

Datasheet

Extended Common-Mode RS-485 Transceivers (Rev. D) (PDF, 706 KB)
06 Apr 2005

Application Notes

The RS-485 Unit Load and Maximum Number of Bus Connections (HTM, 8 KB) 1844 views
15 Mar 2004 Read Abstract

View Application Notes for RS-485

Tools & Software

Name	Part #	Company	Tool / Software Type
SN65HVD22EVM Evaluation Module	SN65HVD22EVM	Texas Instruments	Development Boards/EVMs

Simulation Models

IBIS Model
- SN65HVD21 IBIS Model (Rev. A) (Multiple File Format) 115 views
  15 Aug 2008 Read Abstract

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS61041	28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
OPA2353	High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier(TM) Series	PRECISION AMPLIFIER-WIDE BANDWIDTH	TI customers also evaluated this product.
PGA202	Digitally Controlled Programmable-Gain Instrumentation Amp	AMPLIFIERS AND LINEAR-PROGRAMMABLE GAIN AMPLIFIER	TI customers also evaluated this product.

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SN65HVD21 Status: ACTIVE

Extended Common-mode RS-485 Transceiver

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