SN65HVD30_15 Datasheet, PDF (1/42 Pages) Texas Instruments – SN65HVD3x 3.3-V Full-Duplex RS-485 Drivers and Receivers

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
SN65HVD30, SN65HVD31, SN65HVD32
SN65HVD33, SN65HVD34, SN65HVD35
SLLS665K – SEPTEMBER 2005 – REVISED OCTOBER 2015
SN65HVD3x 3.3-V Full-Duplex RS-485 Drivers and Receivers
1 Features
•1 1/8 Unit-Load Option Available
(Up to 256 Nodes on the Bus)
• Bus-Pin ESD Protection Exceeds 15-kV HBM
• Optional Driver Output Transition Times for
Signaling Rates of 1 Mbps, 5 Mbps and 26 Mbps
– Line Signaling Rate is the Number of Voltage
Transitions Made per Second Expressed in
Units of bps (bits per second)
• Low-Current Standby Mode: <1 μA
• Glitch-Free Power-Up and Power-Down Protection
for Hot-Plugging Applications
• 5-V Tolerant Inputs
• Bus Idle, Open, and Short-Circuit Failsafe
• Driver Current Limiting and Thermal Shutdown
• Designed for RS-422 and RS-485 Networks
• 5-V Devices Available, SN65HVD50-55
2 Applications
• Utility Meters
• DTE and DCE Interfaces
• Industrial, Process, and Building Automation
• Point-of-Sale (POS) Pins and Networks
3 Description
The SN65HVD3x devices are 3-state differential line
drivers and differential-input line receivers that
operate with 3.3-V power supply.
Each driver and receiver has separate input and
output pins for full-duplex bus communication
designs. They are designed for RS-422 and RS-485
data transmission over cable lengths of up to
1500 meters.
The SN65HVD30, SN65HVD31, and SN65HVD32
devices are fully enabled with no external enabling
pins.
The SN65HVD33, SN65HVD34, and SN65HVD35
devices have active-high driver enables and active-
low receiver enables. A low, less than 1 μA, standby
current can be achieved by disabling both the driver
and receiver.
All devices are characterized for ambient
temperatures from –40°C to 85°C. Low power
dissipation allows operation at temperatures up to
105°C or 125°C, depending on package option.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SN65HVD30
SN65HVD31
SOIC (8)
4.90 mm × 3.91 mm
SN65HVD32
SN65HVD33
SOIC (14)
VQFN (20)
8.65 mm × 3.91 mm
4.50 mm × 3.50 mm
SN65HVD34
SN65HVD35
SOIC (14)
8.65 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
RD
Y
Z ^RT
DE
Master
RE
B
D
R
A ^RT
A
R_{T B}
R
R
RE
Slave
Z
DE
R_{T Y}
DD
AB
ZY
R Slave
D
R RE DE D
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.