Datasheet

SN65HVD20, SN65HVD21
SN65HVD22, SN65HVD23, SN65HVD24
SLLS552E –DECEMBER 2002– REVISED MAY 2010 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
DESCRIPTION (CONTINUED)
The ‘HVD20 provides high signaling rate (up to 25 Mbps) for interconnecting networks of up to 64 nodes.
The ‘HVD21 allows up to 256 connected nodes at moderate data rates (up to 5 Mbps). The driver output slew
rate is controlled to provide reliable switching with shaped transitions which reduce high-frequency noise
emissions.
The ‘HVD22 has controlled driver output slew rate for low radiated noise in emission-sensitive applications and
for improved signal quality with long stubs. Up to 256 ‘HVD22 nodes can be connected at signaling rates up to
500 kbps.
The ‘HVD23 implements receiver equalization technology for improved jitter performance on differential bus
applications with data rates up to 25 Mbps at cable lengths up to 160 meters.
The ‘HVD24 implements receiver equalization technology for improved jitter performance on differential bus
applications with data rates in the range of 1 Mbps to 10 Mbps at cable lengths up to 1000 meters.
The receivers also include a failsafe circuit that provides a high-level output within 250 microseconds after loss of
the input signal. The most common causes of signal loss are disconnected cables, shorted lines, or the absence
of any active transmitters on the bus. This feature prevents noise from being received as valid data under these
fault conditions. This feature may also be used for Wired-Or bus signaling.
The SN65HVD2X devices are characterized for operation over the temperature range of –40°C to 85°C.
PRODUCT SELECTION GUIDE
PART NUMBERS CABLE LENGTH AND SIGNALING RATE
(1)
NODES MARKING
D: VP20
SN65HVD20 Up to 50 m at 25 Mbps Up to 64
P: 65HVD20
D: VP21
SN65HVD21 Up to 150 m at 5 Mbps (with slew rate limit) Up to 256
P: 65HVD21
D: VP22
SN65HVD22 Up to1200 m at 500 kbps (with slew rate limit) Up to 256
P: 65HVD22
D: VP23
SN65HVD23 Up to 160 m at 25 Mbps (with receiver equalization) Up to 64
P: 65HVD23
D: VP24
SN65HVD24 Up to 500 m at 3 Mbps (with receiver equalization) Up to 256
P: 65HVD24
(1) Distance and signaling rate predictions based upon Belden 3105A cable and 15% eye pattern jitter.
AVAILABLE OPTIONS
PLASTIC THROUGH-HOLE PLASTIC SMALL-OUTLINE
(1)
P−PACKAGE D−PACKAGE
(JEDEC MS-001) (JEDEC MS-012)
SN65HVD20P SN65HVD20D
SN65HVD21P SN65HVD21D
SN65HVD22P SN65HVD22D
SN65HVD23P SN65HVD23D
SN65HVD24P SN65HVD24D
(1) Add R suffix for taped and reeled carriers.
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Product Folder Link(s): SN65HVD20 SN65HVD21 SN65HVD22 SN65HVD23 SN65HVD24