3.3 V Half-Duplex RS-485, with IEC ESD, 50 Mbps - SN65HVD78

SN65HVD78 (ACTIVE)

3.3 V Half-Duplex RS-485, with IEC ESD, 50 Mbps

 

Description

These devices have robust 3.3-V drivers and receivers in a small package for demanding industrial applications. The bus pins are robust to ESD events with high levels of protection to Human-Body Model and IEC Contact Discharge specifications.

Each of these devices combines a differential driver and a differential receiver which operate from a single 3.3-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. These devices feature a wide common-mode voltage range making the devices suitable for multi-point applications over long cable runs. These devices are characterized from –40°C to 125°C.

Features

  • Small-size VSSOP Packages Save Board Space, or SOIC for Drop-in Compatibility
  • Bus I/O Protection
    • >±15 kV HBM Protection
    • >±12 kV IEC 61000-4-2 Contact Discharge
    • >±4 kV IEC 61000-4-4 Fast Transient Burst
  • Extended Industrial Temperature Range –40°C to 125°C
  • Large Receiver Hysteresis (80 mV) for Noise Rejection
  • Low Unit-Loading Allows Over 200 Connected Nodes
  • Low Power Consumption
    • Low Standby Supply Current: < 2 µA
    • ICC < 1 mA Quiescent During Operation
  • 5-V Tolerant Logic Inputs Compatible With 3.3-V or 5-V Controllers
  • Signaling Rate Options Optimized for:
  • Glitch Free Power-Up and Power-Down Bus Inputs and Outputs

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Parametrics Compare all products in RS-485/RS-422

 
Supply Voltage(s) (Nom) (V)
No. of TX
No. of RX
Duplex
Isolated
Signaling Rate (Max) (Mbps)
HBM ESD (kV)
IEC 61000-4-2 Contact (+/- kV)
Number of Nodes
Common Mode Range
Fault Protection (V)
Fail Safe
ICC (Max) (mA)
Rating
Operating Temperature Range (C)
Package Group
Pin/Package
SN65HVD78 SN65HVD01 SN65HVD72 SN65HVD75
3.3    3.3    3.3    3.3   
1    1    1    1   
1    1    1    1   
Half    Half    Half    Half   
No    No    No    No   
50    20    0.25    20   
15    15    15    15   
12    16    12    12   
200    256    200    200   
-7 to 12    -7 to 12    -7 to 12    -7 to 12   
-13 to 16.5    -13 to 16.5    -13 to 16.5    -13 to 16.5   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
0.95    1.1    0.95    0.95   
Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125   
SOIC
SON
VSSOP   
VSON    SOIC
SON
VSSOP   
SOIC
SON
VSSOP   
8SOIC
8SON
8VSSOP   
10VSON    8SOIC
8SON
8VSSOP   
8SOIC
8SON
8VSSOP   

WEBENCH® Designer SN65HVD78

Tx:
Mid Channel:
Rx:
Max Data Rate:  Gbps

 
Number of UI:
PRBS:
 
Eye Diagram