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 SN65HVD76 SN65HVD77 THVD1410 THVD1450 THVD1451 THVD1452
3.3    3.3    3.3    3.3    3.3    3.3    3.3
5   
3.3
5   
3.3
5   
3.3
5   
1    1    1    1    1    1    1    1    1    1   
1    1    1    1    1    1    1    1    1    1   
Half    Half    Half    Half    Full    Full    Half    Half    Full    Full   
No    No    No    No    No    No    No    No    No    No   
50    20    0.25    20    50    50    0.5    50    50    50   
15    15    15    15    30    30    30    30    30    30   
12    16    12    12    12    12    16    16    16    16   
200    256    200    200    96    96    256    256    256    256   
-7 to 12    -7 to 12    -7 to 12    -7 to 12    -7 to 12    -7 to 12    -15 to +15    -15 to +15    -15 to +15    -15 to +15   
-13 to 16.5    -13 to 16.5    -13 to 16.5    -13 to 16.5      -13 to 16.5    -18 to +18    -18 to +18    -18 to +18    -18 to +18   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
0.95    1.1    0.95    0.95    1.1    1.1           
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
SOIC
SON
VSSOP   
VSON    SOIC
SON
VSSOP   
SOIC
SON
VSSOP   
SOIC
VSSOP   
SOIC
VSSOP   
SOIC
VSSOP   
SOIC
SON
VSSOP   
SON    SOIC
VSSOP   
8SOIC
8SON
8VSSOP   
10VSON    8SOIC
8SON
8VSSOP   
8SOIC
8SON
8VSSOP   
10VSSOP
14SOIC   
8SOIC
8VSSOP   
8SOIC
8VSSOP   
8SOIC
8SON
8VSSOP   
8SON    10VSSOP
14SOIC   

WEBENCH® Designer SN65HVD78

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

 
Number of UI:
PRBS:
 
Eye Diagram