Datasheet

SN65HVD255
SN65HVD256, SN65HVD257
www.ti.com SLLSEA2C –DECEMBER 2011–REVISED SEPTEMBER 2013
REVISION HISTORY
Changes from Original (December 2011) to Revision A Page
• Updates the Features list ...................................................................................................................................................... 1
• Updated the Applications list ................................................................................................................................................ 1
• Added text to the Description "The SN65HVD257 adds additional.." ................................................................................... 1
• Changed Figure 1 - Functional Block Diagram to include HVD257 and Note changes. ...................................................... 1
• Added SN65HVD257 to the D PACKAGE OPTIONS images .............................................................................................. 2
• Changed the DEVICE OPTIONS table ................................................................................................................................. 2
• Added SN65HVD257 FAULT pin to the PIN FUNCTIONS table ......................................................................................... 2
• Added SN65HVD257 to the Ordering Information table ....................................................................................................... 2
• Added footnote for SN65HVD257 function to Table 3 .......................................................................................................... 4
• Added 5 V V
CC
with FAULT Open-Drain Output Device (SN65HVD257) section ................................................................ 5
• Added RXD Dominant Timeout (SN65HVD257) section ...................................................................................................... 5
• Added FAULT pin information .............................................................................................................................................. 6
• Added SN65HVD257 FAULT pin information to the Abs Max table ..................................................................................... 9
• Added FAULT pin information to the ROC table .................................................................................................................. 9
• changed R
ID
- Differential input resistance value from 3 kΩ to 30 kΩ ................................................................................ 12
• Added t
RXD_DTO
- SN65HVD257 information ....................................................................................................................... 12
• Added Figure 8 "RXD Dominant Timeout Test Circuit and Measurement" ........................................................................ 14
• Added Figure 9 "FAULT Test and Measurement" .............................................................................................................. 14
• Added Example: Functional Safety Using the SN65HVD257 in a Redundant Physical Layer CAN Network Topology
section ................................................................................................................................................................................. 20
Changes from Revision A (June 2012) to Revision B Page
• Added SN65HVD257 status to production in Ordering Information table ............................................................................ 2
Changes from Revision B (June 2012) to Revision C Page
• Added Figure 6 - Example Timing Diagram for TXD DTO and FAULT Pin ......................................................................... 7
• Added Table 6 - Receiver Differential Input Voltage Threshold Test ................................................................................. 15
• Added - Bus loading, length and number of nodes section to Application Information ...................................................... 18
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Product Folder Links: SN65HVD255 SN65HVD256 SN65HVD257