关键词： 集成电路 CAN芯片 

品牌：NXP 

型号：TJA1055T/1

封装：SOP-14

1. General description The TJA1055 is the interface between the protocol controller and the physical bus wires in a Controller Area Network (CAN). It is primarily intended for low-speed applications up to 125 kBd in passenger cars. The device provides differential receive and transmit capability but will switch to single-wire transmitter and/or receiver in error conditions. The TJA1055 is the enhanced version of the TJA1054 and TJA1054A. TJA1055 has the same functionality but in addition offering a number of improvements. The most important improvements of the TJA1055 with respect to the TJA1054 and TJA1054A are: ? Improved ElectroStatic Discharge (ESD) performance ? Lower current consumption in sleep mode ? Wake-up signalling on RXD and ERR without VCC active ? 3 V interfacing with microcontroller possible with TJA1055T/3 2. Features and benefits 2.1 Optimized for in-car low-speed communication ? Pin-to-pin compatible with TJA1054 and TJA1054A ? Baud rate up to 125 kBd ? Up to 32 nodes can be connected ? Supports unshielded bus wires ? Very low ElectroMagnetic Emission (EME) due to built-in slope control function and a very good matching of the CANL and CANH bus outputs ? Very high ElectroMagnetic Immunity (EMI) in normal operating mode and in low power modes ? Fully integrated receiver filters ? Transmit Data (TxD) dominant time-out function ? High ESD robustness: ? ?8 kV Electrostatic Discharge (ESD) protection Human Body Model (HBM) for off-board pins ? ?6 kV Electrostatic Discharge (ESD) protection IEC 61000-4-2 for off-board pins ? Low-voltage microcontroller support 2.2 Bus failure management ? Supports single-wire transmission modes with ground offset voltages up to 1.5 V ? Automatic switching to single-wire mode in the event of bus failures, even when the CANH bus wire is short-circuited to VCC