TJA1081

更新时间： 2024-11-21 07:04:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
36页	178K
描述
FlexRay node transceiver

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TJA1081 数据手册

TJA1081

FlexRay node transceiver

Rev. 02 — 28 July 2009

Product data sheet

1. General description

The TJA1081 is a FlexRay node transceiver that is fully compliant with the FlexRay

electrical physical layer speciﬁcation V2.1 Rev. A (see Ref. 1) and partly complies with

versions V2.1 Rev. B. In addition, the TJA1081 already incorporates features and

parameters anticipated to be included in V3.0, currently being ﬁnalized. It is primarily

intended for communication systems from 1 Mbit/s to 10 Mbit/s, and provides an

advanced interface between the protocol controller and the physical bus in a FlexRay

network.

The TJA1081 features enhanced low-power modes, optimized for ECUs that are

permanently connected to the battery.

The TJA1081 provides differential transmit capability to the network and differential

receive capability to the FlexRay controller. It offers excellent EMC performance as well as

high ESD protection.

The TJA1081 actively monitors system performance using dedicated error and status

information (that can be read by any microcontroller), along with internal voltage and

temperature monitoring.

The TJA1081 supports mode control as used in the TJA1080A (see Ref. 2).

2. Features

2.1 Optimized for time triggered communication systems

I Compliant with FlexRay electrical physical layer speciﬁcation V2.1 Rev. A (see Ref. 1)

I Automotive product qualiﬁcation in accordance with AEC-Q100

I Data transfer up to 10 Mbit/s

I Support of 60 ns minimum bit time

I Very low ElectroMagnetic Emission (EME) to support unshielded cable

I Differential receiver with wide common-mode range for high ElectroMagnetic Immunity

(EMI)

I Auto I/O level adaptation to host controller supply voltage V_IO

I Can be used in 14 V and 42 V powered systems

I Bus guardian interface

I Independent power supply ramp-up for V_BAT, V_CCand V_IO

2.2 Low power management

I Low power management including inhibit switch

I Very low current in Sleep and Standby modes

12 3 4 5 6 7...36

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