ATA6631(2014) 데이터 시트보기 (PDF) - Atmel Corporation

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ATA6631
(Rev.:2014)

LIN Bus Transceiver with Integrated Voltage Regulator

Atmel Corporation 

A falling edge at the LIN pin followed by a dominant bus level maintained for a certain time period (> tbus) and the following

rising edge at pin LIN (see Figure 4-3) results in a remote wake-up request which is only possible if TXD is high. The device

switches from silent mode to fail-safe mode, then the internal LIN slave termination resistor is switched on. The remote

wake-up request is indicated by a low level at pin RXD and TXD to interrupt the microcontroller (Figure 4-3). EN high can be

used to switch directly to normal mode.

Figure 4-3. LIN Wake-up Waveform Diagram from Silent Mode

Bus wake-up filtering time

tbus

Fail-safe mode

Normal mode

LIN bus

RXD

High

Low

TXD

High

High

VCC

EN

NRES

Silent mode 3.3V/5V

Fail-safe mode 3.3V/5V

Normal mode

EN High

Undervoltage detection active

8

ATA6629/ATA6631 [DATASHEET]

9165F–AUTO–10/14

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