ATA6622(2008) データシートの表示（PDF） - Atmel Corporation

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ATA6622
(Rev.:2008)

LIN Bus Transceiver with 3.3V (5V) Regulator and Watchdog

Atmel Corporation 

A voltage less than the LIN Pre_Wake detection VLINL at the LIN pin activates the internal LIN

receiver.

Figure 4-2. Switch to Silent Mode

Normal Mode

Silent Mode

EN

TXD

NRES

Mode select window

td = 3.2 µs

VCC

Delay time silent mode

td_sleep = maximum 20 µs

LIN

LIN switches directly to recessive mode

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 the LIN pin (see Figure 4-3 on page 9) result in a

remote wake-up request. The device switches from Silent Mode to Fail-safe Mode. The internal

LIN slave termination resistor is switched on. The remote wake-up request is indicated by a low

level at the RXD pin to interrupt the microcontroller (see Figure 4-3 on page 9). EN high can be

used to switch directly to Normal Mode.

8 ATA6622/ATA6624/ATA6626

4986F–AUTO–07/08

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