ATA6612C View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

ATA6612C

8K/16K Flash Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Atmel Corporation 

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3.3.20.2 Silent Mode

A falling edge at EN when TXD is high switches the IC into silent mode. The TXD signal has to be logic high during the mode

select window (see Figure 3-3). The transmission path is disabled in silent mode. The overall supply current from VBatt is a

combination of the IVSsi 57µA plus the VCC regulator output current IVCC.

The internal slave termination between the LIN pin and the VS pin is disabled in silent mode, only a weak pull-up current

(typically 10µA) between the LIN pin and the VS pin is present. silent mode can be activated independently from the actual

level on the LIN, WAKE, or KL_15 pins.

If an under voltage condition occurs, NRES is switched to low, and the IC changes its state to fail-safe mode.

A voltage lower than the LIN pre_wake detection VLINL at the LIN pin activates the internal LIN receiver and switches on the

internal slave termination between the LIN pin and the VS pin.

Figure 3-3. Switch to Silent Mode

Normal Mode

Silent Mode

EN

TXD

NRES

Mode select window

td = 3.2μs

VCC

LIN

Delay time silent mode

td_sleep = maximum 20μs

LIN switches directly to recessive mode

12 ATA6612C/ATA6613C [DATASHEET]

9111L–AUTO–11/14

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