ata6616 ATMEL Corporation, ata6616 Datasheet - Page 11

• Manufacturer Part Number: ata6616
• Description: Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
• Manufacturer: ATMEL Corporation

3.4.3
9132A–AUTO–10/08
DRAFT
Sleep Mode
Figure 3-4.
A falling edge at EN when TXD is low switches the IC into Sleep Mode. The TXD Signal has to
be logic low during the Mode Select window
disabled in Sleep Mode. The supply current I
The VCC regulator is switched off. NRES and RXD are low. The internal slave termination
between the LIN pin and VS pin is disabled, only a weak pull-up current (typically 10 µA)
between the LIN pin and the VS pin is present. Sleep Mode can be activated independently from
the current level on the LIN, WAKE, or KL_15 pin.
A voltage less 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.
A falling edge at the LIN pin followed by a dominant bus level maintained for a certain time
period (t
request.
Watchdog
regulator
voltage
LIN bus
VCC
NRES
TXD
RXD
EN
bus
) and a following rising edge at pin LIN respectively results in a remote wake-up
Node in silent mode
LIN Wake Up from Silent Mode
Bus wake-up filtering time
Watchdog off
Silent mode
t
High
bus
ATA6616/ATA6617 [Preliminary]
Undervoltage detection active
VSsleep
(Figure 3-5 on page
from V
Start watchdog lead time t
Fail-safe mode
Fail-safe mode
Batt
is typically 10 µA.
Low
12). The transmission path is
d
Normal mode
EN High
Normal mode
High
11