Rainbow Electronics ATA6662 - Manual (Page 7)

7
4916E–AUTO–02/07
ATA6662 [Preliminary]
Figure 3-2. LIN Wake-up Waveform Diagram
Figure 3-3. Wake-up from Wake-up Switch
Microcontroller start-up
delay time
Bus wake-up filtering time
(TBUS)
Off state
Node in sleep state
High or floating
Low or floating
Low
High
EN High
Normal
Mode Regulator wake-up time delay
INH
External
voltage
regulator
RXD
RXD
LIN bus
Microcontroller start-up
delay time
Wake filtering time
T
WAKE
Off state
Node in sleep state
High or floating
TXD weak pull-down resistor
Low or floating
State change
TXD strong pull-down
Node in
operation
Weak
pull-down
EN High
High Low
On state
High
Regulator wake-up time delay
Wake pin
INH
EN
TXD
RXD
Voltage
regulator