Figure 4-2. Switch to Silent Mode
Normal Mode
EN
ATA6623/ATA6625
Silent Mode
TXD
NRES
Mode select window
td = 3.2 µs
VCC
Delay time silent mode
td_silent = maximum 20 µs
LIN
LIN switches directly to recessive mode
Figure 4-3.
LIN Wake-up Waveform Diagram from Silent Mode
Bus wake-up filtering time
tbus
Fail-safe mode
LIN bus
Normal mode
RXD
High
Low
VCC
Silent mode 3.3V/5V/50 mA
Fail-safe mode 3.3V/5V/50 mA Normal mode
EN High
EN
NRES
Undervoltage detection active
7
4957H–AUTO–05/10