ATA6622-EK Atmel, ATA6622-EK Datasheet - Page 11

• Manufacturer Part Number: ATA6622-EK
• Description: BOARD DEMO LIN SBC FOR ATA6622
• Manufacturer: Atmel

Specifications of ATA6622-EK

• Main Purpose: Interface, LIN
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6622
• Primary Attributes: LIN-SBC (System-Basis-Chip) Transceiver, LIN 2.0, Voltage Regulator, Window Watchdog
• Secondary Attributes: 4 Power Modes: Pre-Normal, Normal, Sleep, Silent, 20-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.5
4986J–AUTO–03/11
Unpowered Mode
If you connect battery voltage to the application circuit, the voltage at the VS pin increases
according to the block capacitor (see
undervoltage threshold VS
The VCC output voltage reaches its nominal value after t
VCC capacitor and the load.
The NRES is low for the reset time delay t
possible.
Figure 4-5.
Watchdog
regulator
voltage
LIN bus
TXD
VCC
NRES
RXD
EN
LIN Wake Up from Sleep Mode
Bus wake-up filtering time
Watchdog off
Low
Low
th
t
Atmel ATA6622/ATA6624/ATA6626
bus
, the IC mode changes from Unpowered Mode to Fail-safe Mode.
Off state
Figure 5-1 on page
reset
. During this time, t
Reset
time
Regulator wake-up time
Fail-safe Mode
VCC
Start watchdog lead time t
14). After VS is higher than the VS
start-up time delay
Low
On state
Microcontroller
. This time, t
reset
, no mode change is
VCC
, depends on the
EN High
Normal Mode
d
11